c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70

Analysis

max time kernel
60s
max time network
31s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 20:43

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General

Target

c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Size

532KB
MD5

5add16bad399367a797077a9b4e8f05e
SHA1

72c2a88f0888ffba938641b20034848aaee5f61d
SHA256

c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70
SHA512

2870f810777d5b25999b6b0ebe3cda2c13d0e6254d97350d21ab7c73526950cb6de1d74f994b6b779975abe55e2439c3e315798d891e47652c4370e66b7092d0
SSDEEP

12288:9E4Zlkz9u7YmKpRJmqzV/GwcLQo3wkZC/:9Eglkz9u7YFRwqp/GwaQkwp

Score

7^/10

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
668	1152	WerFault.exe	12

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\Assembly = "Microsoft.Vbe.Interop, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C"	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\14.0.0.0	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\14.0.0.0\Assembly = "Microsoft.Vbe.Interop, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C"	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\14.0.0.0\RuntimeVersion = "v2.0.50727"	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\Class = "Microsoft.Vbe.Interop.LinkedWindowsClass"	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\RuntimeVersion = "v2.0.50727"	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\14.0.0.0\Class = "Microsoft.Vbe.Interop.LinkedWindowsClass"	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1152	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Token: SeIncBasePriorityPrivilege	1152	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 668	1152	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe	28
PID 1152 wrote to memory of 668	1152	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe	28
PID 1152 wrote to memory of 668	1152	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe	28
PID 1152 wrote to memory of 668	1152	c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe	28

C:\Users\Admin\AppData\Local\Temp\c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
"C:\Users\Admin\AppData\Local\Temp\c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe"
1⤵
- Checks BIOS information in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1152 -s 476
  2⤵
  - Program crash
  PID:668

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

memory/1152-54-0x0000000075881000-0x0000000075883000-memory.dmp

Filesize
8KB

Download
memory/1152-55-0x0000000000220000-0x000000000026C000-memory.dmp

Filesize
304KB

Download
memory/1152-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1152-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download