123b2825882b30a3118e63934c16ffb65a927906d6f3f6bbf3e61af824b37172

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/12/2023, 19:25

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General

Target

01a823460418a1d5a0cd5997fe965efc.exe
Size

20KB
MD5

01a823460418a1d5a0cd5997fe965efc
SHA1

5da6a505868fb3c389f24add492ca2a8c51f0996
SHA256

123b2825882b30a3118e63934c16ffb65a927906d6f3f6bbf3e61af824b37172
SHA512

d7b28364eb2ac003f05936215f795a5dc6ecbcc2d95fe6848380adca5bdf0dea06dd5cf5efe3c91bd461ce28ad44dc5a9b5b2d33e65cc60d1e5e484a0a0f9551
SSDEEP

384:xzHmhwJr+qaSXvDXPxa9TwK2usg3D1360rkb8Ex4f8nM:vxJdGTX5Ex4fZ

Score

6^/10

bootkit persistence

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2764	2728	WerFault.exe	28

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

T1542.003

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2444 set thread context of 2728	2444	01a823460418a1d5a0cd5997fe965efc.exe	28

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2728	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2444	01a823460418a1d5a0cd5997fe965efc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 2728	2444	01a823460418a1d5a0cd5997fe965efc.exe	28
PID 2444 wrote to memory of 2728	2444	01a823460418a1d5a0cd5997fe965efc.exe	28
PID 2444 wrote to memory of 2728	2444	01a823460418a1d5a0cd5997fe965efc.exe	28
PID 2444 wrote to memory of 2728	2444	01a823460418a1d5a0cd5997fe965efc.exe	28
PID 2444 wrote to memory of 2728	2444	01a823460418a1d5a0cd5997fe965efc.exe	28
PID 2444 wrote to memory of 2728	2444	01a823460418a1d5a0cd5997fe965efc.exe	28
PID 2444 wrote to memory of 2728	2444	01a823460418a1d5a0cd5997fe965efc.exe	28
PID 2444 wrote to memory of 2728	2444	01a823460418a1d5a0cd5997fe965efc.exe	28
PID 2728 wrote to memory of 2764	2728	IEXPLORE.EXE	29
PID 2728 wrote to memory of 2764	2728	IEXPLORE.EXE	29
PID 2728 wrote to memory of 2764	2728	IEXPLORE.EXE	29
PID 2728 wrote to memory of 2764	2728	IEXPLORE.EXE	29

C:\Users\Admin\AppData\Local\Temp\01a823460418a1d5a0cd5997fe965efc.exe
"C:\Users\Admin\AppData\Local\Temp\01a823460418a1d5a0cd5997fe965efc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444
- 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:2728
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 156
    3⤵
    - Program crash
    PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2444-0-0x0000000014140000-0x0000000014149000-memory.dmp

Filesize
36KB

Download
memory/2444-1-0x0000000014140000-0x0000000014149000-memory.dmp

Filesize
36KB

Download
memory/2728-2-0x0000000013140000-0x00000000131E8000-memory.dmp

Filesize
672KB

Download