3e3dd3613d3a80d79c28de23eae0acb6a9a82ad8e833162526fb07179223b994

Analysis

max time kernel
132s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
12/05/2024, 21:14

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

3e3dd3613d3a80d79c28de23eae0acb6a9a82ad8e833162526fb07179223b994.dll
Size

503KB
MD5

a70594e2124ca4f52cfb257d6fa4700f
SHA1

30fb6befbdf90cf6dcca1bf74b4c0a41ca40fd35
SHA256

3e3dd3613d3a80d79c28de23eae0acb6a9a82ad8e833162526fb07179223b994
SHA512

1986bb8bce229dd6dbc3774d1822e2f9544729d564813d7ea8bf18901bdf2c1236180dcb1c6dfce4129f447da7f8495ead4c243e39328900cfa9635057aaa0b1
SSDEEP

12288:uBMeuqF7Ev7bKeTIfX4ArBaA5q9vonshR+ermBzTBjvrEH7ut:R5U7Ev7brIgAdaAConshRsBzJrEH7u

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023435-1.dat	UPX
behavioral2/memory/3552-4-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral2/memory/3552-10-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0009000000023435-1.dat	acprotect

Loads dropped DLL 3 IoCs

pid	Process
3552	rundll32.exe
900	WerFault.exe
3248	WerFault.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023435-1.dat	upx
behavioral2/memory/3552-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3552-10-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3248	3552	WerFault.exe	83

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3552	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 3552	1868	rundll32.exe	83
PID 1868 wrote to memory of 3552	1868	rundll32.exe	83
PID 1868 wrote to memory of 3552	1868	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3e3dd3613d3a80d79c28de23eae0acb6a9a82ad8e833162526fb07179223b994.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3e3dd3613d3a80d79c28de23eae0acb6a9a82ad8e833162526fb07179223b994.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:3552
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 712
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:3248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3552 -ip 3552
1⤵
- Loads dropped DLL
PID:900

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

Loading Replay Monitor...

Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/3552-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3552-8-0x0000000074D00000-0x0000000074D6C000-memory.dmp

Filesize
432KB

Download
memory/3552-10-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download