Analysis
- max time kernel
151s - max time network
157s - platform
windows7_x64 - resource
win7-20220901-en - resource tags
- submitted
20/10/2022, 13:02
General
- Target RMTT Documentation-REF GZARX019-10-22.exe
- Size 338KB
- Sample221020-p9r2psegh2
- SHA256 bb596a4d943381a7c56efa450df660f6707d317b806d715eac72a62100ea9832
Malware Config
Extracted
-
formbook
-
pfgc
-
hBGNx7LOg1/1V9He6Lr1odiL8A==
-
JUtMWPUI+jYE3h2D0VXJrkViyWlklw==
-
9Onb+iNxE//TbnVsww==
-
+zlULMoiC8l+8Tev2wK6Xpt3qkQ2
-
vv/ckxYzTsV3W3KwMKjDf1rK+A==
-
fiNtn8AUmEDcSGooP0OzpNX0
-
Vo+DIT5uE/PEbnVsww==
-
JzMzXJDojoBk5EcxFTKznOD+
-
hxRyvNTzW6eTCQ==
-
/CcTv23E93dcQXf9RUb+
-
n6ODTfEg31QE9F0=
-
V9k3j8Pew4FJqasspfOBQNk=
-
mq+vfSOVMzCmhwN1wUeUUME41Pw=
-
1frRhiXBVRSqDTLo46vXXNc=
-
WP9xcxRKdPLGtCeZ8VMcCsA=
-
dIBJ53JHoTO5
-
tlakzPSKiYl02hJYqJQdC8I=
-
EiPtnEnwhz/bMaJp+a0cj8g=
-
s7mOSbbN8GbPM3von61MR8E41Pw=
-
HFhN1/bX7Umz
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 2 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious behavior: MapViewOfSection 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RMTT Documentation-REF GZARX019-10-22.exe"C:\Users\Admin\AppData\Local\Temp\RMTT Documentation-REF GZARX019-10-22.exe"2⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RMTT Documentation-REF GZARX019-10-22.exe"C:\Users\Admin\AppData\Local\Temp\RMTT Documentation-REF GZARX019-10-22.exe"3⤵
- Checks QEMU agent file
- Checks computer location settings
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Windows\SysWOW64\svchost.exe"C:\Windows\SysWOW64\svchost.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
sqlite3.dll
memory/764-93-0x0000000000080000-0x00000000000AD000-memory.dmp
memory/764-91-0x00000000004E0000-0x000000000056F000-memory.dmp
memory/764-90-0x0000000000A10000-0x0000000000D13000-memory.dmp
memory/764-89-0x0000000000080000-0x00000000000AD000-memory.dmp
memory/764-88-0x0000000000A00000-0x0000000000A08000-memory.dmp
memory/824-76-0x000000001D3A0000-0x000000001D3B0000-memory.dmp
memory/824-81-0x0000000000070000-0x0000000000080000-memory.dmp
memory/824-62-0x0000000000400000-0x0000000001462000-memory.dmp
memory/824-68-0x00000000001C0000-0x00000000002C0000-memory.dmp
memory/824-69-0x0000000076DC0000-0x0000000076F69000-memory.dmp
memory/824-72-0x0000000000400000-0x0000000001462000-memory.dmp
memory/824-73-0x0000000000401000-0x0000000001462000-memory.dmp
memory/824-74-0x0000000000400000-0x0000000001462000-memory.dmp
memory/824-87-0x00000000001C0000-0x00000000002C0000-memory.dmp
memory/824-86-0x0000000000400000-0x0000000001462000-memory.dmp
memory/824-75-0x000000001D540000-0x000000001D843000-memory.dmp
memory/824-85-0x0000000076FA0000-0x0000000077120000-memory.dmp
memory/824-79-0x0000000076DC0000-0x0000000076F69000-memory.dmp
memory/824-80-0x0000000000401000-0x0000000001462000-memory.dmp
memory/824-65-0x00000000001C0000-0x00000000002C0000-memory.dmp
memory/824-83-0x0000000076FA0000-0x0000000077120000-memory.dmp
memory/1280-77-0x0000000004B70000-0x0000000004C46000-memory.dmp
memory/1280-96-0x0000000003D50000-0x0000000003DFF000-memory.dmp
memory/1280-92-0x0000000003D50000-0x0000000003DFF000-memory.dmp
memory/1280-82-0x0000000006E50000-0x0000000006FE5000-memory.dmp
memory/1700-54-0x0000000074E41000-0x0000000074E43000-memory.dmp
memory/1700-63-0x0000000076FA0000-0x0000000077120000-memory.dmp
memory/1700-67-0x0000000076FA0000-0x0000000077120000-memory.dmp
memory/1700-66-0x0000000076FA0000-0x0000000077120000-memory.dmp
memory/1700-58-0x0000000076DC0000-0x0000000076F69000-memory.dmp
memory/1700-78-0x0000000076FA0000-0x0000000077120000-memory.dmp
memory/1700-57-0x00000000026C0000-0x000000000330A000-memory.dmp
memory/1700-56-0x00000000026C0000-0x000000000330A000-memory.dmp
memory/1700-64-0x0000000076FA0000-0x0000000077120000-memory.dmp