594fc6920eaa06364ff7ffeb87be15ec81882030749759a872a6b9f17da75670

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21-05-2024 14:43

240521-r3mvhshd83 3

21-05-2024 14:40

21-05-2024 14:37

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Analysis

max time kernel
26s
max time network
19s
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 Qk-uhdiPJC1-ukzqKkWmsGZrS14wrOrVxZglRiN4HI9UKqt0oNH22aOJFSw=.c9r
Size

1.7MB
MD5

3381249b870ede261cbee05c0c0e155c
SHA1

88db7af1c8390e71bddbfbf321fd2ec7fd52d57b
SHA256

7067bafe0903e18792699836679cb6367ca5a244541397b277c78fff98af7e9a
SHA512

67af76cd5c35dd94ef01d9170ec8d13cf4528c15ee4e9f5b29004cf5f8cddc0e888790faedf1220c8dbe1e3ff05e8de78a1173fc8471e843b5b9bc19ad8fde15
SSDEEP

24576:bAAkI8y8Wj1ot3b6uvYY7RIvZxaiZ+7mEtHJItIGm2coXCb+hoNyHB0eYnpvJPEr:bEILJ6NSZT+7zP4IGm27yKhvPUnEr

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\c9r_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\c9r_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\c9r_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_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-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.c9r	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.c9r\ = "c9r_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\c9r_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\c9r_auto_file\shell	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2752	AcroRd32.exe
2752	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2628	2104	cmd.exe	29
PID 2104 wrote to memory of 2628	2104	cmd.exe	29
PID 2104 wrote to memory of 2628	2104	cmd.exe	29
PID 2628 wrote to memory of 2752	2628	rundll32.exe	30
PID 2628 wrote to memory of 2752	2628	rundll32.exe	30
PID 2628 wrote to memory of 2752	2628	rundll32.exe	30
PID 2628 wrote to memory of 2752	2628	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Some Problems\Copy of Qk-uhdiPJC1-ukzqKkWmsGZrS14wrOrVxZglRiN4HI9UKqt0oNH22aOJFSw=.c9r"
1⤵
- Suspicious use of WriteProcessMemory
PID:2104
- 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 Qk-uhdiPJC1-ukzqKkWmsGZrS14wrOrVxZglRiN4HI9UKqt0oNH22aOJFSw=.c9r
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2628
- - 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 Qk-uhdiPJC1-ukzqKkWmsGZrS14wrOrVxZglRiN4HI9UKqt0oNH22aOJFSw=.c9r"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2752

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
5332b56096a48e42297ddb04d6b3581c

SHA1
44535aa9fce64bcb5b1936daa7aec794f1c80c5a

SHA256
1ae14ec8470fd363d529ff2ec559eb3fb84321bb297748187432ba45bd4e03c5

SHA512
08600e0799e0bb592bd37f53313434e5f80a63c403caf741cd32bce16c6ccaeea417bea19b3cb1dfdfa3aa17ea456b4711ed307d87bd161f0ed86c8b6ad44be5

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