c522161f693c01241bdc4f0b40ea5d0a32a1d43805f3cc2dcc846ce726c54614

Analysis

max time kernel
20s
max time network
35s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 13:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c522161f693c01241bdc4f0b40ea5d0a32a1d43805f3cc2dcc846ce726c54614.dll
Size

236KB
MD5

5a8be61a64f0da7317286a041a97c39f
SHA1

23e2929acefd8c0b56acf11d987496f5a3471d18
SHA256

c522161f693c01241bdc4f0b40ea5d0a32a1d43805f3cc2dcc846ce726c54614
SHA512

f4de29fe880abf4c63bb1bd64c2b20ce20c3a3aea967582557c0c809eca37566d3b500d4ec5351b74af50a914ebec0b0a14dd4c4d98cf9b04e15ba20cfaa76e6
SSDEEP

1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvMm:Go256vS0RJAL+lHPKi40+66iwkD0t

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\iil = "{6cd86292-e450-39a5-f561-e450ea1aa387}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1636	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6cd86292-e450-39a5-f561-e450ea1aa387}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6cd86292-e450-39a5-f561-e450ea1aa387}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6cd86292-e450-39a5-f561-e450ea1aa387}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6cd86292-e450-39a5-f561-e450ea1aa387}\InprocServer32\ = "C:\\Windows\\SysWow64\\ddg.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6cd86292-e450-39a5-f561-e450ea1aa387}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1636	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1636	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 1636	1528	rundll32.exe	28
PID 1528 wrote to memory of 1636	1528	rundll32.exe	28
PID 1528 wrote to memory of 1636	1528	rundll32.exe	28
PID 1528 wrote to memory of 1636	1528	rundll32.exe	28
PID 1528 wrote to memory of 1636	1528	rundll32.exe	28
PID 1528 wrote to memory of 1636	1528	rundll32.exe	28
PID 1528 wrote to memory of 1636	1528	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c522161f693c01241bdc4f0b40ea5d0a32a1d43805f3cc2dcc846ce726c54614.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c522161f693c01241bdc4f0b40ea5d0a32a1d43805f3cc2dcc846ce726c54614.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:1636

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

Loading Replay Monitor...

Downloads

\Windows\SysWOW64\vvy.dll

Filesize
625KB

MD5
95e2376b3323f062eb562b8586d0f14a

SHA1
453d4c3bf4a489433b593420a37bbffb7749875a

SHA256
bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017

SHA512
b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d

Download Submit
memory/1636-55-0x00000000757B1000-0x00000000757B3000-memory.dmp

Filesize
8KB

Download
memory/1636-56-0x0000000000660000-0x00000000006A4000-memory.dmp

Filesize
272KB

Download
memory/1636-58-0x0000000000660000-0x00000000006A4000-memory.dmp

Filesize
272KB

Download
memory/1636-59-0x0000000000660000-0x00000000006A4000-memory.dmp

Filesize
272KB

Download