7425dce46b5d5d740d1287125b387448ac25acf1c91a559278779021a15c613f

Analysis

max time kernel
600s
max time network
414s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16/06/2023, 23:31

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General

Target

message_v2.rpmsg
Size

1.8MB
MD5

2998360e4a4e984d4dbab6974132ff9a
SHA1

19dc3a0691b720c3f0ce78d7fce877d72959cd96
SHA256

5ae6b1d17f030fc3ff023e9cece71f174f43711faf8876d0bad3e7cacb523f05
SHA512

87f4607bff659343fb363a539c8d0294b94623cf3a2b27b3ac63239ba75abaf988965d07759899850db6e578a95aac1f2f83044711c6a87fd9923ff32af74331
SSDEEP

49152:uUSpo9xKoIkYHjlF8JDrlknXnIHhLuN5Hqj9kA8jKsJI:uUj7KoIkwj8ZhkXnMhLs5Hq2ZjfI

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 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.rpmsg	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\rpmsg_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\rpmsg_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\rpmsg_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\.rpmsg\ = "rpmsg_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\rpmsg_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\rpmsg_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000_CLASSES\rpmsg_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
1976	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1976	AcroRd32.exe
1976	AcroRd32.exe
1976	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1220 wrote to memory of 832	1220	cmd.exe	29
PID 1220 wrote to memory of 832	1220	cmd.exe	29
PID 1220 wrote to memory of 832	1220	cmd.exe	29
PID 832 wrote to memory of 1976	832	rundll32.exe	30
PID 832 wrote to memory of 1976	832	rundll32.exe	30
PID 832 wrote to memory of 1976	832	rundll32.exe	30
PID 832 wrote to memory of 1976	832	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\message_v2.rpmsg
1⤵
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\message_v2.rpmsg
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:832
- - 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\message_v2.rpmsg"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
3KB

MD5
6a07f14472dfaf011eed59a27dc0c7cf

SHA1
0036c1029909e993c26199e751e5f10af89de446

SHA256
5ff6fc2d8569a52744f9638d2864f35d3d8720f3d2428c2e9f54b61702d2cc05

SHA512
a54793f4a87bad16eaed4a3b331b4f6fca85718b45f0ad8a55557eba31aeac9ad4a152d5cc0c43e3c7e0f6a4b627f7e280ff98cb34dad8cedf31bb7687997939

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