Analysis
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max time kernel
150s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
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submitted
14-03-2023 04:15
General
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Target
af831bff9f27dca7c2595819bd77f4b0cdbd477ae0482d7e80517f8e6364086b.exe
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Size
422KB
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MD5
749e55e9bf42bac10f00077e595fae36
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SHA1
006f4dc6c68f57dde5f658df051f36e66d3ad33b
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SHA256
af831bff9f27dca7c2595819bd77f4b0cdbd477ae0482d7e80517f8e6364086b
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SHA512
5772a0cde2c36ac97fc668d9d3e0612df693c202ccf20cd9c5680052236fe399f1bb8f9789328cee8f2d0b95969bbe2ad2b38b3f3dbbf208f54928a76cdb8adf
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SSDEEP
6144:qybCfaIxuvoVaLnHSG2ST97S4D3uRKFE6/47HJeauZ34XBDB:yxuSoSG2wFS4D3xEi4bJFf
Malware Config
Signatures
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Blackmoon, KrBanker
Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.
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Detect Blackmoon payload 6 IoCs
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Gh0st RAT payload 3 IoCs
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Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
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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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Adds Run key to start application 2 TTPs 2 IoCs
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Modifies registry class 1 IoCs
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Opens file in notepad (likely ransom note) 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: RenamesItself 1 IoCs
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Suspicious use of SetWindowsHookEx 6 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\af831bff9f27dca7c2595819bd77f4b0cdbd477ae0482d7e80517f8e6364086b.exe"C:\Users\Admin\AppData\Local\Temp\af831bff9f27dca7c2595819bd77f4b0cdbd477ae0482d7e80517f8e6364086b.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\af831bff9f27dca7c2595819bd77f4b0cdbd477ae0482d7e80517f8e6364086b.txt2⤵
- Opens file in notepad (likely ransom note)
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 21762⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2040 -ip 20401⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
120KB
MD53aea5b78bac5359a799c2714fecccd1a
SHA15d3203b328ecfc7a55c0ded1032d209e9f273367
SHA256c05e763cab67cf9daf5be7a6a6cff2650223987a9693eaa119f69b2bbb6df6c3
SHA5129513cc84a7ed3dd709d4affb03f6e286dcd43e82f33441c00a9d74d2b45449f2ee20baa8db46218d7a59d9e62fb7f95050ea305166e70f3e71dde39ccf07b6d3
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Filesize
2KB
MD57943effe67a4647e06def2348949020e
SHA1eabd561f0639a975de259633f63896d82c3f878d
SHA2563fac47db92d581b2daef7a4f9493be2fe441041e5158101d80873d05808d5cfa
SHA512c9db1962e7457c94426c2a5c7f439736697d4399db6982c45357459d58805daa4a9d297912135488b6990e265ffa59d687fd5ba43717aab46ccc212083ef5003
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Filesize
251B
MD5706166376c141d43ec76c5b3248f0094
SHA1a2a16cd2591220cc9f941ceca8d40271d51a300b
SHA256e6f17db5e8a7b60b76361887af9d24d42c37821bf31f8d39b41e046cee70ad38
SHA512e7de7b9b35012247ae83cf767cc6f3fd9f18ef082bea6e8df5dbef5f1bc58a791de09780fa0fc15a2de233c59aa2ea5cdee7f9915322011759767578e9026947
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Filesize
408KB
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Filesize
968KB
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Filesize
1.2MB
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Filesize
408KB
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Filesize
408KB
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Filesize
12KB
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Filesize
1.2MB
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Filesize
12KB
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Filesize
968KB
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Filesize
1.2MB
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Filesize
156KB
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Filesize
968KB
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Filesize
92KB
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Filesize
56KB
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Filesize
156KB
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Filesize
408KB
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Filesize
408KB
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Filesize
12KB
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Filesize
408KB
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Filesize
156KB