4bd4a72ec7c51b5ed57e3626cbf45e5ae5311e963062bd7c2ad04b18179165bc

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28-06-2024 14:26

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General

Target

metaData.json
Size

1KB
MD5

44150dc1fc3799cfbea9e1c2032364e9
SHA1

a63d201c86bcdd4616d859324ba6ab1f3b2b0804
SHA256

1b62de55dc3f28b4977d742d459247aaecace4802e9d11a1a50885ad719385ec
SHA512

f6a609fc29ee07549a65bf4b0b86605ca1ec4e73bedd2a66f551936037e92c497af4eddf7df000525efa59eb55878be89d560ad43276b57a3ae69bcfd8949989

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2720	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2720	AcroRd32.exe
2720	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 2268	2060	cmd.exe	29
PID 2060 wrote to memory of 2268	2060	cmd.exe	29
PID 2060 wrote to memory of 2268	2060	cmd.exe	29
PID 2268 wrote to memory of 2720	2268	rundll32.exe	30
PID 2268 wrote to memory of 2720	2268	rundll32.exe	30
PID 2268 wrote to memory of 2720	2268	rundll32.exe	30
PID 2268 wrote to memory of 2720	2268	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\metaData.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\metaData.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2268
- - 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\metaData.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2720

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
c5a3a4c5de02b9a37d7a89173da2a038

SHA1
d126f1d3e3474332e8841b72810c0326363057dc

SHA256
92487b7755cd8c5c03765364e482a6d238b09d66f7e7f3b6cc4515697c31c827

SHA512
f42f07fe04d1513d3f683f69f74223e187103f385e54973201dc3983618e8ea7c8626e037d59d79c48f3e2df550d4359652f33f023df85f2fe8f5f2e3fe3c9a3

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