bebb72bd4b163cbea9871662616dec595180886b5e64b7002ced5c185ba7d059

Analysis

max time kernel
241s
max time network
254s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2022, 09:42

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General

Target

bebb72bd4b163cbea9871662616dec595180886b5e64b7002ced5c185ba7d059.dll
Size

159KB
MD5

2e2c1d6fb1dbe7b9fbbad8edb825586a
SHA1

bea13d13f941597facc3d27d28ad558abbb9c8a0
SHA256

bebb72bd4b163cbea9871662616dec595180886b5e64b7002ced5c185ba7d059
SHA512

e1ae1f13a7ff5e32d19c91fae3f0aa049022c25c94f7989e56a89876c07b677c168f7ff2888e5b07071ae178eb9d0b0a1291bb4b26d40c410f1993866c67e0a8
SSDEEP

3072:vlxDF2MAP/JEhMCra2RTGPuYIrSOht/YzdTlIhZO7VrMYN6OG9ssjor:vlxDGP/JEhMCmFWYIrSOhlWdgZO7R3sE

Score

8^/10

persistence

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\360°²È«ÖÐÐÄ\Parameters\ServiceDll = "C:\\Windows\\system32\\Linsk.dll"	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
3832	svchost.exe
3832	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Linsk.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\Linsk.dll	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3908 wrote to memory of 2308	3908	rundll32.exe	77
PID 3908 wrote to memory of 2308	3908	rundll32.exe	77
PID 3908 wrote to memory of 2308	3908	rundll32.exe	77

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bebb72bd4b163cbea9871662616dec595180886b5e64b7002ced5c185ba7d059.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bebb72bd4b163cbea9871662616dec595180886b5e64b7002ced5c185ba7d059.dll,#1
  2⤵
  - Sets DLL path for service in the registry
  - Drops file in System32 directory
  PID:2308

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
PID:3832

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\Linsk.dll

Filesize
159KB

MD5
2e2c1d6fb1dbe7b9fbbad8edb825586a

SHA1
bea13d13f941597facc3d27d28ad558abbb9c8a0

SHA256
bebb72bd4b163cbea9871662616dec595180886b5e64b7002ced5c185ba7d059

SHA512
e1ae1f13a7ff5e32d19c91fae3f0aa049022c25c94f7989e56a89876c07b677c168f7ff2888e5b07071ae178eb9d0b0a1291bb4b26d40c410f1993866c67e0a8

Download Submit
C:\Windows\SysWOW64\Linsk.dll

Filesize
159KB

MD5
2e2c1d6fb1dbe7b9fbbad8edb825586a

SHA1
bea13d13f941597facc3d27d28ad558abbb9c8a0

SHA256
bebb72bd4b163cbea9871662616dec595180886b5e64b7002ced5c185ba7d059

SHA512
e1ae1f13a7ff5e32d19c91fae3f0aa049022c25c94f7989e56a89876c07b677c168f7ff2888e5b07071ae178eb9d0b0a1291bb4b26d40c410f1993866c67e0a8

Download Submit
\??\c:\windows\SysWOW64\linsk.dll

Filesize
159KB

MD5
2e2c1d6fb1dbe7b9fbbad8edb825586a

SHA1
bea13d13f941597facc3d27d28ad558abbb9c8a0

SHA256
bebb72bd4b163cbea9871662616dec595180886b5e64b7002ced5c185ba7d059

SHA512
e1ae1f13a7ff5e32d19c91fae3f0aa049022c25c94f7989e56a89876c07b677c168f7ff2888e5b07071ae178eb9d0b0a1291bb4b26d40c410f1993866c67e0a8

Download Submit
memory/2308-133-0x00000000021A0000-0x00000000021F6000-memory.dmp

Filesize
344KB

Download
memory/2308-134-0x00000000021A0000-0x00000000021F6000-memory.dmp

Filesize
344KB

Download
memory/3832-138-0x0000000001200000-0x0000000001256000-memory.dmp

Filesize
344KB

Download
memory/3832-139-0x0000000001200000-0x0000000001256000-memory.dmp

Filesize
344KB

Download