6e431c7aee915cce561fe3aed14986d8896bd896c6293a3cfddf833cc0e75e22

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 14:43

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General

Target

9766e7ddc378b7065a9e65358e33eb8a.exe
Size

19KB
MD5

9766e7ddc378b7065a9e65358e33eb8a
SHA1

786eb85a966bd54e5ecceaf00e30d99acbe7f79c
SHA256

6e431c7aee915cce561fe3aed14986d8896bd896c6293a3cfddf833cc0e75e22
SHA512

f07c7e1ad785d396792ee37271ca563f68baee894130028b33f0e1fa04acb613639aa5646dbe5f6c533ec228d5b651520aef29697dac295c7905e181c043979f
SSDEEP

384:5HELvrNTsqTmmFCe46gI5xVtv4i6zz1NzzV6qZ9zhYQoW9:5HKvBbTmmAe9xV5j6FNzz3zhYQ

Score

8^/10

persistence

Malware Config

Signatures

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\msupdate\ImagePath = "c:\\windows\\system32\\mssrv32.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1480	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\SysWOW64\mssrv32.exe	9766e7ddc378b7065a9e65358e33eb8a.exe
File created	\??\c:\windows\SysWOW64\mssrv32.exe	9766e7ddc378b7065a9e65358e33eb8a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 772 set thread context of 1480	772	9766e7ddc378b7065a9e65358e33eb8a.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1388	1480	WerFault.exe	85

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	9766e7ddc378b7065a9e65358e33eb8a.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 772	3056	9766e7ddc378b7065a9e65358e33eb8a.exe	84
PID 3056 wrote to memory of 772	3056	9766e7ddc378b7065a9e65358e33eb8a.exe	84
PID 3056 wrote to memory of 772	3056	9766e7ddc378b7065a9e65358e33eb8a.exe	84
PID 772 wrote to memory of 1480	772	9766e7ddc378b7065a9e65358e33eb8a.exe	85
PID 772 wrote to memory of 1480	772	9766e7ddc378b7065a9e65358e33eb8a.exe	85
PID 772 wrote to memory of 1480	772	9766e7ddc378b7065a9e65358e33eb8a.exe	85
PID 772 wrote to memory of 1480	772	9766e7ddc378b7065a9e65358e33eb8a.exe	85

C:\Users\Admin\AppData\Local\Temp\9766e7ddc378b7065a9e65358e33eb8a.exe
"C:\Users\Admin\AppData\Local\Temp\9766e7ddc378b7065a9e65358e33eb8a.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3056
- \??\c:\users\admin\appdata\local\temp\9766e7ddc378b7065a9e65358e33eb8a.exe
  c:\users\admin\appdata\local\temp\9766e7ddc378b7065a9e65358e33eb8a.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:772
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    - Sets service image path in registry
    - Deletes itself
    PID:1480
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1480 -s 348
      4⤵
      Program crash
      PID:1388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1480 -ip 1480
1⤵
PID:4496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\windows\SysWOW64\mssrv32.exe

Filesize
19KB

MD5
9766e7ddc378b7065a9e65358e33eb8a

SHA1
786eb85a966bd54e5ecceaf00e30d99acbe7f79c

SHA256
6e431c7aee915cce561fe3aed14986d8896bd896c6293a3cfddf833cc0e75e22

SHA512
f07c7e1ad785d396792ee37271ca563f68baee894130028b33f0e1fa04acb613639aa5646dbe5f6c533ec228d5b651520aef29697dac295c7905e181c043979f

Download Submit
memory/772-5-0x0000000013110000-0x0000000013120000-memory.dmp

Filesize
64KB

Download
memory/772-4-0x0000000000410000-0x0000000000425000-memory.dmp

Filesize
84KB

Download
memory/772-6-0x0000000015110000-0x000000001511A000-memory.dmp

Filesize
40KB

Download
memory/772-8-0x0000000013110000-0x0000000013120000-memory.dmp

Filesize
64KB

Download
memory/1480-7-0x0000000015110000-0x000000001511A000-memory.dmp

Filesize
40KB

Download
memory/1480-11-0x0000000015110000-0x000000001511A000-memory.dmp

Filesize
40KB

Download
memory/3056-0-0x0000000000710000-0x0000000000725000-memory.dmp

Filesize
84KB

Download
memory/3056-1-0x0000000013110000-0x0000000013120000-memory.dmp

Filesize
64KB

Download
memory/3056-2-0x0000000015110000-0x000000001511A000-memory.dmp

Filesize
40KB

Download
memory/3056-9-0x0000000015110000-0x000000001511A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads