453eebd2dcf98e15e9ccab2c706438a9d34497631db1f64b6fe9cc3ed41696da

Analysis

max time kernel
150s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01-10-2022 11:16

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General

Target

config.json
Size

8KB
MD5

a6ba7b662de10b45ebe5b6b7edaa62a9
SHA1

f3ed67bdaef070cd5a213b89d53c5b8022d6f266
SHA256

3f7518d88aefd4b1e0a1d6f9748f9a9960c1271d679600e34f5065d8df8c9dc8
SHA512

7fc9d4d61742a26def74c7dd86838482e3fc1e4e065cb3a06ae151e2c8614c9c36e8816ae0a3560ad5dd3cc02be131cb232c7deacc7f7b5a611e8eec790feea1
SSDEEP

192:DLxgpmWU6ig4HJmLDHqlexR4qjIuoIyig4H8mLDHs:D1IhU6ApmZrIoyAcmM

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\json_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_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-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

344 AcroRd32.exe
344 AcroRd32.exe
344 AcroRd32.exe

pid	process
344	AcroRd32.exe
344	AcroRd32.exe
344	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1336 wrote to memory of 952	1336	cmd.exe	rundll32.exe
PID 1336 wrote to memory of 952	1336	cmd.exe	rundll32.exe
PID 1336 wrote to memory of 952	1336	cmd.exe	rundll32.exe
PID 952 wrote to memory of 344	952	rundll32.exe	AcroRd32.exe
PID 952 wrote to memory of 344	952	rundll32.exe	AcroRd32.exe
PID 952 wrote to memory of 344	952	rundll32.exe	AcroRd32.exe
PID 952 wrote to memory of 344	952	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\config.json
1⤵
- Suspicious use of WriteProcessMemory
PID:1336

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\config.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:952

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\config.json"
3⤵
- Suspicious use of SetWindowsHookEx
PID:344

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/344-81-0x0000000000000000-mapping.dmp

Download
memory/344-82-0x00000000762D1000-0x00000000762D3000-memory.dmp

Filesize
8KB

Download
memory/952-76-0x0000000000000000-mapping.dmp

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memory/1336-54-0x000007FEFBB41000-0x000007FEFBB43000-memory.dmp

Filesize
8KB

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