General
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Target
HEUR-Trojan.Win32.Chapak.gen-c82a55fdd3caeb95.exe
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Size
1.5MB
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Sample
230208-p87qrsah26
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MD5
78cc2004a61a5f5bd968bc7449a6e41d
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SHA1
5d68410afdd470c5d076b6de46c3b2eeee953be1
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SHA256
c82a55fdd3caeb95db17754e3ba270ec93a7eb3c9997f9f9c6f02de0e17bacec
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SHA512
c7cb55dcc7344b3f00f93e49eb49712bb85cb7bc4d1bc85f81b3cf1358cec9375e427fc7403c9eeb0eb715a7c4b0a08b423759d76dd12f14ab6f38c96fdf5bad
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SSDEEP
49152:EgSqM6bpcBJT+tFgYlGiFKtFHbo1kEJwQ/oW1vAaK:Jq7v7FdEJw8oaoJ
Malware Config
Extracted
nullmixer
http://marisana.xyz/
Targets
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Target
HEUR-Trojan.Win32.Chapak.gen-c82a55fdd3caeb95.exe
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Size
1.5MB
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MD5
78cc2004a61a5f5bd968bc7449a6e41d
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SHA1
5d68410afdd470c5d076b6de46c3b2eeee953be1
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SHA256
c82a55fdd3caeb95db17754e3ba270ec93a7eb3c9997f9f9c6f02de0e17bacec
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SHA512
c7cb55dcc7344b3f00f93e49eb49712bb85cb7bc4d1bc85f81b3cf1358cec9375e427fc7403c9eeb0eb715a7c4b0a08b423759d76dd12f14ab6f38c96fdf5bad
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SSDEEP
49152:EgSqM6bpcBJT+tFgYlGiFKtFHbo1kEJwQ/oW1vAaK:Jq7v7FdEJw8oaoJ
Score10/10-
Detects Smokeloader packer
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Modifies Windows Defender Real-time Protection settings
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NullMixer
NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.
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PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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SmokeLoader
Modular backdoor trojan in use since 2014.
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ASPack v2.12-2.42
Detects executables packed with ASPack v2.12-2.42
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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