a7792c61692014d5c9b2dd62050d6bdebbef68e5d96c325a3c8a8b86a12f3a8e

Analysis

max time kernel
65s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-01-2023 19:26

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General

Target

Grounded_Fix_Repair_Steam_Generic.rar
Size

7.4MB
MD5

02e89d542bebd53701a97210fcd99e24
SHA1

b5eda5bc171d4d9a42986c685fcf9bd9a3c2e0cb
SHA256

a7792c61692014d5c9b2dd62050d6bdebbef68e5d96c325a3c8a8b86a12f3a8e
SHA512

83987a28024ae5ee3e22138f992b0483eadf7e0a26f95e7066393a657778d468a1e367ceb3163020b0922560a58dbc735a791dece6580a9d83faec849201e59b
SSDEEP

196608:mMsDS27zloa9f8d880tG1QFTSKEOAVyEHq3ndSTnD:1sDfPlTT/cyTfBjEK3dSX

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 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1396	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 1396	1080	cmd.exe	29
PID 1080 wrote to memory of 1396	1080	cmd.exe	29
PID 1080 wrote to memory of 1396	1080	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Grounded_Fix_Repair_Steam_Generic.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Grounded_Fix_Repair_Steam_Generic.rar
  2⤵
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1396

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/1080-54-0x000007FEFBE11000-0x000007FEFBE13000-memory.dmp

Filesize
8KB

Download
memory/1396-76-0x0000000000000000-mapping.dmp

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