Analysis
- max time kernel
91s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
16/11/2022, 09:38
General
- Target 078aa4cb8d8a3ab887ed8539b0d6c580.exe
- Size 785KB
- Sample221116-ll2z8aea21
- SHA256 dbce03f15432cc04590885ae7e6a8397a210ffd4848e792c467dd2329a3a666c
Malware Config
Extracted
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formbook
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pgnt
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0WG18LbM4lR9iqMRa4nlBzTb
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jcfGYzPgZTqFZVO9FV2yIw==
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laIfrdSC8/4CNg==
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Q73ilev5GIWuOrAAFV2yIw==
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Q2u/pMw7pv4sPA==
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TbqvIUHwlQscPo0HFV2yIw==
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8PNWfGPyE8n0IQ==
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WtgROxXzvY2L
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PryaRBNjm4eP
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Y9Hdi06Cry1um9Sj68YAu1o=
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3Gulyp7CMQtR78jvLkk=
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JJ3GasTVTCRQT6Tfz6S6GlI=
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RnS42bhb9tI0R6UpD6wOxriNxw==
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he1mi2sOGfzTRGHnuA==
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eaYjCtjxVjdU5XLRtBMBLKk9quA=
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k9rTeEqYzzw8WaTfz6S6GlI=
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5luVQwe2vJWKEAiMdF4=
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MGW14L9OVk5Y5TaR6w/DqdhYxXVY
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mAsYz6k6sQkDC0/DoHj9t1RPWLSgFQ==
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y5klhuMbE8n0IQ==
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 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\078aa4cb8d8a3ab887ed8539b0d6c580.exe"C:\Users\Admin\AppData\Local\Temp\078aa4cb8d8a3ab887ed8539b0d6c580.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wlctOUHJjvnKU.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wlctOUHJjvnKU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA96F.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\078aa4cb8d8a3ab887ed8539b0d6c580.exe"C:\Users\Admin\AppData\Local\Temp\078aa4cb8d8a3ab887ed8539b0d6c580.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmpA96F.tmp
memory/2440-150-0x0000000001010000-0x000000000135A000-memory.dmp
memory/2440-146-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2440-149-0x0000000000401000-0x000000000042F000-memory.dmp
memory/2440-143-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4648-151-0x0000000005D50000-0x0000000005D6E000-memory.dmp
memory/4648-141-0x0000000004F40000-0x0000000005568000-memory.dmp
memory/4648-139-0x0000000004770000-0x00000000047A6000-memory.dmp
memory/4648-161-0x0000000007370000-0x0000000007378000-memory.dmp
memory/4648-145-0x0000000004C70000-0x0000000004C92000-memory.dmp
memory/4648-147-0x0000000004E90000-0x0000000004EF6000-memory.dmp
memory/4648-160-0x0000000007390000-0x00000000073AA000-memory.dmp
memory/4648-148-0x00000000056E0000-0x0000000005746000-memory.dmp
memory/4648-159-0x0000000007280000-0x000000000728E000-memory.dmp
memory/4648-158-0x00000000072D0000-0x0000000007366000-memory.dmp
memory/4648-157-0x00000000070C0000-0x00000000070CA000-memory.dmp
memory/4648-152-0x0000000006D10000-0x0000000006D42000-memory.dmp
memory/4648-153-0x0000000071240000-0x000000007128C000-memory.dmp
memory/4648-154-0x00000000062B0000-0x00000000062CE000-memory.dmp
memory/4648-155-0x00000000076A0000-0x0000000007D1A000-memory.dmp
memory/4648-156-0x0000000007050000-0x000000000706A000-memory.dmp
memory/5036-132-0x0000000000DA0000-0x0000000000E6A000-memory.dmp
memory/5036-133-0x0000000005D90000-0x0000000006334000-memory.dmp
memory/5036-134-0x0000000005880000-0x0000000005912000-memory.dmp
memory/5036-135-0x0000000005810000-0x000000000581A000-memory.dmp
memory/5036-136-0x0000000009480000-0x000000000951C000-memory.dmp