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 -Cob4SIulRH8f_w5vJVEJMEOSqJ2qJP-4vkmrg2Xnz7xlvli_ONNtb-HEkbY.c9r
Size

340KB
MD5

61786f07257333aca8c404188a97cb9e
SHA1

af6a6e292412429edf44487b4a79bab4e69e9fda
SHA256

2fc1ebf53614c56ca8447e567c59da447425701387787c33c4cf8c6621005f43
SHA512

253d1f716ddf2cbdc8cad18f44db540bc8e2253cfc815be2410a564080b5dff814c72cad4a61cfbcb145ac79e2bd844d25efa1865319b6ca77b854122ffcaaf1
SSDEEP

6144:JGFRYS1/2viji3T/w7XOS6qXcZ4yTz/L1kf4syDNP93pDlDuYagwD34rOOFK6lBS:Jo/kMuwTr6qZyTP1g4fFYhg1rOOxC

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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\c9r_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\c9r_auto_file\	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
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	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	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\c9r_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2572 AcroRd32.exe
2572 AcroRd32.exe

pid	process
2572	AcroRd32.exe
2572	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2440 wrote to memory of 2592	2440	cmd.exe	rundll32.exe
PID 2440 wrote to memory of 2592	2440	cmd.exe	rundll32.exe
PID 2440 wrote to memory of 2592	2440	cmd.exe	rundll32.exe
PID 2592 wrote to memory of 2572	2592	rundll32.exe	AcroRd32.exe
PID 2592 wrote to memory of 2572	2592	rundll32.exe	AcroRd32.exe
PID 2592 wrote to memory of 2572	2592	rundll32.exe	AcroRd32.exe
PID 2592 wrote to memory of 2572	2592	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Some Problems\Copy of -Cob4SIulRH8f_w5vJVEJMEOSqJ2qJP-4vkmrg2Xnz7xlvli_ONNtb-HEkbY.c9r"
1⤵
- Suspicious use of WriteProcessMemory
PID:2440

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 -Cob4SIulRH8f_w5vJVEJMEOSqJ2qJP-4vkmrg2Xnz7xlvli_ONNtb-HEkbY.c9r
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2592

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 -Cob4SIulRH8f_w5vJVEJMEOSqJ2qJP-4vkmrg2Xnz7xlvli_ONNtb-HEkbY.c9r"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2572

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
7318d567a83eadd8745b808801184451

SHA1
f12bfde4a1808086402b35937eaf35eb619ede90

SHA256
98de4c915734116fbdf874388420d52585c62bd280b2f8a92f54dda2ef900adf

SHA512
6e006ed6221b6b38131658c9f175db464d60bd9c29fa6a47de006221d74289a3903ed0da5e571154c2d91613c390261c1430606f6f8b5431711a65b174a63b68

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