b5239fe3e5b32ab97051aebd5f5401605f42b72b158b4dc744a063863ede9cef

Analysis

max time kernel
0s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 07:29

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General

Target

2d6d25a395fdc5ca6b32593627d6afc9.exe
Size

16KB
MD5

2d6d25a395fdc5ca6b32593627d6afc9
SHA1

8b04637093d0fa7d600556c4437ed4d137f8033d
SHA256

b5239fe3e5b32ab97051aebd5f5401605f42b72b158b4dc744a063863ede9cef
SHA512

1b1e859107dd832f139487087d34d609486d9e1573bfbcb1d0b7fb92e9ad0b6db5a2d55410c73001751e5911cc246bf905a07dbea59ca8f99e17a1b3021e5f06
SSDEEP

384:KwDbVGXKX9898l67YHl0gfUKXpd8rBJSEmhhRW2miIHo3V23mCF:ZGX+9898FFDfpdWuhR+/HW23mC

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2352	ctmon.exe

Loads dropped DLL 1 IoCs

pid	Process
1540	2d6d25a395fdc5ca6b32593627d6afc9.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1540-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/1540-17-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\SysWOW64\ctmon.exe	2d6d25a395fdc5ca6b32593627d6afc9.exe
File opened for modification	C:\WINDOWS\SysWOW64\ctmon.exe	2d6d25a395fdc5ca6b32593627d6afc9.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Runs net.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1540	2d6d25a395fdc5ca6b32593627d6afc9.exe
1540	2d6d25a395fdc5ca6b32593627d6afc9.exe
1540	2d6d25a395fdc5ca6b32593627d6afc9.exe
1540	2d6d25a395fdc5ca6b32593627d6afc9.exe
1540	2d6d25a395fdc5ca6b32593627d6afc9.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1540	2d6d25a395fdc5ca6b32593627d6afc9.exe
1540	2d6d25a395fdc5ca6b32593627d6afc9.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 2352	1540	2d6d25a395fdc5ca6b32593627d6afc9.exe	20
PID 1540 wrote to memory of 2352	1540	2d6d25a395fdc5ca6b32593627d6afc9.exe	20
PID 1540 wrote to memory of 2352	1540	2d6d25a395fdc5ca6b32593627d6afc9.exe	20
PID 1540 wrote to memory of 2352	1540	2d6d25a395fdc5ca6b32593627d6afc9.exe	20
PID 1540 wrote to memory of 2996	1540	2d6d25a395fdc5ca6b32593627d6afc9.exe	19
PID 1540 wrote to memory of 2996	1540	2d6d25a395fdc5ca6b32593627d6afc9.exe	19
PID 1540 wrote to memory of 2996	1540	2d6d25a395fdc5ca6b32593627d6afc9.exe	19
PID 1540 wrote to memory of 2996	1540	2d6d25a395fdc5ca6b32593627d6afc9.exe	19

C:\Users\Admin\AppData\Local\Temp\2d6d25a395fdc5ca6b32593627d6afc9.exe
"C:\Users\Admin\AppData\Local\Temp\2d6d25a395fdc5ca6b32593627d6afc9.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c net stop sharedaccess
  2⤵
  PID:2996
- C:\WINDOWS\SysWOW64\ctmon.exe
  C:\WINDOWS\system32\ctmon.exe
  2⤵
  - Executes dropped EXE
  PID:2352
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\kill.bat""
  2⤵
  PID:2708

C:\Windows\SysWOW64\net.exe
net stop sharedaccess
1⤵
PID:2964
- C:\Windows\SysWOW64\net1.exe
  C:\Windows\system32\net1 stop sharedaccess
  2⤵
  PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1540-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1540-17-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download