ae9f833a1d267824f5c55d0a233fc9e960ce383da43e219d261a8062d3af399a

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
28-03-2024 23:50

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General

Target

1.16.json
Size

288KB
MD5

9e7ab9e5ebd101e76b24899b8c2a6aa7
SHA1

f3c4aa96e12951cd2781b3e1c0e8ab82bf719cf2
SHA256

ae9f833a1d267824f5c55d0a233fc9e960ce383da43e219d261a8062d3af399a
SHA512

1cf121d02d3236fdf8ddd0d3bdb05494374dc30ea310c85f500b9a5dc3ae25de99481c83324b43e3fda8f7efa7cd03d053a1761438414c56c6103896415df020
SSDEEP

6144:qCYO2sPR5+SIrrvcyXbdLfoVjolqjuxHxu9JTAefnjDd/rj//WjAKgT15NVVAGOi:qCYO2sPR53IrrvcyXbdLQVjowjuxHxuN

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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_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-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\json_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2576	rundll32.exe
2796	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2796	AcroRd32.exe
2796	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2576	1660	cmd.exe	29
PID 1660 wrote to memory of 2576	1660	cmd.exe	29
PID 1660 wrote to memory of 2576	1660	cmd.exe	29
PID 2576 wrote to memory of 2796	2576	rundll32.exe	30
PID 2576 wrote to memory of 2796	2576	rundll32.exe	30
PID 2576 wrote to memory of 2796	2576	rundll32.exe	30
PID 2576 wrote to memory of 2796	2576	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\1.16.json
1⤵
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\1.16.json
  2⤵
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:2576
- - 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\1.16.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2796

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
e7a584f4083ea10c3db0b7eb82f634f9

SHA1
fb143a428648a1cf5f228df63a9961f7bf11faf5

SHA256
be833faa2d9a269c829a9da5192e31a860f9f6ec0909547582389e99f9071bdc

SHA512
839782efac67bcc1743388518957a7867c210c88527a1e9c2bb628f37e93974a5cdf54be84861d1090446470bf91f737cc9d894666b63467e56f35d056427a15

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