5264734e9d6cee5cb648ff0fbdb870c9bf6a0af367e5516c8269dc414a8ec589

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
10-10-2023 10:15

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General

Target

splash.json
Size

9KB
MD5

315f0eff51eec29891a1f9a97fccee9c
SHA1

d5bb01f799ad830eb1bb139eb6e7aee7b1be1739
SHA256

e86434f3cdf1efd908e5b5773d3a90a0a9a604dec9446e207aa781665edfe908
SHA512

953de0bd4d118cc2a63d32e861715c1cba20853d157144893436efb5762127a34cc18f66c7f0e515221a2de4c03f417b1b3caa998ae160c8e71ba1d53d14ec15
SSDEEP

192:lQ1PL3Mt1FF8MSlAFF8rrn3b9UGQg+F8OktrzPKt1FCBVxVpdq:lKKTR0CGFy5k5zXjO

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-1-5-21-607259312-1573743425-2763420908-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\json_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\.json	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\json_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
2172	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2172	AcroRd32.exe
2172	AcroRd32.exe
2172	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2772	3024	cmd.exe	29
PID 3024 wrote to memory of 2772	3024	cmd.exe	29
PID 3024 wrote to memory of 2772	3024	cmd.exe	29
PID 2772 wrote to memory of 2172	2772	rundll32.exe	30
PID 2772 wrote to memory of 2172	2772	rundll32.exe	30
PID 2772 wrote to memory of 2172	2772	rundll32.exe	30
PID 2772 wrote to memory of 2172	2772	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\splash.json
1⤵
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\splash.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2772
- - 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\splash.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2172

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
1c73f0475dca6e87f0b583a6d4493b0d

SHA1
a1b0dc96d281be5b2cee1b1c053b11a59e906906

SHA256
215ca80ed826ae354bff71636b62104062c23768c8a2bcb7fc5ca636ceca78c1

SHA512
28c592ed8386fe03466b60ef5128f7d7f21865227a0f9933eaaf4a43c9ac891bf47f9b8b71a5c9e8936d6d5cfd35aa91bf10f3d9b6cab0f50b357a62ff0fcac7

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