e9751abc05c3080651b583ff5f23767870c19590e5b3e7d5753879e57b311af6

Analysis

max time kernel
167s
max time network
181s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 11:41

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General

Target

e9751abc05c3080651b583ff5f23767870c19590e5b3e7d5753879e57b311af6.dll
Size

236KB
MD5

fd806b38b3d709df59db61825106208b
SHA1

b8b71e9e0d3b7df2878215644bf1a72851930455
SHA256

e9751abc05c3080651b583ff5f23767870c19590e5b3e7d5753879e57b311af6
SHA512

9ff9d5eedc6123d2151fa29b818ca80291491fd1f8fe1e2dc43fdba3a01e8ec61600ddcfdca35d6dd7ccfe2a6e93b83f7e6c7f5aa64357fd4f7187801a59c39a
SSDEEP

1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvMf:Go256vS0RJAL+lHPKi40+66iwkD0U

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\mum = "{ca4156bc-42c9-971e-53da-42c9de345c82}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4236	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\hph.dll	rundll32.exe
File created	C:\Windows\SysWOW64\zhz.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\zhz.dll	rundll32.exe
File created	C:\Windows\SysWOW64\hph.dll	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca4156bc-42c9-971e-53da-42c9de345c82}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca4156bc-42c9-971e-53da-42c9de345c82}\InprocServer32\ = "C:\\Windows\\SysWow64\\hph.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca4156bc-42c9-971e-53da-42c9de345c82}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca4156bc-42c9-971e-53da-42c9de345c82}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ca4156bc-42c9-971e-53da-42c9de345c82}\	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4236	rundll32.exe
4236	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4236	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4236	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 4236	1408	rundll32.exe	81
PID 1408 wrote to memory of 4236	1408	rundll32.exe	81
PID 1408 wrote to memory of 4236	1408	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e9751abc05c3080651b583ff5f23767870c19590e5b3e7d5753879e57b311af6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e9751abc05c3080651b583ff5f23767870c19590e5b3e7d5753879e57b311af6.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:4236

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

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Downloads

C:\Windows\SysWOW64\zhz.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/4236-134-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4236-135-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download