170f8915894cfbea02ea63999d61e8cf315fa64216ba468a3d551543c15e4a93

Analysis

max time kernel
154s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2023, 22:27

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General

Target

170f8915894cfbea02ea63999d61e8cf315fa64216ba468a3d551543c15e4a93.dll
Size

271KB
MD5

4af1051a33e81f189f9bf23401a8591c
SHA1

159c8a52cca593405aea713abe48f198daf7d8b4
SHA256

170f8915894cfbea02ea63999d61e8cf315fa64216ba468a3d551543c15e4a93
SHA512

faed202e20cbc6a73e60084fcb1cc6f7f31575937ef66a33cef78e313ea7b569f0ffa438aa6c615fd5da0e9bf34ce4897a5a51917e5263952d13f1f325d8610e
SSDEEP

6144:UUhqRx9vivFthdL4jjv9tIGi3imz9BV+UdvrEFp7hK/w:UUcRx9vItzoSGi3imz9BjvrEH7uw

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.

resource	yara_rule
behavioral2/files/0x00070000000231b3-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4908	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00070000000231b3-1.dat	upx
behavioral2/memory/4908-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4908-9-0x0000000010000000-0x0000000010030000-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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4908	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 4908	5044	rundll32.exe	81
PID 5044 wrote to memory of 4908	5044	rundll32.exe	81
PID 5044 wrote to memory of 4908	5044	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\170f8915894cfbea02ea63999d61e8cf315fa64216ba468a3d551543c15e4a93.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\170f8915894cfbea02ea63999d61e8cf315fa64216ba468a3d551543c15e4a93.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4908

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/4908-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4908-5-0x0000000074EE0000-0x0000000074F15000-memory.dmp

Filesize
212KB

Download
memory/4908-7-0x0000000074EE0000-0x0000000074F15000-memory.dmp

Filesize
212KB

Download
memory/4908-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4908-10-0x0000000074EE0000-0x0000000074F15000-memory.dmp

Filesize
212KB

Download
memory/4908-8-0x0000000074EE0000-0x0000000074F15000-memory.dmp

Filesize
212KB

Download
memory/4908-11-0x0000000074EE0000-0x0000000074F15000-memory.dmp

Filesize
212KB

Download