4fd29e393c3b38ec8a90ff126bc692ead3a4b56e1269fc0d242a8cbbf25fa7fd

Analysis

max time kernel
121s
max time network
122s
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/.github/ISSUE_TEMPLATE/bug_report.yaml
Size 1KB
Sample240417-zees1aeh4s
SHA256 26f85da73cda3bc4f3f0c2226488a99fd92343644391f2362a37112329c3923e
MD5 c4b9623a13fd8798b9dcb784c72ebbce
SHA1 4710e81dee134e16a10f88f17e65b25bca363260
SHA512 ae40454d59e5de332ad1ced37fd828c6dd7a879887d26776f06fa90c5fb45e165ee0684e1c7ac64e4837bf4e32bc324304bb504db17398a998020732e7937f96
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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\yaml_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\yaml_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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\yaml_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\yaml_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.yaml	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.yaml\ = "yaml_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\yaml_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\yaml_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2768	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2768	AcroRd32.exe
2768	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 2584	2340	cmd.exe	29
PID 2340 wrote to memory of 2584	2340	cmd.exe	29
PID 2340 wrote to memory of 2584	2340	cmd.exe	29
PID 2584 wrote to memory of 2768	2584	rundll32.exe	30
PID 2584 wrote to memory of 2768	2584	rundll32.exe	30
PID 2584 wrote to memory of 2768	2584	rundll32.exe	30
PID 2584 wrote to memory of 2768	2584	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Quasar-master\.github\ISSUE_TEMPLATE\bug_report.yaml
1⤵
- Suspicious use of WriteProcessMemory
PID:2340
- 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\.github\ISSUE_TEMPLATE\bug_report.yaml
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2584
- - 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\.github\ISSUE_TEMPLATE\bug_report.yaml"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2768

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 0152ba98e45f953a6b83000cbdde04ef1df1a27df2fa31c43ba9ec03df6cc1c0
MD5 cf73912ffd2ea7b29d34a45e1448fb40
SHA1 08bc5cc033ddeb12c79b48dfc91750a12809c5c9
SHA512 6f3faa8e9e8c0032df46d595b2120f47fa495acd66d012d36c7a6118c3f6448b4e7fe8f062bc999d3a84afea5c5f4a2577e1beb5f7bd34248581e8c66eccfac5
MD5 SHA1 SHA512

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