6be4d25bd90b841fd9693a567f1983de0d1c4155a62ee066cf5f1837e75c1b06

Analysis

max time kernel
18s
max time network
17s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 07:37

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General

Target

R B X 9 5/cacert.pem
Size

2KB
MD5

39f89143815797c4a41c62f30f137094
SHA1

39a602c37ee958e5a5779c167ea095a56f0218e4
SHA256

5513aa54afe134569e08b27aa61e60e888ab31d9e112f8c5881adbaecc817678
SHA512

02cfee4a3fdc728e63e5a63797c58c5a6fbd805f6f6e5c0ab4e5dbf1d1701636a6aefc94095096b627b7475e731327d620c519ddc1a65b3ee49dd41b4d219d6d

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

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2080 AcroRd32.exe
2080 AcroRd32.exe

pid	process
2080	AcroRd32.exe
2080	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1744 wrote to memory of 2752	1744	cmd.exe	rundll32.exe
PID 1744 wrote to memory of 2752	1744	cmd.exe	rundll32.exe
PID 1744 wrote to memory of 2752	1744	cmd.exe	rundll32.exe
PID 2752 wrote to memory of 2080	2752	rundll32.exe	AcroRd32.exe
PID 2752 wrote to memory of 2080	2752	rundll32.exe	AcroRd32.exe
PID 2752 wrote to memory of 2080	2752	rundll32.exe	AcroRd32.exe
PID 2752 wrote to memory of 2080	2752	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\R B X 9 5\cacert.pem"
1⤵
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\R B X 9 5\cacert.pem
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2752

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\R B X 9 5\cacert.pem"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2080

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
ea6f04d27f02c3312988af9392267bfc

SHA1
bf4025178c4e3c77e2aeb61dbb456c202153d2de

SHA256
f980a2bbfc7cb315608978001ea1005240e041b04db89922411082e25ddbe11a

SHA512
8f2e6e366ed56ad40a27656e32bc71a0a19539b7ee2352b26526682a41715c8a498ca110596ba57e980816c0da3c4c961f013386374dc54442705c7153e8c242

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