a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce

Analysis

max time kernel
20s
max time network
47s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-12-2022 22:55

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General

Target

a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe
Size

319KB
MD5

5af24c5b9fa96810ed9ce8b8e170d501
SHA1

b97d57183371de3c901586f8f07a73ada687ffa9
SHA256

a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce
SHA512

e1526d170964ef09e029b1346386b551d15a26862f059b51a8ae802e1a95251d9dd4074b41d45f557af0483a51c8183a36bd79cc0da1b2a2319f0709dc772ea4
SSDEEP

6144:pYz2w+pCCTuiHOyfTGWWjRSwnVW5GJZ2tNYLj8MfscYTbUZj9ZwR+CSsyC:pYTACouoxfilVzYKj86sZ4JySsyC

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	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2004 set thread context of 272	2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe	28

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 272	2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe	28
PID 2004 wrote to memory of 272	2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe	28
PID 2004 wrote to memory of 272	2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe	28
PID 2004 wrote to memory of 272	2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe	28
PID 2004 wrote to memory of 272	2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe	28
PID 2004 wrote to memory of 272	2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe	28
PID 2004 wrote to memory of 272	2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe	28
PID 2004 wrote to memory of 272	2004	a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe	28

C:\Users\Admin\AppData\Local\Temp\a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe
"C:\Users\Admin\AppData\Local\Temp\a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Users\Admin\AppData\Local\Temp\a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe
  "C:\Users\Admin\AppData\Local\Temp\a85dea78153d5421a2e8c382cb12e60b1a045f2e8a59e3d1ecd3c2a6d578edce.exe"
  2⤵
  PID:272

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/272-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/272-58-0x0000000000407C89-mapping.dmp

Download
memory/272-62-0x0000000000400000-0x0000000000408960-memory.dmp

Filesize
34KB

Download
memory/272-63-0x0000000075811000-0x0000000075813000-memory.dmp

Filesize
8KB

Download
memory/272-64-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/2004-54-0x0000000000400000-0x0000000000509000-memory.dmp

Filesize
1.0MB

Download
memory/2004-60-0x0000000000400000-0x0000000000509000-memory.dmp

Filesize
1.0MB

Download
memory/2004-61-0x00000000006C0000-0x00000000006C9000-memory.dmp

Filesize
36KB

Download