d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773

General

Target

d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe
Size

21KB
MD5

fb0a226376d060173dea88a60f19661b
SHA1

331cc3e10b234ff4b27b9a19cd76516fab3043eb
SHA256

d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773
SHA512

e4d978c8f88db943c5602fda998f93ba3d09a6169e7e9f39bd025d86dd21ab985492787e741c5ab207af2c33e988f75f8e7e190d59fb25b8be152dccd550fe88

Score

6^/10

bootkit persistence

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1012 1100 WerFault.exe IEXPLORE.EXE
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

Processes:

IEXPLORE.EXE

description ioc process

File opened for modification \??\PhysicalDrive0 IEXPLORE.EXE

pid	pid_target	process	target process
1012	1100	WerFault.exe	IEXPLORE.EXE

description	ioc	process
File opened for modification	\??\PhysicalDrive0	IEXPLORE.EXE

Suspicious use of SetThreadContext 1 IoCs

Processes:

d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe

description	pid	process	target process
PID 2024 set thread context of 1100	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

IEXPLORE.EXE

pid process

1100 IEXPLORE.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe

description pid process

Token: SeIncBasePriorityPrivilege 2024 d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe

pid	process
1100	IEXPLORE.EXE

description	pid	process
Token: SeIncBasePriorityPrivilege	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exeIEXPLORE.EXE

description	pid	process	target process
PID 2024 wrote to memory of 1100	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe	IEXPLORE.EXE
PID 2024 wrote to memory of 1100	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe	IEXPLORE.EXE
PID 2024 wrote to memory of 1100	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe	IEXPLORE.EXE
PID 2024 wrote to memory of 1100	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe	IEXPLORE.EXE
PID 2024 wrote to memory of 1100	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe	IEXPLORE.EXE
PID 2024 wrote to memory of 1100	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe	IEXPLORE.EXE
PID 2024 wrote to memory of 1100	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe	IEXPLORE.EXE
PID 2024 wrote to memory of 1100	2024	d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe	IEXPLORE.EXE
PID 1100 wrote to memory of 1012	1100	IEXPLORE.EXE	WerFault.exe
PID 1100 wrote to memory of 1012	1100	IEXPLORE.EXE	WerFault.exe
PID 1100 wrote to memory of 1012	1100	IEXPLORE.EXE	WerFault.exe
PID 1100 wrote to memory of 1012	1100	IEXPLORE.EXE	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe
"C:\Users\Admin\AppData\Local\Temp\d64cd968677e2d02f1f11edd05d56994eafb6d9687d6e0aa5b98718e24f8c773.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2024

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"
2⤵
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1100 -s 156
3⤵
- Program crash
PID:1012

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1012-54-0x0000000000000000-mapping.dmp

Download
memory/2024-55-0x0000000014140000-0x0000000014149000-memory.dmp

Filesize
36KB

Download

Analysis

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