b609674a18d0d84fe2b6415e25f9e3e6aed7c739e02ec9561bc830395a3f5c85

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 23:10

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General

Target

6647e79f296c5c8386ce082b40347397.exe
Size

16KB
MD5

6647e79f296c5c8386ce082b40347397
SHA1

e4f9a936b665a40253c4e628d618866cbc704f1d
SHA256

b609674a18d0d84fe2b6415e25f9e3e6aed7c739e02ec9561bc830395a3f5c85
SHA512

acddd6436f7d36124c91f2cf80daf6a6cb626adfa0df4ef26dcb5be8b82325e477539a3b3bdbd8ef1a00063bb52d2e78debf7d0a0b6c306fa03f0665415c1cef
SSDEEP

384:8gvo0h8WLrYXI1rImgasnBUho/JzRafP:58zXFOzOzRaf

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\mssrv32.exe	6647e79f296c5c8386ce082b40347397.exe
File opened for modification	\??\c:\windows\SysWOW64\mssrv32.exe	6647e79f296c5c8386ce082b40347397.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2008 set thread context of 2988	2008	6647e79f296c5c8386ce082b40347397.exe	29

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1760	6647e79f296c5c8386ce082b40347397.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 2008	1760	6647e79f296c5c8386ce082b40347397.exe	28
PID 1760 wrote to memory of 2008	1760	6647e79f296c5c8386ce082b40347397.exe	28
PID 1760 wrote to memory of 2008	1760	6647e79f296c5c8386ce082b40347397.exe	28
PID 1760 wrote to memory of 2008	1760	6647e79f296c5c8386ce082b40347397.exe	28
PID 2008 wrote to memory of 2988	2008	6647e79f296c5c8386ce082b40347397.exe	29
PID 2008 wrote to memory of 2988	2008	6647e79f296c5c8386ce082b40347397.exe	29
PID 2008 wrote to memory of 2988	2008	6647e79f296c5c8386ce082b40347397.exe	29
PID 2008 wrote to memory of 2988	2008	6647e79f296c5c8386ce082b40347397.exe	29
PID 2008 wrote to memory of 2988	2008	6647e79f296c5c8386ce082b40347397.exe	29

C:\Users\Admin\AppData\Local\Temp\6647e79f296c5c8386ce082b40347397.exe
"C:\Users\Admin\AppData\Local\Temp\6647e79f296c5c8386ce082b40347397.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1760
- \??\c:\users\admin\appdata\local\temp\6647e79f296c5c8386ce082b40347397.exe
  c:\users\admin\appdata\local\temp\6647e79f296c5c8386ce082b40347397.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    - Sets service image path in registry
    PID:2988

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

Replay Monitor

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Downloads

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

Filesize
16KB

MD5
6647e79f296c5c8386ce082b40347397

SHA1
e4f9a936b665a40253c4e628d618866cbc704f1d

SHA256
b609674a18d0d84fe2b6415e25f9e3e6aed7c739e02ec9561bc830395a3f5c85

SHA512
acddd6436f7d36124c91f2cf80daf6a6cb626adfa0df4ef26dcb5be8b82325e477539a3b3bdbd8ef1a00063bb52d2e78debf7d0a0b6c306fa03f0665415c1cef

Download Submit
memory/1760-0-0x0000000015110000-0x000000001511A2AB-memory.dmp

Filesize
40KB

Download
memory/1760-1-0x0000000015110000-0x000000001511A2AB-memory.dmp

Filesize
40KB

Download
memory/1760-3-0x00000000002A0000-0x00000000002AB000-memory.dmp

Filesize
44KB

Download
memory/1760-13-0x0000000015110000-0x000000001511A2AB-memory.dmp

Filesize
40KB

Download
memory/2008-4-0x0000000015110000-0x000000001511A2AB-memory.dmp

Filesize
40KB

Download
memory/2008-5-0x0000000015110000-0x000000001511A2AB-memory.dmp

Filesize
40KB

Download
memory/2008-10-0x0000000015110000-0x000000001511A2AB-memory.dmp

Filesize
40KB

Download
memory/2988-6-0x0000000015110000-0x000000001511B000-memory.dmp

Filesize
44KB

Download
memory/2988-9-0x0000000000010000-0x0000000000030000-memory.dmp

Filesize
128KB

Download
memory/2988-12-0x0000000015110000-0x000000001511B000-memory.dmp

Filesize
44KB

Download
memory/2988-15-0x0000000015110000-0x000000001511B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads