Analysis
- max time kernel
147s - max time network
120s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
18/10/2022, 04:18
General
- Target invoice.exe
- Size 611KB
- Sample221018-ewybfseffl
- SHA256 03877e2ca8962961d8cf797402da2bccb8fc6afe876cfa4e327ef29363a9b4ba
Malware Config
Extracted
-
formbook
-
dj6o
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eHTcR+KSbIHKrEJYcaqomJrw
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d4CQy4B84xPiXuPwHUtF
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8eIkbHEq+BPxberwHUtF
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m0+kGJZPG1H1jgngcA==
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AMbXEsJxX4/J80MD
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cxBd6axquGelQQc=
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J9URjF0q/TbJ80MD
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HxxYujs6bp7dberwHUtF
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VhwjWCuW1Xau
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Hs4ZrXYwBycFVX7hJpekXd1oRg==
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XyAqZOXgWECQBQ==
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H+HaBrNXMlQ5j+GkDTwf7dEalRSG8g==
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Kvj6PwPvL2f1jgngcA==
-
q3F0mzHxjbyi
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G/sniBrf1waZ08/yTxyN8qLm
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9uD0ZBYgb5ZiuP3wHUtF
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Ndkqiyj14RhyZziD6WwV4O8=
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PuY9wEs6hMAOTUs2mUCtdjzUeRyb+A==
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PwsHXAKokKjJ80MD
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xa4YnG9AI0WKthDfFO0=
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 3 IoCs
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
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C:\Users\Admin\AppData\Local\Temp\invoice.exe"C:\Users\Admin\AppData\Local\Temp\invoice.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\invoice.exe"{path}"3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1268-132-0x0000000000100000-0x000000000019E000-memory.dmp
memory/1268-133-0x0000000007610000-0x0000000007BB4000-memory.dmp
memory/1268-134-0x0000000007060000-0x00000000070F2000-memory.dmp
memory/1268-135-0x0000000007100000-0x000000000719C000-memory.dmp
memory/1268-136-0x0000000004C80000-0x0000000004C8A000-memory.dmp
memory/2428-141-0x0000000000401000-0x000000000042F000-memory.dmp
memory/2428-138-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2428-140-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2428-142-0x0000000001340000-0x000000000168A000-memory.dmp
memory/2428-143-0x0000000001310000-0x0000000001320000-memory.dmp
memory/2428-145-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2428-146-0x00000000016C0000-0x00000000016D0000-memory.dmp
memory/2428-148-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2428-149-0x0000000000401000-0x000000000042F000-memory.dmp
memory/3036-144-0x0000000008730000-0x00000000088A4000-memory.dmp
memory/3036-147-0x0000000003410000-0x00000000034E8000-memory.dmp