192fc1ee17532a8b774faee41e4a984563800bbfcb9300ff4c6ca1bab53ce992

Resubmissions

11/08/2024, 12:46

240811-pzmdgathqa 7

11/08/2024, 12:21

240811-pjrcgsygrj 7

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
11/08/2024, 12:21

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ChessAssist-v28.3/manifest.json
Size

1KB
MD5

24314288d4ec5f588e6501af633214cb
SHA1

24a696c4798aa1b8fe44af32171e6ba3abce6363
SHA256

e7ac4a29e6debe79b9d4f32ad30fcedca665807820e9bd3a76e6ff59b88288fa
SHA512

33ac9c9b2c3d6af43bca49f8a8e4c90149b555a070ac0214b095164357641f8f7f452e91a3218bdfbbc11a6fcf1db0d10eb60e45f99f106bcdd2a48d9efd001b

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
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2952	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2952	AcroRd32.exe
2952	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2620	2180	cmd.exe	32
PID 2180 wrote to memory of 2620	2180	cmd.exe	32
PID 2180 wrote to memory of 2620	2180	cmd.exe	32
PID 2620 wrote to memory of 2952	2620	rundll32.exe	33
PID 2620 wrote to memory of 2952	2620	rundll32.exe	33
PID 2620 wrote to memory of 2952	2620	rundll32.exe	33
PID 2620 wrote to memory of 2952	2620	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\ChessAssist-v28.3\manifest.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ChessAssist-v28.3\manifest.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2620
- - 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\ChessAssist-v28.3\manifest.json"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2952

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
20ddf19826cef294e03e5f9290bdad32

SHA1
230262b143f250e5930de9eaf2dae4b4ad0fb134

SHA256
1cb71a72d44ea303c146fe8854e96c9e93d44fcfb05f406c0e643a5c11157213

SHA512
3acda596d3a72fd809497adcb08ee77633c58b5e7682c40b1402238e5e2dfa3ecacc1fc0fc4e6c9729f1534cf6dec887d6f7c5f9276d277ac8873ca26fcc550f

Download Submit