1901121fc8c7aa0f959963dfb3fad45dce6e3d4ba02cb00d60efeaebee9813a1

Analysis

max time kernel
108s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
13/06/2024, 06:36

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General

Target
1901121fc8c7aa0f959963dfb3fad45dce6e3d4ba02cb00d60efeaebee9813a1.dll
Size 124KB
Sample240613-hc8jvs1hpr
SHA256 1901121fc8c7aa0f959963dfb3fad45dce6e3d4ba02cb00d60efeaebee9813a1
MD5 7da2716f91fd3eedd1cd37a3f8a27d19
SHA1 484933fef6a3ec44f783cc7269ce2ca353c22820
SHA512 3cfc384affae10502624cac6c014b8dabf1b2208bf7fe321e8c3885664059fc1a71778d0df14d558181487c97fa093841e4a3b68d02fa268f3ef06fc3f58beeb
SSDEEP 3072:ojqePYOtdN3MeF3pi762lQBV+UdE+rECWp7hKV5Np4:ojpYOtd1hfzBV+UdvrEFp7hKV/p4
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000700000002327a-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2500	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000700000002327a-1.dat	upx
behavioral2/memory/2500-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2500-7-0x0000000010000000-0x0000000010030000-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 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2500	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3664 wrote to memory of 2500	3664	rundll32.exe	81
PID 3664 wrote to memory of 2500	3664	rundll32.exe	81
PID 3664 wrote to memory of 2500	3664	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1901121fc8c7aa0f959963dfb3fad45dce6e3d4ba02cb00d60efeaebee9813a1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3664
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1901121fc8c7aa0f959963dfb3fad45dce6e3d4ba02cb00d60efeaebee9813a1.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2500

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

symsrv.dll

Path C:\Program Files\Common Files\System\symsrv.dll
Size 67KB
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZL:c8y93KQjy7G55riF1cMo03V
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2500-4-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/2500-7-0x0000000010000000-0x0000000010030000-memory.dmp