Analysis
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max time kernel
68s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20220331-en -
submitted
30-03-2022 02:44
General
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Target
e4ef7fd36fe35a933c6ac97a274a0598a78cfb4f5144525c0ad25d5b55f1a3a4.exe
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Size
804KB
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MD5
277d2552513e4d0d0b60ee61d55f0e37
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SHA1
9c556c184ea92857197a3934b894660e3416b30e
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SHA256
e4ef7fd36fe35a933c6ac97a274a0598a78cfb4f5144525c0ad25d5b55f1a3a4
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SHA512
fa76bd9b0c1e477d3dd8ad78e38cb9efc5088bc83e2eb54812062cdbd1191700634cb3443b704de3aecec6fcf714840473d7eeda3f3cf5a7a606637b0aab4b82
Malware Config
Signatures
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main Payload 1 IoCs
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Executes dropped EXE 1 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL 1 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext 1 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\e4ef7fd36fe35a933c6ac97a274a0598a78cfb4f5144525c0ad25d5b55f1a3a4.exe"C:\Users\Admin\AppData\Local\Temp\e4ef7fd36fe35a933c6ac97a274a0598a78cfb4f5144525c0ad25d5b55f1a3a4.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
63KB
MD50d5df43af2916f47d00c1573797c1a13
SHA1230ab5559e806574d26b4c20847c368ed55483b0
SHA256c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc
SHA512f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2
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Filesize
63KB
MD50d5df43af2916f47d00c1573797c1a13
SHA1230ab5559e806574d26b4c20847c368ed55483b0
SHA256c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc
SHA512f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2
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Filesize
94KB
MD514ff402962ad21b78ae0b4c43cd1f194
SHA1f8a510eb26666e875a5bdd1cadad40602763ad72
SHA256fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b
SHA512daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b
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Filesize
5.6MB
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Filesize
584KB
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Filesize
832KB
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Filesize
548KB
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-
Filesize
536KB
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Filesize
408KB
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Filesize
320KB
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Filesize
624KB
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Filesize
40KB
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Filesize
8KB