d12d66c29aab99e084b97a06fe4c18823cf7639c3015043775c1755bd5953428

Analysis

max time kernel
150s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-02-2023 21:55

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General

Target

Bedless Client/performance.json
Size

131B
MD5

1b0c4dcaef0c6d0749ec772a0e2b1233
SHA1

88a00ee202c3cf34c6333f84c80c55c763de9d4a
SHA256

e020c3580e921b61b0db033690498051e2c88fba623269c1c9e4870149f015df
SHA512

b5ad3db64df8d1150e8b7eb658b2566e995bfe92ce3237392fa049d1c361877e6800b8ff765eb1d76db1e60a7cca4c6c5880ccf39dc28c305a7a7f7849a15e0f

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_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-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\json_auto_file\	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
644	AcroRd32.exe
644	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1564 wrote to memory of 2028	1564	cmd.exe	29
PID 1564 wrote to memory of 2028	1564	cmd.exe	29
PID 1564 wrote to memory of 2028	1564	cmd.exe	29
PID 2028 wrote to memory of 644	2028	rundll32.exe	30
PID 2028 wrote to memory of 644	2028	rundll32.exe	30
PID 2028 wrote to memory of 644	2028	rundll32.exe	30
PID 2028 wrote to memory of 644	2028	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Bedless Client\performance.json"
1⤵
- Suspicious use of WriteProcessMemory
PID:1564
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Bedless Client\performance.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2028
- - 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\Bedless Client\performance.json"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:644

Network

MITRE ATT&CK Enterprise v6

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

memory/644-82-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

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memory/1564-54-0x000007FEFBCE1000-0x000007FEFBCE3000-memory.dmp

Filesize
8KB

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