a7ac6ea17219d2f83465c7e56023a6110c3cc8ccf2d798249b0f74d03fb3ae35

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 04:31

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General

Target

a7ac6ea17219d2f83465c7e56023a6110c3cc8ccf2d798249b0f74d03fb3ae35.dll
Size

223KB
MD5

0fd03c4aef8e9b9add94001de9964ac0
SHA1

7ad7ef363ce9103bba191de8a3d319ce3d0de96d
SHA256

a7ac6ea17219d2f83465c7e56023a6110c3cc8ccf2d798249b0f74d03fb3ae35
SHA512

55cd6614dde92dbb71d59562f1eb04fdd55d55ddbc5949a3e9b9f477a34786d74daa9e186bd5d1f103c02dbc02c379b6b4f6161abdf5f05b73715e44d3daad4d
SSDEEP

3072:6huf5AUWGIcvCJvK2myAnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKear:ZBAUWG6VmyYLIBV+UdvrEFp7hKNr

Score

8^/10

persistence upx

Malware Config

Signatures

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.

Processes:

resource	yara_rule
C:\Program Files\Common Files\System\symsrv.dll	acprotect

Loads dropped DLL 4 IoCs

Processes:

rundll32.exeWerFault.exeWerFault.exe

pid process

3012 rundll32.exe
3012 rundll32.exe
3368 WerFault.exe
2176 WerFault.exe

pid	process
3012	rundll32.exe
3012	rundll32.exe
3368	WerFault.exe
2176	WerFault.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
C:\Program Files\Common Files\System\symsrv.dll	upx
behavioral2/memory/3012-7-0x00000000009B0000-0x00000000009E0000-memory.dmp	upx
behavioral2/memory/3012-6-0x00000000009B0000-0x00000000009E0000-memory.dmp	upx
behavioral2/memory/3012-13-0x00000000009B0000-0x00000000009E0000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Program Files\Common Files\System\symsrv.dll rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2176 3012 WerFault.exe rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 3012 rundll32.exe

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

pid	pid_target	process	target process
2176	3012	WerFault.exe	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	3012	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3724 wrote to memory of 3012	3724	rundll32.exe	rundll32.exe
PID 3724 wrote to memory of 3012	3724	rundll32.exe	rundll32.exe
PID 3724 wrote to memory of 3012	3724	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a7ac6ea17219d2f83465c7e56023a6110c3cc8ccf2d798249b0f74d03fb3ae35.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3724
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a7ac6ea17219d2f83465c7e56023a6110c3cc8ccf2d798249b0f74d03fb3ae35.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:3012
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 712
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3012 -ip 3012
1⤵
- Loads dropped DLL
PID:3368

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/3012-7-0x00000000009B0000-0x00000000009E0000-memory.dmp

Filesize
192KB

Download
memory/3012-6-0x00000000009B0000-0x00000000009E0000-memory.dmp

Filesize
192KB

Download
memory/3012-11-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/3012-13-0x00000000009B0000-0x00000000009E0000-memory.dmp

Filesize
192KB

Download