a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92

Analysis

max time kernel
23s
max time network
14s
platform
windows7_x64
resource
win7-en-20211208
submitted
16/01/2022, 21:35

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General

Target
a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92.exe
Size 27KB
Sample220116-1fs8fsgder
SHA256 a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92
MD5 5d5c99a08a7d927346ca2dafa7973fc1
SHA1 189166d382c73c242ba45889d57980548d4ba37e
SHA512 ece2ac87f5b80dc43ac68f766eee16be6f8cd3b1c6535c741551d0637c72c712e9f7de080e6fa612b321b9e9eab90922995bba5486debefbbb6e21104a80442d
MD5 SHA1 SHA512

Score

6^/10

bootkit persistence

Malware Config

Signatures

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1204	1352	WerFault.exe	26

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1204	WerFault.exe
1204	WerFault.exe
1204	WerFault.exe
1204	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1204	WerFault.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1352 wrote to memory of 1204	1352	a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92.exe	27
PID 1352 wrote to memory of 1204	1352	a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92.exe	27
PID 1352 wrote to memory of 1204	1352	a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92.exe	27
PID 1352 wrote to memory of 1204	1352	a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92.exe	27

C:\Users\Admin\AppData\Local\Temp\a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92.exe
"C:\Users\Admin\AppData\Local\Temp\a196c6b8ffcb97ffb276d04f354696e2391311db3841ae16c8c9f56f36a38e92.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:1352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1352 -s 64
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1204

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1204-54-0x0000000075CE1000-0x0000000075CE3000-memory.dmp

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memory/1204-55-0x0000000001EC0000-0x0000000001EC1000-memory.dmp

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