e8b0f850e34938d66a80afd9456e3c8cb6dfc234b2171f9615dfc2aa625d82e8

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
14/05/2024, 14:18

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General

Target

e8b0f850e34938d66a80afd9456e3c8cb6dfc234b2171f9615dfc2aa625d82e8.dll
Size

547KB
MD5

811da4f2cb4e42329b8ea41f76389a53
SHA1

471a111df3e1eed8488a98d9e3369389b94510fa
SHA256

e8b0f850e34938d66a80afd9456e3c8cb6dfc234b2171f9615dfc2aa625d82e8
SHA512

9cedea5e27a04aee01b0c5a24aefd9e57a4ca4a249466e05c749dce50d09652fd1290513db0126fb17ba98caba2f818a04cf1c3d95eeaaec08f83f45d7b50218
SSDEEP

12288:oWPminMSPr2dki6cD3/EljdwKrikjUXz0jXTzr5Y5ObDKHBjvrEH7A:vPmin/r46cD3/W+rEH7A

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/0x0006000000023308-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2732	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000023308-1.dat	upx
behavioral2/memory/2732-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2732-7-0x0000000010000000-0x0000000010030000-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 2 IoCs

description	pid	Process
Token: 35	2732	rundll32.exe
Token: SeDebugPrivilege	2732	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 2732	4272	rundll32.exe	83
PID 4272 wrote to memory of 2732	4272	rundll32.exe	83
PID 4272 wrote to memory of 2732	4272	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e8b0f850e34938d66a80afd9456e3c8cb6dfc234b2171f9615dfc2aa625d82e8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4272
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e8b0f850e34938d66a80afd9456e3c8cb6dfc234b2171f9615dfc2aa625d82e8.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2732

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/2732-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2732-5-0x0000000074E21000-0x0000000074E22000-memory.dmp

Filesize
4KB

Download
memory/2732-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download