2c3a2b9bf44cabeac520d4b22e37e0e7059f325b0c2cabc23242fe6559bf0e96

Analysis

max time kernel
121s
max time network
128s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 14:40

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General

Target

lib/yaml/composer.pyc
Size

3KB
MD5

b2e171b507c7ad7c8255298d9fd25c2e
SHA1

3a95095f6934feebe3b808d756f53724028d0841
SHA256

11163d6e79ccc731735c730cd97a4e9fbf61d50f1a0533f02eb29adb20f755eb
SHA512

ce1ccca495523d0256b9d9dd509d3711866c2e92e256d468ffd1812340deb1938b5071634ae6bac9d2e0c37170c3f047e48283619ed6b250b9e4600f900ea903

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2600 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2600 AcroRd32.exe
2600 AcroRd32.exe

pid	process
2600	AcroRd32.exe

pid	process
2600	AcroRd32.exe
2600	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2120 wrote to memory of 2404	2120	cmd.exe	rundll32.exe
PID 2120 wrote to memory of 2404	2120	cmd.exe	rundll32.exe
PID 2120 wrote to memory of 2404	2120	cmd.exe	rundll32.exe
PID 2404 wrote to memory of 2600	2404	rundll32.exe	AcroRd32.exe
PID 2404 wrote to memory of 2600	2404	rundll32.exe	AcroRd32.exe
PID 2404 wrote to memory of 2600	2404	rundll32.exe	AcroRd32.exe
PID 2404 wrote to memory of 2600	2404	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\lib\yaml\composer.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2120

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\lib\yaml\composer.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2404

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\lib\yaml\composer.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2600

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
3ec40576c404ff12da610c6a1f1ec158

SHA1
ea1ffc225b2620d60102bf2493ecef2b823e5f15

SHA256
a5d5e13762e17a82562d4e0d4f129645281015fe2dc45ba4f2e7d9d581a8f455

SHA512
f28b70edbc296b87bcc5d835111124b001113081f049ddabf3db2d5c6cbf54ae8595c49ee94650bd93becda8d0de1527d631b7a89cf384ae95a268815df8c9a1

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