7e4070ca62251c07e24edfbe7610dc28763298f767a11cf17da9472f49e4012c

Analysis

max time kernel
150s
max time network
31s
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

Citra-CXI-Maker-v1.1-20200616.7z
Size

606KB
MD5

3923f27b6f800622ffcd9f0a674420cc
SHA1

e778554f5f88dcd4af696bf69bc094322cf6bb84
SHA256

c80038ebad55d5a1b12bac2692bde7a8cd8dc971c974045b04e96423ce7a37a4
SHA512

c05134913e0bd502db904499e3f9d8ef806845a9404511282d3c80bd2012519b4295d6eac6dcf1a4ac805f4b8932fc8392cd9bc276a60f7b439c72799a46c665
SSDEEP

12288:EWNvYwQCBRzgS3r5jZ3qGTKgijDJn1aDqA+sd1d3z//hpHtNFAjELmhn1a/:EWB6CBRz33rVtTlONOqA+GZpHG1A

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
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\7z_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\7z_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\7z_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\.7z\ = "7z_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\.7z	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\7z_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_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-1-5-21-1563773381-2037468142-1146002597-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\7z_auto_file\	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1688	AcroRd32.exe
1688	AcroRd32.exe
1688	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 972 wrote to memory of 672	972	cmd.exe	28
PID 972 wrote to memory of 672	972	cmd.exe	28
PID 972 wrote to memory of 672	972	cmd.exe	28
PID 672 wrote to memory of 1688	672	rundll32.exe	29
PID 672 wrote to memory of 1688	672	rundll32.exe	29
PID 672 wrote to memory of 1688	672	rundll32.exe	29
PID 672 wrote to memory of 1688	672	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Citra-CXI-Maker-v1.1-20200616.7z
1⤵
- Suspicious use of WriteProcessMemory
PID:972
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Citra-CXI-Maker-v1.1-20200616.7z
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:672
- - 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\Citra-CXI-Maker-v1.1-20200616.7z"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1688

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

Windows 7 deprecation

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