a97caeea5750215ce3f795d9e309e43ae4afa66ca3092e172ce66688996f0b29

Analysis

max time kernel
102s
max time network
48s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
02/08/2024, 21:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

data/OFFLINE/5EC33410/17F238BD/Bassalu4x10_con30_room.grir
Size

33KB
MD5

c064244eaa3c7f25a82f5028e8e86925
SHA1

68ba089890502a81799c9a4372e427585c57f0e1
SHA256

2fb90c700f0a8d03d2969e83c9eb787bfe30ad631ce5556d2745e6e333ed0367
SHA512

cf346b4067aa94be1fbc890eeec9ab0d9004a3df33e9bfe69085b4496db5c43dddbb7df468bcbfae9771649fe86bf86b35bc88e5ca577c3df38d218d8619292c
SSDEEP

768:8vZXw969SYTUvYli1CfEQoChpxYJQjxn2qdHZUB82wX0z+ahQsOB:aZ0694wiMPok+J62Kf2zUsOB

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.grir\ = "grir_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\grir_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\grir_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\grir_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\grir_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.grir	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\grir_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\grir_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3056	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3056	AcroRd32.exe
3056	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2176	2120	cmd.exe	32
PID 2120 wrote to memory of 2176	2120	cmd.exe	32
PID 2120 wrote to memory of 2176	2120	cmd.exe	32
PID 2176 wrote to memory of 3056	2176	rundll32.exe	33
PID 2176 wrote to memory of 3056	2176	rundll32.exe	33
PID 2176 wrote to memory of 3056	2176	rundll32.exe	33
PID 2176 wrote to memory of 3056	2176	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data\OFFLINE\5EC33410\17F238BD\Bassalu4x10_con30_room.grir
1⤵
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\data\OFFLINE\5EC33410\17F238BD\Bassalu4x10_con30_room.grir
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2176
- - 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\data\OFFLINE\5EC33410\17F238BD\Bassalu4x10_con30_room.grir"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
8f79a0fb8bf70aa34426d4c4bd495427

SHA1
c06b2911dd2cc6d8f84400fa7d195426f5143dcd

SHA256
07befe0fd5fa5ffab01f2a05ca596495118018b7bf88d6b1e026e8c9f1f84173

SHA512
0bc8d33694a65f31f791adb7ba7ebec54c78444ed845a5b9eda49a623184e68da6a833860091738bc4a331c80ca45402057dd10dd57298d404d5fbc0f6412347

Download Submit