88e5ade2ec431b3a7398b1f81dfc4ed6119a9e95657c29a9d6646fb396f3761b

Resubmissions

29/06/2024, 22:21

240629-19544s1epm 7

29/06/2024, 22:13

240629-145amaxfjc 7

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
29/06/2024, 22:21

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General

Target

chrome_100_percent.pak
Size

132KB
MD5

a0e681fdd4613e0fff6fb8bf33a00ef1
SHA1

6789bacfe0b244ab6872bd3acc1e92030276011e
SHA256

86f6b8ffa8788603a433d425a4bc3c4031e5d394762fd53257b0d4b1cfb2ffa2
SHA512

6f6a1a8bfe3d33f3fa5f6134dac7cd8c017e38e5e2a75a93a958addbb17a601c5707d99a2af67e52c0a3d5206142209703701cd3fab44e0323a4553caee86196
SSDEEP

3072:tezwJCGIekwf9W2bg3yhPaL2o418Gb0+VRLf0ld0GY3cQ3ERVm2I:tezw1Iek+42k3yMK18Gb0OV8ld0GecQJ

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-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2736	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2736	AcroRd32.exe
2736	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 2724	1696	cmd.exe	29
PID 1696 wrote to memory of 2724	1696	cmd.exe	29
PID 1696 wrote to memory of 2724	1696	cmd.exe	29
PID 2724 wrote to memory of 2736	2724	rundll32.exe	30
PID 2724 wrote to memory of 2736	2724	rundll32.exe	30
PID 2724 wrote to memory of 2736	2724	rundll32.exe	30
PID 2724 wrote to memory of 2736	2724	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chrome_100_percent.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\chrome_100_percent.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2724
- - 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\chrome_100_percent.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2736

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
3c6f158cb75800dc4f21ccf7a684a300

SHA1
926e74c7532e0a45a6c38278eec6a28bc8eaa267

SHA256
3248ddb32a1953fdc2e64ff3d2be1954b7c291df59e45b45a8992655fc1601d8

SHA512
367e974f1337d3c619228330e4fd0be8e956c1f801757657bb1b3b1779c54d64aea5763721d47668063ff1752feaf93be51c804b0d53bbcbd3c38dd60e2b092e

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