be8c72e77bd4a9453a3ffbf89383ca1487c650c3eb006b8c58e5e6490089b38c

Analysis

max time kernel
30s
max time network
35s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
14-04-2023 11:47

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General

Target

BlitzedGrabberV14.pdb
Size

69KB
MD5

5bd44240d711b107c17aa2915973dda1
SHA1

35389922775faf582f0141344407ee502f92bede
SHA256

c9c5dea39b8af57a992c993f4964d746ab3245903c443e17152b1606a46d0994
SHA512

2a2a73b51f25aef70a9971a07b0e9cf12ad45fc3048652fea06106c286b58cd35fae9cd606045f230d361702f289adab81bfb071928220300b2179bfb18e13b6
SSDEEP

768:lS0w1V6uLzbPmf9NsIBVUGHqzXHJCVOxE/mNcd:lS0gscrm1WMCGa36

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 12 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\.pdb	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\pdb_auto_file\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\pdb_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\pdb_auto_file\shell\open	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\pdb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\pdb_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\pdb_auto_file\shell\edit	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\pdb_auto_file\shell\edit\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\pdb_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

1040 NOTEPAD.EXE
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundll32.exe

pid process

1904 rundll32.exe

pid	process
1040	NOTEPAD.EXE

pid	process
1904	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 908 wrote to memory of 1904	908	cmd.exe	rundll32.exe
PID 908 wrote to memory of 1904	908	cmd.exe	rundll32.exe
PID 908 wrote to memory of 1904	908	cmd.exe	rundll32.exe
PID 1904 wrote to memory of 1040	1904	rundll32.exe	NOTEPAD.EXE
PID 1904 wrote to memory of 1040	1904	rundll32.exe	NOTEPAD.EXE
PID 1904 wrote to memory of 1040	1904	rundll32.exe	NOTEPAD.EXE

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV14.pdb
1⤵
- Suspicious use of WriteProcessMemory
PID:908

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV14.pdb
2⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1904

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV14.pdb
3⤵
- Opens file in notepad (likely ransom note)
PID:1040

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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