dc12f4b255c4811e149d407f2c7ca6d9fc44cfabe922ac1ca2aa1fc6d8ad6307

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 04:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

0490ca611a0e2b50bef8d8373327d790.dll
Size

236KB
MD5

0490ca611a0e2b50bef8d8373327d790
SHA1

1d4769fcbac93ee61a6c03ef49e41721e936cc9b
SHA256

dc12f4b255c4811e149d407f2c7ca6d9fc44cfabe922ac1ca2aa1fc6d8ad6307
SHA512

55f2e272a4a2fd217ff1e52a6fe624fbba78f42fb913fe151523d59ed6197ea0f2ff6d4640db9d812a17794a70913cf5752bcc928693db08231bc88f52f1de1e
SSDEEP

1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvMI: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

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\vcp = "{f25a2d31-7ad2-cf27-8be3-7ad2a5b9c27e}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2376	rundll32.exe

Drops file in System32 directory 4 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f25a2d31-7ad2-cf27-8be3-7ad2a5b9c27e}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f25a2d31-7ad2-cf27-8be3-7ad2a5b9c27e}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f25a2d31-7ad2-cf27-8be3-7ad2a5b9c27e}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f25a2d31-7ad2-cf27-8be3-7ad2a5b9c27e}\InprocServer32\ = "C:\\Windows\\SysWow64\\qxk.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{f25a2d31-7ad2-cf27-8be3-7ad2a5b9c27e}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2376	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2376	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2376	2372	rundll32.exe	16
PID 2372 wrote to memory of 2376	2372	rundll32.exe	16
PID 2372 wrote to memory of 2376	2372	rundll32.exe	16
PID 2372 wrote to memory of 2376	2372	rundll32.exe	16
PID 2372 wrote to memory of 2376	2372	rundll32.exe	16
PID 2372 wrote to memory of 2376	2372	rundll32.exe	16
PID 2372 wrote to memory of 2376	2372	rundll32.exe	16

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0490ca611a0e2b50bef8d8373327d790.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0490ca611a0e2b50bef8d8373327d790.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:2376

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\ipc.dll

Filesize
604KB

MD5
697b0b9257596771919fee389bb2e088

SHA1
32f52e3890ca41664d51d7654d85c0ac926f0f4f

SHA256
ee12c048381cc56e0ccbef3d815f916b878ba8ac2d173f2dc9d7a9ed7fdb278b

SHA512
5970390b9f63cfc618cf58da1e4170656349fca938de20f9f957d99cad31175dfe12381aa7c623aa833b97d9c8194a1e24b24e01dafd1f17d5d35c8d2edf8b57

Download Submit
memory/2376-0-0x0000000000190000-0x00000000001D4000-memory.dmp

Filesize
272KB

Download
memory/2376-9-0x0000000076BA0000-0x0000000076C40000-memory.dmp

Filesize
640KB

Download
memory/2376-8-0x0000000000190000-0x00000000001D4000-memory.dmp

Filesize
272KB

Download
memory/2376-10-0x0000000000190000-0x00000000001D4000-memory.dmp

Filesize
272KB

Download
memory/2376-11-0x0000000076BA0000-0x0000000076C40000-memory.dmp

Filesize
640KB

Download