9746fee7b10895a32ee51e2c502a53f04b6bd8c5b7898dce6ba4daa0790bad86

Analysis

max time kernel
150s
max time network
48s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27/11/2022, 18:03

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General

Target

9746fee7b10895a32ee51e2c502a53f04b6bd8c5b7898dce6ba4daa0790bad86.tar
Size

70KB
MD5

b0ff10fc1bf66a25b42826d7b68d318b
SHA1

d35589dfaaa4b981bb4827707b46fee8d51a355f
SHA256

9746fee7b10895a32ee51e2c502a53f04b6bd8c5b7898dce6ba4daa0790bad86
SHA512

f668001d4f581445c340baa490a014f0ab9162387289752e6541214b4df0b0a48253cbfc0a15eb2276bd711ecbc78e065335e441a085f3f7ea93122a64c3860c
SSDEEP

768:GSfKieWHjGLWG773JoaQ61sqH8NDeA2j:reW/G775oaQusqH3j

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 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\tar_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\tar_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\tar_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\tar_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.tar\ = "tar_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\tar_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\tar_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.tar	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1756	AcroRd32.exe
1756	AcroRd32.exe
1756	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 1704	1488	cmd.exe	29
PID 1488 wrote to memory of 1704	1488	cmd.exe	29
PID 1488 wrote to memory of 1704	1488	cmd.exe	29
PID 1704 wrote to memory of 1756	1704	rundll32.exe	30
PID 1704 wrote to memory of 1756	1704	rundll32.exe	30
PID 1704 wrote to memory of 1756	1704	rundll32.exe	30
PID 1704 wrote to memory of 1756	1704	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\9746fee7b10895a32ee51e2c502a53f04b6bd8c5b7898dce6ba4daa0790bad86.tar
1⤵
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\9746fee7b10895a32ee51e2c502a53f04b6bd8c5b7898dce6ba4daa0790bad86.tar
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1704
- - 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\9746fee7b10895a32ee51e2c502a53f04b6bd8c5b7898dce6ba4daa0790bad86.tar"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1756

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

Replay Monitor

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Downloads

memory/1488-54-0x000007FEFB6D1000-0x000007FEFB6D3000-memory.dmp

Filesize
8KB

Download
memory/1756-82-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

Filesize
8KB

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