7e4070ca62251c07e24edfbe7610dc28763298f767a11cf17da9472f49e4012c

Analysis

max time kernel
137s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
29-03-2023 14:11

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General

Target

citracximaker.7z
Size

1.4MB
MD5

d67e4e51780e49e1c1e02c0bcc1f6d40
SHA1

0aa948379f9d2cef4d2ce3e5e7e6be08b6756e31
SHA256

7e4070ca62251c07e24edfbe7610dc28763298f767a11cf17da9472f49e4012c
SHA512

7a57e86ab5ee8457d48d521979c3d053bdeb0053bfb68a7e831176b6f99117278f5030da47c1438aebb83eec282c06fd1fa54b315416883c944a756b05770f60
SSDEEP

24576:xWB6OBRzG3r1tTcNIOqA+WSpLI1NGHJq0af0f2ac+zMyshC1sBbGeUI/mWeFL/:xWB60G3BtTcNzz+WsLuUUQRdzUhIUbGN

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7z_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\.7z	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7z_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7z_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7z_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\.7z\ = "7z_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7z_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\7z_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
936	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
936	AcroRd32.exe
936	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 1096	1984	cmd.exe	28
PID 1984 wrote to memory of 1096	1984	cmd.exe	28
PID 1984 wrote to memory of 1096	1984	cmd.exe	28
PID 1096 wrote to memory of 936	1096	rundll32.exe	29
PID 1096 wrote to memory of 936	1096	rundll32.exe	29
PID 1096 wrote to memory of 936	1096	rundll32.exe	29
PID 1096 wrote to memory of 936	1096	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\citracximaker.7z
1⤵
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\citracximaker.7z
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1096
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\citracximaker.7z"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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