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
17s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 14:43

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General

Target

Some Problems/Copy of 5S4E2ZaY8HG9IzpdVSo4VhclIRdCUNVbjCs_77Nl9Pm-ANoFaueBDCbFUJKAho-n_RFF.c9r
Size

1.2MB
MD5

ddcf29ddd8819ff90e7cfec778793774
SHA1

91b6334cd5eddd74800e41819cd0cb67fc499424
SHA256

cf3084364ad862904008a73445f575cfaa3dd46968a62abf64726a2edf351e18
SHA512

65d3373f0edd7d63597e9da56cf82778bb88a4bb10dd48b9025626d2a00b35f5efc849982b8bfe1c42644668ca7d3fa47633f6d22359e16effd89923598b2269
SSDEEP

24576:qddO5oklRLre1Zx3cqufx2Xf9QrHZUNeeH8R9FIU6SpP9t/a:q/O5zdenxsqu69Qr6weH8R6gu

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
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_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-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.c9r	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.c9r\ = "c9r_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\c9r_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2620 AcroRd32.exe
2620 AcroRd32.exe

pid	process
2620	AcroRd32.exe
2620	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1892 wrote to memory of 2844	1892	cmd.exe	rundll32.exe
PID 1892 wrote to memory of 2844	1892	cmd.exe	rundll32.exe
PID 1892 wrote to memory of 2844	1892	cmd.exe	rundll32.exe
PID 2844 wrote to memory of 2620	2844	rundll32.exe	AcroRd32.exe
PID 2844 wrote to memory of 2620	2844	rundll32.exe	AcroRd32.exe
PID 2844 wrote to memory of 2620	2844	rundll32.exe	AcroRd32.exe
PID 2844 wrote to memory of 2620	2844	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Some Problems\Copy of 5S4E2ZaY8HG9IzpdVSo4VhclIRdCUNVbjCs_77Nl9Pm-ANoFaueBDCbFUJKAho-n_RFF.c9r"
1⤵
- Suspicious use of WriteProcessMemory
PID:1892

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 5S4E2ZaY8HG9IzpdVSo4VhclIRdCUNVbjCs_77Nl9Pm-ANoFaueBDCbFUJKAho-n_RFF.c9r
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2844

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 5S4E2ZaY8HG9IzpdVSo4VhclIRdCUNVbjCs_77Nl9Pm-ANoFaueBDCbFUJKAho-n_RFF.c9r"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2620

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
ad91e4020726511121fbb13612b39145

SHA1
cf837a675c0d71277be5f98339e8845b96648298

SHA256
bd7014f02d1ed6106e572684301c2eefea2f979613035bf62c86e286eef17440

SHA512
9bda8fea48fa4afd9350979fb5946b062a4f87c154d255d383edfc40449f68cb437bd98c4e26e81d302d34db6903365a71c8b795d9a3e3c9fc79c81146211c00

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