ae1010e51f7e7838d20f1d3ff6ef8e883e71ade7be86603e842aabe219c3b9df

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 08:36

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General

Target

debc8ecc41377405e178dd8d3ad95500.exe
Size

47KB
MD5

debc8ecc41377405e178dd8d3ad95500
SHA1

74e0dd61d858ec1a710263f64faa99a459f48702
SHA256

ae1010e51f7e7838d20f1d3ff6ef8e883e71ade7be86603e842aabe219c3b9df
SHA512

6cf365f9ba9ca3d02594fc7270c3ffc96980c7c0bbc1274bae3e1717c712f9fa0dbf06511c2325a0a3bb1e5037f785a19b2a71ddf3ae9a54fbe7c78c6bf1067b
SSDEEP

768:7NdFUnASASKRloop4p1amBLT0XLMEIfWf4PL7cOaJ/wK3bNGSxPENl8zfpn:5dmAHLLp4pZALBGc4Pe4exPC

Score

8^/10

persistence upx

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

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2224-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/memory/2364-5-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/files/0x000a000000012254-12.dat	upx
behavioral1/memory/2224-14-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\mssrv32.exe	debc8ecc41377405e178dd8d3ad95500.exe
File opened for modification	\??\c:\windows\SysWOW64\mssrv32.exe	debc8ecc41377405e178dd8d3ad95500.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2364 set thread context of 2272	2364	debc8ecc41377405e178dd8d3ad95500.exe	29

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2224	debc8ecc41377405e178dd8d3ad95500.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2364	2224	debc8ecc41377405e178dd8d3ad95500.exe	28
PID 2224 wrote to memory of 2364	2224	debc8ecc41377405e178dd8d3ad95500.exe	28
PID 2224 wrote to memory of 2364	2224	debc8ecc41377405e178dd8d3ad95500.exe	28
PID 2224 wrote to memory of 2364	2224	debc8ecc41377405e178dd8d3ad95500.exe	28
PID 2364 wrote to memory of 2272	2364	debc8ecc41377405e178dd8d3ad95500.exe	29
PID 2364 wrote to memory of 2272	2364	debc8ecc41377405e178dd8d3ad95500.exe	29
PID 2364 wrote to memory of 2272	2364	debc8ecc41377405e178dd8d3ad95500.exe	29
PID 2364 wrote to memory of 2272	2364	debc8ecc41377405e178dd8d3ad95500.exe	29
PID 2364 wrote to memory of 2272	2364	debc8ecc41377405e178dd8d3ad95500.exe	29

C:\Users\Admin\AppData\Local\Temp\debc8ecc41377405e178dd8d3ad95500.exe
"C:\Users\Admin\AppData\Local\Temp\debc8ecc41377405e178dd8d3ad95500.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2224
- \??\c:\users\admin\appdata\local\temp\debc8ecc41377405e178dd8d3ad95500.exe
  c:\users\admin\appdata\local\temp\debc8ecc41377405e178dd8d3ad95500.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    - Sets service image path in registry
    PID:2272

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
47KB

MD5
debc8ecc41377405e178dd8d3ad95500

SHA1
74e0dd61d858ec1a710263f64faa99a459f48702

SHA256
ae1010e51f7e7838d20f1d3ff6ef8e883e71ade7be86603e842aabe219c3b9df

SHA512
6cf365f9ba9ca3d02594fc7270c3ffc96980c7c0bbc1274bae3e1717c712f9fa0dbf06511c2325a0a3bb1e5037f785a19b2a71ddf3ae9a54fbe7c78c6bf1067b

Download Submit
memory/2224-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2224-1-0x00000000003C0000-0x00000000003C2000-memory.dmp

Filesize
8KB

Download
memory/2224-2-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/2224-3-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/2224-14-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2224-15-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/2272-13-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/2272-17-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download
memory/2364-5-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2364-7-0x0000000015110000-0x0000000015119000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads