89d37f8eb575c2e7210d779c2c4d7c82d8f7a5bf27ec52193cdc3b2cb6d6dabe

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26/05/2024, 22:23

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General

Target

89d37f8eb575c2e7210d779c2c4d7c82d8f7a5bf27ec52193cdc3b2cb6d6dabe.dll
Size

223KB
MD5

f68926bc9cb8f5379fd3b86739e27652
SHA1

c3a41b8da28d35bc5867ae4ad7d3ec92ff805409
SHA256

89d37f8eb575c2e7210d779c2c4d7c82d8f7a5bf27ec52193cdc3b2cb6d6dabe
SHA512

41bd9bbb7bca01ace488f13248187edb28ef940ad9e1de434c41a2c4657537180e156dd262090fc9109747d5728387f17efd4664e9ed6be17fd057734871b91d
SSDEEP

3072:6huf5A/IcvYJvK2agufAnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKSd5AxvFa:ZBA/wVagufYLIBV+UdvrEFp7hKGexv4

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/0x000800000002326a-1.dat	acprotect

Loads dropped DLL 4 IoCs

pid	Process
4656	rundll32.exe
4656	rundll32.exe
3300	WerFault.exe
1600	WerFault.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000800000002326a-1.dat	upx
behavioral2/memory/4656-6-0x00000000024B0000-0x00000000024E0000-memory.dmp	upx
behavioral2/memory/4656-7-0x00000000024B0000-0x00000000024E0000-memory.dmp	upx
behavioral2/memory/4656-12-0x00000000024B0000-0x00000000024E0000-memory.dmp	upx
behavioral2/memory/4656-15-0x00000000024B0000-0x00000000024E0000-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
1600	4656	WerFault.exe	91

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4656	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 4656	4888	rundll32.exe	91
PID 4888 wrote to memory of 4656	4888	rundll32.exe	91
PID 4888 wrote to memory of 4656	4888	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\89d37f8eb575c2e7210d779c2c4d7c82d8f7a5bf27ec52193cdc3b2cb6d6dabe.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\89d37f8eb575c2e7210d779c2c4d7c82d8f7a5bf27ec52193cdc3b2cb6d6dabe.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4656
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4656 -s 704
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 4656 -ip 4656
1⤵
- Loads dropped DLL
PID:3300

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4340 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
1⤵
PID:1964

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/4656-6-0x00000000024B0000-0x00000000024E0000-memory.dmp

Filesize
192KB

Download
memory/4656-7-0x00000000024B0000-0x00000000024E0000-memory.dmp

Filesize
192KB

Download
memory/4656-12-0x00000000024B0000-0x00000000024E0000-memory.dmp

Filesize
192KB

Download
memory/4656-11-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/4656-15-0x00000000024B0000-0x00000000024E0000-memory.dmp

Filesize
192KB

Download