bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 10:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe
Size

391KB
MD5

69d3efdcefbe2c48da373869723c4581
SHA1

36e7359bc003ef18410def193e5dc58833c398e4
SHA256

bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86
SHA512

43a9eac776d5dca213e921f8e2bf0fd0c9ee77f14ee86ddb2d33612f70590a0189ecd55eb93b06df0351459e11a4cb771e07ecefb77fd857200791c8c210828b
SSDEEP

6144:oob6m1dFAokqnYV9wpmqSafvaxcEBRylI:o+1PA/qnYV9wpmqSafvaOEBRy

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4756	bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe
Token: SeRestorePrivilege	1668	dw20.exe
Token: SeBackupPrivilege	1668	dw20.exe
Token: SeBackupPrivilege	1668	dw20.exe
Token: SeBackupPrivilege	1668	dw20.exe
Token: SeBackupPrivilege	1668	dw20.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 1668	4756	bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe	79
PID 4756 wrote to memory of 1668	4756	bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe	79
PID 4756 wrote to memory of 1668	4756	bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe	79

C:\Users\Admin\AppData\Local\Temp\bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe
"C:\Users\Admin\AppData\Local\Temp\bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4756
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 940
  2⤵
  - Drops file in Windows directory
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:1668

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4756-132-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4756-134-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4756-135-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads