453eebd2dcf98e15e9ccab2c706438a9d34497631db1f64b6fe9cc3ed41696da

Analysis

max time kernel
43s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01-10-2022 11:14

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General

Target

LockBit3Builder.7z
Size

144KB
MD5

7db3797ee09aedc1c6ec1389ab199493
SHA1

42bc848028f3256cd671301991795ecc44fef4e7
SHA256

453eebd2dcf98e15e9ccab2c706438a9d34497631db1f64b6fe9cc3ed41696da
SHA512

9b42015bbb7bed0bab806c73edf43ef523e96908a501373964aebf1aa6b61952f1e4c122ca0f9b25be60fc331abc082701cf0dedeb2ee95ec8b519bef9936e7a
SSDEEP

3072:6PLaNeqK0aYGnzelprFxDbuUqwRx5eWIgBefs5kZPPDFJEPZ8UYgp:6PqTK0aYG6lpXnu7ycNZ3RGh87+

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 2 IoCs

Processes:

rundll32.exe

description	ioc	process
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\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

AUDIODG.EXE

description	pid	process
Token: 33	1712	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1712	AUDIODG.EXE
Token: 33	1712	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1712	AUDIODG.EXE

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 1048 wrote to memory of 1136	1048	cmd.exe	rundll32.exe
PID 1048 wrote to memory of 1136	1048	cmd.exe	rundll32.exe
PID 1048 wrote to memory of 1136	1048	cmd.exe	rundll32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\LockBit3Builder.7z
1⤵
- Suspicious use of WriteProcessMemory
PID:1048

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\LockBit3Builder.7z
2⤵
- Modifies registry class
PID:1136

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:916

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x580
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1712

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/1048-54-0x000007FEFC281000-0x000007FEFC283000-memory.dmp

Filesize
8KB

Download
memory/1136-76-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads