5a907c82c953724497b8c703c14051f2dcc2002192e18715f9f10e18862eda8b

Analysis

max time kernel
139s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 05:29

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General

Target

1005bd1d763db09f6780f5d298fc089b.exe
Size

27KB
MD5

1005bd1d763db09f6780f5d298fc089b
SHA1

f49b38004fbef779fe6b1bb28d74bc02a664a3fe
SHA256

5a907c82c953724497b8c703c14051f2dcc2002192e18715f9f10e18862eda8b
SHA512

e68b7b3999378d278ae57aad57c47d089a4c486717247e6e97bee9b19878a4f686eebe13121dd4213c5033088c2f968610cf2c4e985e09e0c79ea3e50c59131f
SSDEEP

768:3Up/cZ2HW60/0nnsCCyhkM4nDOAQiICVL6oL:tZ22LsnnFCAJ4y8ICFt

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
1456	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\mssrv32.exe	1005bd1d763db09f6780f5d298fc089b.exe
File opened for modification	\??\c:\windows\SysWOW64\mssrv32.exe	1005bd1d763db09f6780f5d298fc089b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2284 set thread context of 1456	2284	1005bd1d763db09f6780f5d298fc089b.exe	94

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4740	1456	WerFault.exe	94

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1824	1005bd1d763db09f6780f5d298fc089b.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 2284	1824	1005bd1d763db09f6780f5d298fc089b.exe	92
PID 1824 wrote to memory of 2284	1824	1005bd1d763db09f6780f5d298fc089b.exe	92
PID 1824 wrote to memory of 2284	1824	1005bd1d763db09f6780f5d298fc089b.exe	92
PID 2284 wrote to memory of 1456	2284	1005bd1d763db09f6780f5d298fc089b.exe	94
PID 2284 wrote to memory of 1456	2284	1005bd1d763db09f6780f5d298fc089b.exe	94
PID 2284 wrote to memory of 1456	2284	1005bd1d763db09f6780f5d298fc089b.exe	94
PID 2284 wrote to memory of 1456	2284	1005bd1d763db09f6780f5d298fc089b.exe	94

C:\Users\Admin\AppData\Local\Temp\1005bd1d763db09f6780f5d298fc089b.exe
"C:\Users\Admin\AppData\Local\Temp\1005bd1d763db09f6780f5d298fc089b.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1824
- \??\c:\users\admin\appdata\local\temp\1005bd1d763db09f6780f5d298fc089b.exe
  c:\users\admin\appdata\local\temp\1005bd1d763db09f6780f5d298fc089b.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2284
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    - Sets service image path in registry
    - Deletes itself
    PID:1456
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1456 -s 344
      4⤵
      Program crash
      PID:4740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1456 -ip 1456
1⤵
PID:3228

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
27KB

MD5
1005bd1d763db09f6780f5d298fc089b

SHA1
f49b38004fbef779fe6b1bb28d74bc02a664a3fe

SHA256
5a907c82c953724497b8c703c14051f2dcc2002192e18715f9f10e18862eda8b

SHA512
e68b7b3999378d278ae57aad57c47d089a4c486717247e6e97bee9b19878a4f686eebe13121dd4213c5033088c2f968610cf2c4e985e09e0c79ea3e50c59131f

Download Submit
memory/1456-4-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/1456-6-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/1456-8-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/1824-0-0x00000000004E0000-0x00000000004F9000-memory.dmp

Filesize
100KB

Download
memory/1824-1-0x0000000015110000-0x0000000015120000-memory.dmp

Filesize
64KB

Download
memory/1824-5-0x0000000015110000-0x0000000015120000-memory.dmp

Filesize
64KB

Download
memory/2284-3-0x0000000015110000-0x0000000015120000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads