c8e4fabd3241d672214b66b6aa73eb7b1d7fbce20b6fa4399d3b5509e84cfadc

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2022 00:16

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General

Target

c8e4fabd3241d672214b66b6aa73eb7b1d7fbce20b6fa4399d3b5509e84cfadc.dll
Size

241KB
MD5

5f8d574f25a09b467d5101b031af3a40
SHA1

d463d2f6f536396233244f24348cade74596582a
SHA256

c8e4fabd3241d672214b66b6aa73eb7b1d7fbce20b6fa4399d3b5509e84cfadc
SHA512

1b8046d00080f092baa8c0267124fe50e28608d030c7d1f4ef2b145dbf5af578904ce97a5fb4690e52157db360e9c0fd96449fabdea79d3b4ac8a701a2b23317
SSDEEP

1536:f64nc42nBVhe6ythK0hj4QUc/lIoviS0hC2pyOd31YspvaO5PWWs0wGkG77rWkd+:fHCVk9Rhjd/4NGS3DacqO7rWkdC

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\qqougkvqs = "{c4aec47c-4c26-917b-5d37-4c264cf4e478}"	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1192	rundll32.exe
1192	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ddbhtxidf.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\ddbhtxidf.dll	rundll32.exe
File created	C:\Windows\SysWOW64\ppntfjupr.dll	rundll32.exe
File created	C:\Windows\SysWOW64\lljpbfqln.dll	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c4aec47c-4c26-917b-5d37-4c264cf4e478}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c4aec47c-4c26-917b-5d37-4c264cf4e478}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c4aec47c-4c26-917b-5d37-4c264cf4e478}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c4aec47c-4c26-917b-5d37-4c264cf4e478}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{c4aec47c-4c26-917b-5d37-4c264cf4e478}\InprocServer32\ = "C:\\Windows\\SysWow64\\lljpbfqln.dll"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1192	rundll32.exe
1192	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1192	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1192	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 1192	1756	rundll32.exe	76
PID 1756 wrote to memory of 1192	1756	rundll32.exe	76
PID 1756 wrote to memory of 1192	1756	rundll32.exe	76

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8e4fabd3241d672214b66b6aa73eb7b1d7fbce20b6fa4399d3b5509e84cfadc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8e4fabd3241d672214b66b6aa73eb7b1d7fbce20b6fa4399d3b5509e84cfadc.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1192

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\ddbhtxidf.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
C:\Windows\SysWOW64\ppntfjupr.dll

Filesize
625KB

MD5
eccf28d7e5ccec24119b88edd160f8f4

SHA1
98509587a3d37a20b56b50fd57f823a1691a034c

SHA256
820c83c0533cfce2928e29edeaf6c255bc19ac9718b25a5656d99ffac30a03d6

SHA512
c1c94bbb781625b2317f0a8178d3a10d891fb71bca8f82cd831c484e8ab125301b82a14fe2ff070dc99a496cc00234300fa5536401018c40d49d44ae89409670

Download Submit
memory/1192-132-0x0000000000000000-mapping.dmp

Download