2643f1eae26e481df9655c91113d5fbf729cb1dcdb929197bc903784178c957f

Analysis

max time kernel
139s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2024, 06:17

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General

Target

2643f1eae26e481df9655c91113d5fbf729cb1dcdb929197bc903784178c957f.dll
Size

223KB
MD5

2a15522d108fdb3467995f7a0d780b45
SHA1

9f9880c9f0ffa4d1934cd12e1ffd6ffbaea95c5f
SHA256

2643f1eae26e481df9655c91113d5fbf729cb1dcdb929197bc903784178c957f
SHA512

e8ddd45bc44b69765a68c2492f69932ed1e7e62eb3ef2d59a7fac1a908bb2a00acbd5290ca92346cb116c999cb360d66368a44484667cbc316c7a299e8489626
SSDEEP

3072:6huf5AGBGIcvOJvK2agufAnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKX+d5Au:ZBAGBGmVagufYLIBV+UdvrEFp7hKSeu

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/0x0009000000022912-1.dat	acprotect

Loads dropped DLL 4 IoCs

pid	Process
3052	rundll32.exe
3052	rundll32.exe
4272	WerFault.exe
1476	WerFault.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000022912-1.dat	upx
behavioral2/memory/3052-7-0x0000000002B70000-0x0000000002BA0000-memory.dmp	upx
behavioral2/memory/3052-6-0x0000000002B70000-0x0000000002BA0000-memory.dmp	upx
behavioral2/memory/3052-12-0x0000000002B70000-0x0000000002BA0000-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
1476	3052	WerFault.exe	82

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3052	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5052 wrote to memory of 3052	5052	rundll32.exe	82
PID 5052 wrote to memory of 3052	5052	rundll32.exe	82
PID 5052 wrote to memory of 3052	5052	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2643f1eae26e481df9655c91113d5fbf729cb1dcdb929197bc903784178c957f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5052
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2643f1eae26e481df9655c91113d5fbf729cb1dcdb929197bc903784178c957f.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:3052
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3052 -s 712
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3052 -ip 3052
1⤵
- Loads dropped DLL
PID:4272

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/3052-7-0x0000000002B70000-0x0000000002BA0000-memory.dmp

Filesize
192KB

Download
memory/3052-6-0x0000000002B70000-0x0000000002BA0000-memory.dmp

Filesize
192KB

Download
memory/3052-12-0x0000000002B70000-0x0000000002BA0000-memory.dmp

Filesize
192KB

Download
memory/3052-11-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download