3392bb3ef0c4dfda9bd2f11710d4b6b3d94e94f475ac9a01fb579399fc1de18e

Analysis

max time kernel
150s
max time network
127s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
20/09/2023, 19:26

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General

Target

x64a.rpf
Size

46.5MB
MD5

edfbe6855ec32a21a698abc27a899341
SHA1

fbf10d78e164e0e054f04ab23279dd992ff13c86
SHA256

0851ab916bbf058124cf1160683af12f8ffc544f4daedc030aac1c7925e99d94
SHA512

5d13e0c0750c34c136d778b0ead61a8b3dbe1210b1ca8acd2a0c19b5879d3acf37e776c7a745f0e052b32c782d1983c259fc2f39517149e1cea1bd13fb97d5e0
SSDEEP

786432:o6VoH3pvrR5NilJ/QM8ZK7A09Nn5RnqOPpM8BV511TNwm44Ew2LQPN6dwU/HKIrK:o6VoH3pvrRPq/QMV7AMbZBVDbVjEw2pO

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-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\.rpf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\.rpf\ = "rpf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\rpf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\rpf_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\rpf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\rpf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\rpf_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000_CLASSES\rpf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2556	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2556	AcroRd32.exe
2556	AcroRd32.exe
2556	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 1880	1260	cmd.exe	29
PID 1260 wrote to memory of 1880	1260	cmd.exe	29
PID 1260 wrote to memory of 1880	1260	cmd.exe	29
PID 1880 wrote to memory of 2556	1880	rundll32.exe	30
PID 1880 wrote to memory of 2556	1880	rundll32.exe	30
PID 1880 wrote to memory of 2556	1880	rundll32.exe	30
PID 1880 wrote to memory of 2556	1880	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\x64a.rpf
1⤵
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\x64a.rpf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1880
- - 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\x64a.rpf"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2556

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
6aeeb7bc7829b9de4f7034aaf123cad6

SHA1
8a482dba40bc8d2f207a5d0a95812b67a4960564

SHA256
9fed80690e53d10809f5e9254afd6cf7db237cfd8ec14fd7262f8c2c1373b5f5

SHA512
58b75989d48d77d79a2eaab8c8d8dc29b946ff9fa5b80758cb7ceef5b1c8cdebb9aa1ebd3c335478734c636ae83693164882e3164b890190ab32f993c81caf33

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