e3953286b9f949aef8b7b0a393e1cec183838c96690e66a7e6cbc5670b17ec60

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/12/2023, 21:01

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General

Target

03e8c510416614ff0b1488306626615f.dll
Size

236KB
MD5

03e8c510416614ff0b1488306626615f
SHA1

2a94ae262fc8df05f6bc808e3266516f6a4dec1d
SHA256

e3953286b9f949aef8b7b0a393e1cec183838c96690e66a7e6cbc5670b17ec60
SHA512

06d197e781946058efab6eb9c0d97810a0ea383831328e65f68183ba15de64efa8458528d9a322995f4f95daa6097085eaccdf63c5950aa498f057c13473492e
SSDEEP

1536:1dKaTHN2ymZ0ofa5uQm4V7HG8ldINh+RhFtFftCgpcGO5lPf/XG8GmGwktbk:1Y4tIQG8XAmbFfaGc1fawk1k

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

T1547.001

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\mvmuwvnvr = "{4bc4639d-c34c-1891-d45d-c34ceb151faa}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2044	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4bc4639d-c34c-1891-d45d-c34ceb151faa}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4bc4639d-c34c-1891-d45d-c34ceb151faa}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4bc4639d-c34c-1891-d45d-c34ceb151faa}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4bc4639d-c34c-1891-d45d-c34ceb151faa}\InprocServer32\ = "C:\\Windows\\SysWow64\\hqhprqiqm.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4bc4639d-c34c-1891-d45d-c34ceb151faa}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2044	rundll32.exe
2044	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2044	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2044	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2044	2312	rundll32.exe	14
PID 2312 wrote to memory of 2044	2312	rundll32.exe	14
PID 2312 wrote to memory of 2044	2312	rundll32.exe	14

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\03e8c510416614ff0b1488306626615f.dll,#1
1⤵
- 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:2044

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\03e8c510416614ff0b1488306626615f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2312

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

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Downloads

C:\Windows\SysWOW64\zizhjiaie.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/2044-0-0x0000000000910000-0x0000000000954000-memory.dmp

Filesize
272KB

Download
memory/2044-8-0x0000000076A90000-0x0000000076B0A000-memory.dmp

Filesize
488KB

Download
memory/2044-2-0x0000000000910000-0x0000000000954000-memory.dmp

Filesize
272KB

Download
memory/2044-12-0x0000000076A90000-0x0000000076B0A000-memory.dmp

Filesize
488KB

Download
memory/2044-11-0x0000000000910000-0x0000000000954000-memory.dmp

Filesize
272KB

Download