4fd29e393c3b38ec8a90ff126bc692ead3a4b56e1269fc0d242a8cbbf25fa7fd

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 20:37

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General

Target
Quasar-master/.gitattributes
Size 483B
Sample240417-zees1aeh4s
SHA256 dcc4e04a9952ff446b9d78c624d80379b0f20f5817a89b9b2b1ab8b55b82fd52
MD5 c4f364b364a2ac980a1dbf9d9a73a0e1
SHA1 082442a106c29adb09669f321f984c1bf606f780
SHA512 0636a9f3c5f8d3ef061ce2271e615457b0a3b0466eace59671c696b4a81b0cc12bcb233747cfc04a6b22beb09e21798996fb4ccb3a5376b520af01c941153c84
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-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\gitattributes_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\gitattributes_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\gitattributes_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\gitattributes_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\.gitattributes	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\.gitattributes\ = "gitattributes_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\gitattributes_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_CLASSES\gitattributes_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2576	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2576	AcroRd32.exe
2576	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2608	2232	cmd.exe	29
PID 2232 wrote to memory of 2608	2232	cmd.exe	29
PID 2232 wrote to memory of 2608	2232	cmd.exe	29
PID 2608 wrote to memory of 2576	2608	rundll32.exe	31
PID 2608 wrote to memory of 2576	2608	rundll32.exe	31
PID 2608 wrote to memory of 2576	2608	rundll32.exe	31
PID 2608 wrote to memory of 2576	2608	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Quasar-master\.gitattributes
1⤵
- Suspicious use of WriteProcessMemory
PID:2232
- 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\.gitattributes
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2608
- - 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\.gitattributes"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2576

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 87a623d601958720cb094ced423f0e954cf4c6e925ee1051c9b79a21b3bc74d4
MD5 adaac502e38bff7180980ba6937821a8
SHA1 ae68c8adde356c2c47b27b07cf4b9830013f78fa
SHA512 e8262970dd463a55527cde967cabf1608f1c453501bf89342c8f4a38e91360db1b5e0f9bbf0ec09f0dca8553a4617da0876154594f4015c187a9875a9c238067
MD5 SHA1 SHA512

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