6ef26a8ac83d7e17b484e7f3de0a66d5d27a32b0b48ed55517c2f6723b67d8da

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
01/09/2023, 14:29

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General

Target

data.json
Size

30KB
MD5

bad31b8790d7e7e2fe1fee68e51a7199
SHA1

fa0db93edc98d99003685fd2f7ddb13a6ac4e718
SHA256

dddc30f815ee6f574119786d90957cc4744976185a808645d5d77afbf5817cb3
SHA512

c99acd26b97249c5c54c5050f5dfb602c22256580a01efa96306c5b2bc4c0084cef136301d0b025f62705f02251fb9956fce9c9f80b036dc46de582c412424ed
SSDEEP

384:68WTWVvKEiZoVjMMqvgA8Wg2GZpCz6VYfGrGzBGKxgz8lWfGldMi05R2rEK5sfd8:WlzYTi2DyvP83WdWDuh

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-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2516	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2516	AcroRd32.exe
2516	AcroRd32.exe
2516	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2716	2232	cmd.exe	29
PID 2232 wrote to memory of 2716	2232	cmd.exe	29
PID 2232 wrote to memory of 2716	2232	cmd.exe	29
PID 2716 wrote to memory of 2516	2716	rundll32.exe	30
PID 2716 wrote to memory of 2516	2716	rundll32.exe	30
PID 2716 wrote to memory of 2516	2716	rundll32.exe	30
PID 2716 wrote to memory of 2516	2716	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\data.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\data.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2716
- - 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\data.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2516

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

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Downloads

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

Filesize
3KB

MD5
280afb78996bbc34d13287912e6a3910

SHA1
729f74ba224f487acc63ebbd269df98543fefa63

SHA256
bab63f4bb82e60a55218327d274027f3e105c0d1ef078f0e8d197c0addcabaa6

SHA512
f412d557beae71d83fb70b2aa5117882d32110757c41ced1867416310f9f199eb54108c37e5a1f81a6704e14abb8ccdc55cfcca9cf30a3c444ab8032041a64b8

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