e8ce37ce99bae767df41c26f308bc9100b2074bb54d06af81706356cbcb2f434

Analysis

max time kernel
117s
max time network
133s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/12/2023, 15:14

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General

Target

03482a7cae3d747392da697c2d04d281.dll
Size

236KB
MD5

03482a7cae3d747392da697c2d04d281
SHA1

2fc5b184b3180ae0e46c99781932bc37a75e06dd
SHA256

e8ce37ce99bae767df41c26f308bc9100b2074bb54d06af81706356cbcb2f434
SHA512

4a426c9ac387708b43a839a688acc868b59c54a09a0a66f52d27ebc6d302ad8909c36e49a5b73a2e43fb65f6d8976ba324b01557aaac98ad8fd455688309406f
SSDEEP

1536:1dKaTHN2ymZ0ofa5uQm4V7HG8ldINh+RhFtFftCgpcGO5lPf/XG8GmGwktbE:1Y4tIQG8XAmbFfaGc1fawk1E

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\hntmu = "{ddf06caf-5578-aacd-6689-5578e427ba35}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1668	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ddf06caf-5578-aacd-6689-5578e427ba35}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ddf06caf-5578-aacd-6689-5578e427ba35}\InprocServer32\ = "C:\\Windows\\SysWow64\\ciohp.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ddf06caf-5578-aacd-6689-5578e427ba35}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ddf06caf-5578-aacd-6689-5578e427ba35}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ddf06caf-5578-aacd-6689-5578e427ba35}\	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1668	rundll32.exe
1668	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1668	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 1668	2376	rundll32.exe	29
PID 2376 wrote to memory of 1668	2376	rundll32.exe	29
PID 2376 wrote to memory of 1668	2376	rundll32.exe	29
PID 2376 wrote to memory of 1668	2376	rundll32.exe	29
PID 2376 wrote to memory of 1668	2376	rundll32.exe	29
PID 2376 wrote to memory of 1668	2376	rundll32.exe	29
PID 2376 wrote to memory of 1668	2376	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\03482a7cae3d747392da697c2d04d281.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\03482a7cae3d747392da697c2d04d281.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:1668

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

\Windows\SysWOW64\uagzh.dll

Filesize
625KB

MD5
95e2376b3323f062eb562b8586d0f14a

SHA1
453d4c3bf4a489433b593420a37bbffb7749875a

SHA256
bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017

SHA512
b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d

Download Submit
memory/1668-0-0x0000000000280000-0x00000000002C4000-memory.dmp

Filesize
272KB

Download
memory/1668-2-0x0000000000280000-0x00000000002C4000-memory.dmp

Filesize
272KB

Download
memory/1668-9-0x0000000075C40000-0x0000000075CE0000-memory.dmp

Filesize
640KB

Download
memory/1668-10-0x0000000000280000-0x00000000002C4000-memory.dmp

Filesize
272KB

Download
memory/1668-11-0x0000000075C40000-0x0000000075CE0000-memory.dmp

Filesize
640KB

Download