761c1362a9a23cfc2e8bd68dc7e6c2fa7cd57b6810ed89fd462c14c5cc62624e

Analysis

max time kernel
91s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
03/03/2024, 09:57

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General

Target
virussign.com_9abc1846139beb80b83cc154a0c577f7.dll
Size 8KB
Sample240303-ly1b6agg9v
SHA256 761c1362a9a23cfc2e8bd68dc7e6c2fa7cd57b6810ed89fd462c14c5cc62624e
MD5 9abc1846139beb80b83cc154a0c577f7
SHA1 60b394769e43c1cee43083e696b460345ec8d16d
SHA512 908ed2d03a4974c7073ae4b599503902813a544db484e97ea8cb0c056a812768ae4e1f01ef1ba3a8079209d9f6d4763f8369a3344dfc1d3b240cef9a8634f6e8
SSDEEP 192:Gh4SFyvWohE5xf6YUBSL63SUJqtMblWN:GO+ohE2B13NJqtM
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

persistence

Malware Config

Signatures

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/memory/1720-0-0x0000000010000000-0x000000001000D000-memory.dmp	UPX

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 1720	3564	rundll32.exe	88
PID 3564 wrote to memory of 1720	3564	rundll32.exe	88
PID 3564 wrote to memory of 1720	3564	rundll32.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\virussign.com_9abc1846139beb80b83cc154a0c577f7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\virussign.com_9abc1846139beb80b83cc154a0c577f7.dll,#1
  2⤵
  - Adds Run key to start application
  - Drops file in System32 directory
  PID:1720

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

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Downloads

memory/1720-0-0x0000000010000000-0x000000001000D000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads