Android Malware Appears Linked to Lazarus Cybercrime Group

2017-11-20 Mcafee

https://www.mcafee.com/blogs/other-blogs/mcafee-labs/android-malware-appears-linked-to-lazarus-cybercrime-group/

McAfee analyzed a repackaged Korean Bible-reading Android APK that contained and executed a backdoor ELF from its assets, turning infected devices into bots. The implant stored encoded control-server IPs in /data/system/dnscd.db, randomly selected a server, and sent callback beacons disguised as SSL ClientHello traffic with well-known domains in the SNI field. After connecting, it accepted command codes from the controller and returned execution results using a custom protocol. McAfee linked the mobile backdoor to Lazarus with high confidence based on reused campaign infrastructure, similar encryption-key generation routines, fake TLS callback logic, and protocol similarities to executables used by the group.

Indicators of Compromise

Type Value First Seen Last Seen
IPv4 217.117.4.110 2017-11-20 2020-02-25
HASH 24f61120946ddac5e1d15cd64c48b7e6 2017-11-20 2018-04-07
HASH 9ce9a0b3876aacbf0e8023c97fd0a21d 2017-11-20 2018-04-07
IPv4 181.119.19.100 2017-11-20 2018-04-07
IPv4 197.211.212.31 2017-11-20 2018-04-07
IPv4 114.215.130.173 2017-11-20 2018-04-07
IPv4 61.106.2.96 2017-11-20 2018-04-07
IPv4 110.45.145.103 2017-11-20 2018-04-07
IPv4 139.196.55.146 2017-11-20 2018-04-07
IPv4 199.180.148.134 2017-11-20 2018-04-07
IPv4 119.29.11.203 2017-11-20 2018-04-07
IPv4 124.248.228.30 2017-11-20 2018-04-07
IPv4 14.139.200.107 2017-11-20 2018-04-07
IPv4 175.100.189.174 2017-11-20 2018-04-07
HASH 8b98bdf2c6a299e1fed217889af54845 2017-11-20 2017-11-20
DOMAIN vmware-probe.zol.co 2017-11-20 2017-11-20
DOMAIN mail.wavenet.com 2017-11-20 2017-11-20
DOMAIN wtps.org 2017-11-20 2017-11-20

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