e0e00cdc8131a6cb50c336eb05dbc4d7f47a6a77aaad73b2ed869d2fc93abe40

Analysis

max time kernel
146s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
08/11/2022, 09:46

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General

Target
file.exe
Size 936KB
Sample221108-lrmsgscbgl
SHA256 e0e00cdc8131a6cb50c336eb05dbc4d7f47a6a77aaad73b2ed869d2fc93abe40
MD5 a7763f2e09e1ad781b906f652c633250
SHA1 f6bfdfcef1d4896b5e7065fa37904ba912263b5a
SHA512 05765d6a4db836c12c396b2858882db1e9a89ef82724b0e1d2584a0b81a9ec9d6f3524b1d2100d3a7a1c0dd67b1a2583af79ab9453b280397a6977f07209f59d
SSDEEP 3072:8YXeEmQ9g+bsYYFveTvux6IhOtTs5Ri/Wzs8zZbnDvJ2qlGqG111JvXy0RhPZKwI:8YXbxhGvDLzthLJ2qlS11dX7Q3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5040	1624	rundll32.exe	61

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	file.exe

Loads dropped DLL 1 IoCs

pid	Process
856	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4904	856	WerFault.exe	84

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 4080	1728	file.exe	81
PID 1728 wrote to memory of 4080	1728	file.exe	81
PID 1728 wrote to memory of 4080	1728	file.exe	81
PID 5040 wrote to memory of 856	5040	rundll32.exe	84
PID 5040 wrote to memory of 856	5040	rundll32.exe	84
PID 5040 wrote to memory of 856	5040	rundll32.exe	84

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe" -q
  2⤵
  PID:4080

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
  2⤵
  - Loads dropped DLL
  PID:856
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 600
    3⤵
    - Program crash
    PID:4904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 856 -ip 856
1⤵
PID:2096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

db.dat

Path C:\Users\Admin\AppData\Local\Temp\db.dat
Size 557KB
SHA256 ba07f9487a10ed278772d9571d6e867f53338029a3c4580eed2e08d8f5a8f9bd
MD5 45ceed48afd68359f317952e8845ea02
SHA1 0149982c8c5a90616c3392974b1a543eb2b4e894
SHA512 c41645620e26ece7bf044c7a7a8d43383e87a07baae20596d7e01a609d403396fc1993647724185b066e48d9b7f7bddca8913c838dfa56916de7dbd27b9bd4cf
SSDEEP 12288:+V1e0UgkVT6ZT+3JCnoxgLYImxuCXwbePLJrH8fwpA4SG:+V1edgkV8T0CnoxNf4ePLJTMwpAA
MD5 SHA1 SHA512 SSDEEP

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db.dll

Path C:\Users\Admin\AppData\Local\Temp\db.dll
Size 52KB
SHA256 3d73e4425bb7294f20ef86096504ab96d288bd70d2bc6a8361b629903f3b1d01
MD5 845a5f94673e266f80fae41538a94db1
SHA1 a8ed5ba958b94eb55a44f20a4791a58b76e91f0c
SHA512 f01450a61a6b2daec92fab31c9f153c76574f169f3fef2c6d0cf9283cf730a099c9b7c0cbc4ac44cc4d3c067565a49b8135aa85b745ea340a9d5f8c9dc5c3f81
SSDEEP 768:SJZtqsi21F/i//PzxH08AZhEZYamtVtBFw8:SRD89H087CtBW8
MD5 SHA1 SHA512 SSDEEP

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db.dll

Path C:\Users\Admin\AppData\Local\Temp\db.dll
Size 52KB
SHA256 3d73e4425bb7294f20ef86096504ab96d288bd70d2bc6a8361b629903f3b1d01
MD5 845a5f94673e266f80fae41538a94db1
SHA1 a8ed5ba958b94eb55a44f20a4791a58b76e91f0c
SHA512 f01450a61a6b2daec92fab31c9f153c76574f169f3fef2c6d0cf9283cf730a099c9b7c0cbc4ac44cc4d3c067565a49b8135aa85b745ea340a9d5f8c9dc5c3f81
SSDEEP 768:SJZtqsi21F/i//PzxH08AZhEZYamtVtBFw8:SRD89H087CtBW8
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads