d7361457b9a5090057132219b1212d6fdee117069039df7baf757ba5b5d52d99

Analysis

max time kernel
153s
max time network
66s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
27-11-2022 17:56

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General

Target

d7361457b9a5090057132219b1212d6fdee117069039df7baf757ba5b5d52d99.gz
Size

2.1MB
MD5

86164f88017462abb673ae5e56136380
SHA1

85ee480c7c6c396459913f9d80c9dd876f932583
SHA256

d7361457b9a5090057132219b1212d6fdee117069039df7baf757ba5b5d52d99
SHA512

f351437c469573d32bdcdacf3856f281565d85909ecfe940fe64f7a36f026c752077c18ecc266c4f21131cd2dc53f3ea23b6dc962c84351b36f09e9c641a2e3b
SSDEEP

49152:ak9ZSPKMvIFvn/PE9Zgn2SPjIDrhSqAPpBSIAa:VUBvIN/sI7PU3LAPpBtD

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-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\gz_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\gz_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\gz_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.gz	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.gz\ = "gz_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\gz_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\gz_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\gz_auto_file\shell	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1964	AcroRd32.exe
1964	AcroRd32.exe
1964	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 1676	1728	cmd.exe	29
PID 1728 wrote to memory of 1676	1728	cmd.exe	29
PID 1728 wrote to memory of 1676	1728	cmd.exe	29
PID 1676 wrote to memory of 1964	1676	rundll32.exe	31
PID 1676 wrote to memory of 1964	1676	rundll32.exe	31
PID 1676 wrote to memory of 1964	1676	rundll32.exe	31
PID 1676 wrote to memory of 1964	1676	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\d7361457b9a5090057132219b1212d6fdee117069039df7baf757ba5b5d52d99.gz
1⤵
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\d7361457b9a5090057132219b1212d6fdee117069039df7baf757ba5b5d52d99.gz
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1676
- - 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\d7361457b9a5090057132219b1212d6fdee117069039df7baf757ba5b5d52d99.gz"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1964

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/1728-54-0x000007FEFC191000-0x000007FEFC193000-memory.dmp

Filesize
8KB

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memory/1964-82-0x0000000075FF1000-0x0000000075FF3000-memory.dmp

Filesize
8KB

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