d184450c9edd6ff492bdd9840e02df5ba0e3c7ef0758c1d8620d133633b4af95

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 00:15

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General

Target

source_prepared.pyc
Size

180KB
MD5

7883a86e0a63bea688c16918e3f602df
SHA1

b8fc8321edee26777cc80595646f1a9ee1748c9a
SHA256

7721d305ea17ca18267d7b78b18b2eb0a0f2a801a31c78882b480e515c59db8a
SHA512

f37a872e4fe7fa6dd57dddfecb26afe0813501d8f2a5a0ea333eb219943d749368ff491283f9dcd636c80bf2bca1284bdeaf7409cda72e930242fbf8562e82af
SSDEEP

3072:Z22LaLPA9Flt3opPEtelZN+thZa6CmgQDzWCknW:Z/WL6t3op8cN+rZa6CmgQDCCr

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-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2640 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2640 AcroRd32.exe
2640 AcroRd32.exe

pid	process
2640	AcroRd32.exe

pid	process
2640	AcroRd32.exe
2640	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1984 wrote to memory of 2168	1984	cmd.exe	rundll32.exe
PID 1984 wrote to memory of 2168	1984	cmd.exe	rundll32.exe
PID 1984 wrote to memory of 2168	1984	cmd.exe	rundll32.exe
PID 2168 wrote to memory of 2640	2168	rundll32.exe	AcroRd32.exe
PID 2168 wrote to memory of 2640	2168	rundll32.exe	AcroRd32.exe
PID 2168 wrote to memory of 2640	2168	rundll32.exe	AcroRd32.exe
PID 2168 wrote to memory of 2640	2168	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\source_prepared.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1984

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\source_prepared.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2168

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\source_prepared.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2640

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
a5776d2c7b6254746651c3067da8d384

SHA1
663e4e7cba0f30de52b3ccd1d8304e017025d93a

SHA256
2c7751fef241efdcce2cbc0203de5b93ff6ed804f55b2f14d7e47bdd20d9f05b

SHA512
0784bf68dcac1a42cc91b8256a05946df89fcee89f50a1c0c918267c4836b9505b2ab782b79719ec06e21979540372e4a5f803842f5e194141a9214772e3d693

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