d3547a50c87f65708dd5cc01a55f2449962f552ba0e0dab6f54bb0e116028b69

Resubmissions

26/04/2024, 07:52 UTC

240426-jqc6jscb3x 1

26/04/2024, 07:48 UTC

240426-jm6npaca94 3

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/04/2024, 07:48 UTC

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General

Target

ChatSentinel/blacklist.yml
Size

7KB
MD5

0a8d0a3052ae7ac9f36a7472fd848d74
SHA1

746677f4c0e5edb88ec4d3f65f7dcb56d0593a08
SHA256

29588bb74610c517dff9659b8e132c52ee487c3f6a9a7b2a1a07cc91a3931916
SHA512

393d245b0b2544f347fdea6265a661c8e483f88cf6d6db642384c4a2c3e0aaa38403faa62d0d80a5688e25cb7da3ecbedb7d5d9734665b13c1d6d6acc5384449
SSDEEP

96:ajMpwK8wj5d5to2qcOdyHmhR6HXIFbzAjn/jP9IKlT6:ajMpwK8wBt8JR64xAFVlT6

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\yml_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\yml_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\yml_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.yml	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.yml\ = "yml_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\yml_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\yml_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\yml_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
2552	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2552	AcroRd32.exe
2552	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2948	3016	cmd.exe	29
PID 3016 wrote to memory of 2948	3016	cmd.exe	29
PID 3016 wrote to memory of 2948	3016	cmd.exe	29
PID 2948 wrote to memory of 2552	2948	rundll32.exe	30
PID 2948 wrote to memory of 2552	2948	rundll32.exe	30
PID 2948 wrote to memory of 2552	2948	rundll32.exe	30
PID 2948 wrote to memory of 2552	2948	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\ChatSentinel\blacklist.yml
1⤵
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ChatSentinel\blacklist.yml
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2948
- - 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\ChatSentinel\blacklist.yml"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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

Filesize
3KB

MD5
c0053b78c94abbf3b4974a8098152115

SHA1
4acff28a86b7b27305de9c96626955b493cd9985

SHA256
51044225ce5778aafc9bf39d8e77a1613289dc2eb40f7527f188fca85bed5067

SHA512
1eb1a80a407479c05cebe78b1558166d208c61f9e00cb7c6760ef8d92662ef0081f8062287432cd17dbed6c2efd728d7761e9e6f8d762bed90f0b31c44d54dbe

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