594fc6920eaa06364ff7ffeb87be15ec81882030749759a872a6b9f17da75670

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21-05-2024 14:43

240521-r3mvhshd83 3

21-05-2024 14:40

21-05-2024 14:37

21-05-2024 14:34

21-05-2024 14:31

Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 14:43

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General

Target

Some Problems/Copy of EizlnlIThz8lTNMjCPgRWSbMj0XuKqTXasXo0qBINB-fI-lANN3ldYny6X1JMWtS.c9r
Size

1.4MB
MD5

d3b75855918175e8b0f588d390295617
SHA1

66009794fa44321f70f27d3e358ce245f75ffd64
SHA256

1f92656ec6c41bd1fcf8f95a7f48daf094fa8481eb3ac93999fab4d8c39333c5
SHA512

d3ae111f2dbe41d33ca54665c5ea5a5ab3e6bd2ec08206f6e4531593cde289e503cfb85275d2d5b49d6e41b7e8ddc6f228d27d414a4da6a8db84a8974279822c
SSDEEP

24576:jMSce0KrVKP36PX18GhWqwldD/shsiCA/IDU1tS5D3ifwyIjreJNTMi6J7X:r5swZhWTTD/seAOU1tS5DERIOJNTe

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\c9r_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.c9r	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.c9r\ = "c9r_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\c9r_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\c9r_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\c9r_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\c9r_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\c9r_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2544 AcroRd32.exe
2544 AcroRd32.exe

pid	process
2544	AcroRd32.exe
2544	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2936 wrote to memory of 2632	2936	cmd.exe	rundll32.exe
PID 2936 wrote to memory of 2632	2936	cmd.exe	rundll32.exe
PID 2936 wrote to memory of 2632	2936	cmd.exe	rundll32.exe
PID 2632 wrote to memory of 2544	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2544	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2544	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2544	2632	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Some Problems\Copy of EizlnlIThz8lTNMjCPgRWSbMj0XuKqTXasXo0qBINB-fI-lANN3ldYny6X1JMWtS.c9r"
1⤵
- Suspicious use of WriteProcessMemory
PID:2936

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Some Problems\Copy of EizlnlIThz8lTNMjCPgRWSbMj0XuKqTXasXo0qBINB-fI-lANN3ldYny6X1JMWtS.c9r
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2632

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\Some Problems\Copy of EizlnlIThz8lTNMjCPgRWSbMj0XuKqTXasXo0qBINB-fI-lANN3ldYny6X1JMWtS.c9r"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2544

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
cbf929ba8592560ac7b32345c2be4a88

SHA1
08cbf749a64508ee365557f68791e6d00f42bab4

SHA256
b9162b11d5495d0525d8b5ba719b41764c138ae734082c278a715b16777f589e

SHA512
32a97eb460a712027f20270b46aa4aa58a0038ca257290c64c941086256c765d26bef4044fba1aabd06da8112f998c3d35a133c173c0f006885c3f79c31f8a41

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