c3f7134af0db6bd87290d826ee8d98d9fb38edd73dbfbd732c30901d700b800b

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 13:54

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General

Target

S0358-enterprise-layer.json
Size

1KB
MD5

6576122d42dbc061f53a8126b3967513
SHA1

045decbf35f72fee6bdc2abdc83d5345161ee2a2
SHA256

c3f7134af0db6bd87290d826ee8d98d9fb38edd73dbfbd732c30901d700b800b
SHA512

c27bcb4a9140f2ac0f8904fa943030d16af127762315c04951121f38c162b9109af70a592b119241ec57d6f9a12c3bbbe294d80d6ecd11e9e0463234db5f106b

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-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.json	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_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
2624	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2624	AcroRd32.exe
2624	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2676	2208	cmd.exe	29
PID 2208 wrote to memory of 2676	2208	cmd.exe	29
PID 2208 wrote to memory of 2676	2208	cmd.exe	29
PID 2676 wrote to memory of 2624	2676	rundll32.exe	30
PID 2676 wrote to memory of 2624	2676	rundll32.exe	30
PID 2676 wrote to memory of 2624	2676	rundll32.exe	30
PID 2676 wrote to memory of 2624	2676	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\S0358-enterprise-layer.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\S0358-enterprise-layer.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2676
- - 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\S0358-enterprise-layer.json"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2624

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
fc166cdc821563164222813f9f471519

SHA1
bf405d6ce1e718460bf620b889dd37f5c114720a

SHA256
3db4e8bf1aabae0ea95e17d4eaa9b5fa1c16c9e19b84f5a18f6ae84b3e6b8380

SHA512
755150933d4fd5b04c06a7b0b8262af414cd2c1a4edc6d8687e8507e965f866d4dbf54246795ec722bda250208eaad6d7e8071ccc119de0d34ecaf52d3f71391

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