e893c237c02949b8e1b06a0e20e4f4f9608662aa3e991475e556ee917f668316

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29/12/2023, 20:46

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

038b65c8699c5c577df4ba74c8d99fa3.dll
Size

237KB
MD5

038b65c8699c5c577df4ba74c8d99fa3
SHA1

69a544a3a53694c690a99b2ff2ee91742e24f47d
SHA256

e893c237c02949b8e1b06a0e20e4f4f9608662aa3e991475e556ee917f668316
SHA512

62faf329b399435c09fcee35f646541d4029201d8b0485047d158646684efbe13a923f3469d56d1acb5822ab40f0a79973de4b90715bd74646fe5bff1586f5e4
SSDEEP

3072:GTKVV9fgel8gGbVaPIaGD6qSb+/haryvre06VEwkz:GTKVHIfhawad+/h/rLYm

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\whhtmqs = "{6dd966a8-e551-3aa6-f662-e551ee20acf0}"	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1472	rundll32.exe
1472	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\juugzdf.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\juugzdf.dll	rundll32.exe
File created	C:\Windows\SysWOW64\vggslpr.dll	rundll32.exe
File created	C:\Windows\SysWOW64\rccohln.dll	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6dd966a8-e551-3aa6-f662-e551ee20acf0}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6dd966a8-e551-3aa6-f662-e551ee20acf0}\InprocServer32\ = "C:\\Windows\\SysWow64\\rccohln.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6dd966a8-e551-3aa6-f662-e551ee20acf0}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6dd966a8-e551-3aa6-f662-e551ee20acf0}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6dd966a8-e551-3aa6-f662-e551ee20acf0}\	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1472	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 1472	2040	rundll32.exe	28
PID 2040 wrote to memory of 1472	2040	rundll32.exe	28
PID 2040 wrote to memory of 1472	2040	rundll32.exe	28
PID 2040 wrote to memory of 1472	2040	rundll32.exe	28
PID 2040 wrote to memory of 1472	2040	rundll32.exe	28
PID 2040 wrote to memory of 1472	2040	rundll32.exe	28
PID 2040 wrote to memory of 1472	2040	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\038b65c8699c5c577df4ba74c8d99fa3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\038b65c8699c5c577df4ba74c8d99fa3.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 use of SetWindowsHookEx
  PID:1472

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

Replay Monitor

Loading Replay Monitor...

Downloads

\Windows\SysWOW64\juugzdf.dll

Filesize
625KB

MD5
95e2376b3323f062eb562b8586d0f14a

SHA1
453d4c3bf4a489433b593420a37bbffb7749875a

SHA256
bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017

SHA512
b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d

Download Submit
\Windows\SysWOW64\vggslpr.dll

Filesize
1024KB

MD5
5cf638a70fde783919b726d26d2397a7

SHA1
d6ec095319dd580fbb79c3b865a017f6cc34656b

SHA256
fcc803a7d2e6fc14824d873bb1455340fa70d876e540128ee71f3d1fb1406e7f

SHA512
7ff349574f2dda74abdb6a6524d6d96ab07db7ac78452c5e5236988a0dbde3369e2213c6f2091752554239e14e299709725a50876f07ddc21d9238648f2b35a2

Download Submit
memory/1472-0-0x00000000001C0000-0x0000000000204000-memory.dmp

Filesize
272KB

Download
memory/1472-1-0x00000000001C0000-0x0000000000204000-memory.dmp

Filesize
272KB

Download
memory/1472-11-0x0000000075770000-0x0000000075880000-memory.dmp

Filesize
1.1MB

Download
memory/1472-15-0x0000000075770000-0x0000000075880000-memory.dmp

Filesize
1.1MB

Download
memory/1472-14-0x00000000001C0000-0x0000000000204000-memory.dmp

Filesize
272KB

Download
memory/1472-12-0x0000000074E30000-0x0000000074ED0000-memory.dmp

Filesize
640KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads