PebbleDash - Lazarus / HiddenCobra RAT

2020-06-01 Malware Nailed

https://malwarenailed.blogspot.com/2020/06/peebledash-lazarus-hiddencobra-rat.html

Thumbnail for PebbleDash - Lazarus / HiddenCobra RAT

The source analyzes PebbleDash, described as a Lazarus/Hidden Cobra RAT, using sample MD5 d2de01858417fa3b580b3a95857847d5. Static and dynamic analysis found strings beginning with "Zip-bug," runtime loading of libraries including wsock32.dll, and use of IsProcessorFeaturePresent to identify the victim OS version before opening a socket connection. Decoding the sockaddr structure showed the malware connecting over port 443 to 112.217.108.138, an IOC the author notes also appears in a US-CERT advisory. The report gives defenders concrete pivots for PebbleDash detection, including API-resolution behavior, the C2 address, and related samples discovered through shared embedded strings.

Indicators of Compromise

Type Value First Seen Last Seen
HASH d2de01858417fa3b580b3a95857847d5 2020-06-01 2020-06-01
IPv4 112.217.108.138 2020-06-01 2020-06-01

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