4fd29e393c3b38ec8a90ff126bc692ead3a4b56e1269fc0d242a8cbbf25fa7fd

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 20:37

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General

Target
Quasar-master/.gitignore
Size 2KB
Sample240417-zees1aeh4s
SHA256 f0ac563d4642aa2d338e2bb3500cc09197b3cf9f02a68f16e4ec83b35dacda68
MD5 b0f929cbe3638ae0c501412e9a919a94
SHA1 2643be3241c67e09e78da50977d34304defcdbbf
SHA512 26c6cce8ef329b68171eace37a4fb8be290959eda278cce2376d64f426d6ff74be696ee059bed7acb0ae0613c7c15a4de2b90ab7dde5a1cdd7aaa3551ee565ba
MD5 SHA1 SHA512

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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gitignore_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.gitignore	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.gitignore\ = "gitignore_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gitignore_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gitignore_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gitignore_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gitignore_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\gitignore_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
2876	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2876	AcroRd32.exe
2876	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 2808	2148	cmd.exe	29
PID 2148 wrote to memory of 2808	2148	cmd.exe	29
PID 2148 wrote to memory of 2808	2148	cmd.exe	29
PID 2808 wrote to memory of 2876	2808	rundll32.exe	30
PID 2808 wrote to memory of 2876	2808	rundll32.exe	30
PID 2808 wrote to memory of 2876	2808	rundll32.exe	30
PID 2808 wrote to memory of 2876	2808	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Quasar-master\.gitignore
1⤵
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Quasar-master\.gitignore
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2808
- - 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\Quasar-master\.gitignore"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2876

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

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 69d81332a196941e8ab60b1224ea092a34da2b739afc376738b5378c2edd92e4
MD5 b7cca40f40e42fad899c596b350b2380
SHA1 30796d790480015190410a7b87f2299749ca31a2
SHA512 dc5c9891731b00e997f5219238773f09edc5f6fadaa9cea0e2f7b15439f4534343e2f48a30c5b94a0e421800d5d0ace7ccc4d013d0716840cbbce2a0eb5a520a
MD5 SHA1 SHA512

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