Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
24/10/2022, 17:39
General
- Target OCEAN GEMSTONE - VSL PARTICULARS.exe
- Size 467KB
- Sample221024-v79rmahhdj
- SHA256 f682321268a01d4d9bdf0e5bb399a0bae6f414c9a2df33e78bcbd06883b652e3
Malware Config
Extracted
-
formbook
-
ermr
-
ErOK6LFCgNIAlQmH54oaYOL/CN29Z78=
-
qNSdDhu/PT/1fgafDagiCSZH1SY=
-
wLpPOAkYS8EABl3pHGc4hNT/Q1sHBrU=
-
jSxRvptHkeTGl7PT0SEmaZmjqzanuA==
-
b91oL+2wCcpyhnd6yvF6Pg==
-
mr81yp1/qqZX
-
hy7Xsz/PU/LWHMcGL4UYJx9n3A==
-
KlwrHt1gouPaXaWhoQ==
-
ng8M320IRJL9Ptw=
-
8GQbOXuaWxvKnNM=
-
XndOL7E5sNpVUNty4d/a
-
rryPBBC8PybYb+2h2MF3FHGL
-
kEoeyERSVCYO0g==
-
5/P+SBDby5hO
-
1fYXc30/h9W7iO17
-
34X+YKR+wRFE
-
8ir/X2MlVByh5lQ1ow8=
-
u9ikm2UMZ7J7hpCYow==
-
FLI+c3clp1BNDjVAfvC2Dnw=
-
t21Erq8/r09wAzAJTAH3Ng==
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.
- Adds Run key to start application 2 TTPs 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Drops file in Program Files directory 1 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\OCEAN GEMSTONE - VSL PARTICULARS.exe"C:\Users\Admin\AppData\Local\Temp\OCEAN GEMSTONE - VSL PARTICULARS.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\OCEAN GEMSTONE - VSL PARTICULARS.exe"C:\Users\Admin\AppData\Local\Temp\OCEAN GEMSTONE - VSL PARTICULARS.exe"3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Windows\SysWOW64\wlanext.exe"C:\Windows\SysWOW64\wlanext.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\OCEAN GEMSTONE - VSL PARTICULARS.exe"3⤵
-
-
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
memory/388-132-0x0000000000130000-0x00000000001AA000-memory.dmp
memory/388-133-0x0000000005090000-0x0000000005634000-memory.dmp
memory/2292-145-0x00000000013D0000-0x000000000171A000-memory.dmp
memory/2292-142-0x0000000000C00000-0x0000000000C17000-memory.dmp
memory/2292-148-0x00000000009A0000-0x00000000009CD000-memory.dmp
memory/2292-146-0x0000000001100000-0x0000000001190000-memory.dmp
memory/2292-143-0x00000000009A0000-0x00000000009CD000-memory.dmp
memory/2576-139-0x0000000001360000-0x0000000001371000-memory.dmp
memory/2576-135-0x0000000000400000-0x000000000042D000-memory.dmp
memory/2576-138-0x00000000013F0000-0x000000000173A000-memory.dmp
memory/2576-137-0x0000000000400000-0x000000000042D000-memory.dmp
memory/2724-140-0x0000000002D00000-0x0000000002E58000-memory.dmp
memory/2724-147-0x0000000007C30000-0x0000000007D4C000-memory.dmp
memory/2724-149-0x0000000007C30000-0x0000000007D4C000-memory.dmp