ec021c01776c7e86e836ae56f331b88196a5024589b3a0a811b7c8aebacdc116

Analysis

max time kernel
151s
max time network
186s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 16:11

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General

Target

ec021c01776c7e86e836ae56f331b88196a5024589b3a0a811b7c8aebacdc116.dll
Size

1.5MB
MD5

849a766ef139b1c82e4cc8541fbb1c1c
SHA1

2d3dfa8517778130e507be7b58f1a96ea7c210ad
SHA256

ec021c01776c7e86e836ae56f331b88196a5024589b3a0a811b7c8aebacdc116
SHA512

c48bc320d04f5daf612784841a8a47cf544555803076d8933340636b986ec6babf144cc7704e2115b997dc10507eeaf2049239a90ec9b76b8670c90091207b5d
SSDEEP

6144:GXkWpMQwzjCZl13fTS5W3tc7T1rdEjVJ3D:GXNMQ1ZDfTS5eccjVBD

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ctfmon.exe = "C:\\Windows\\system32\\rundll32.exe C:\\PROGRA~3\\dllfilwinaim.dat,StartAs"	regsvr32.exe

Drops file in Program Files directory 4 IoCs

Processes:

regsvr32.exe

description	ioc	process
File created	C:\PROGRA~3\mianiwliflld.dat	regsvr32.exe
File opened for modification	C:\PROGRA~3\mianiwliflld.dat	regsvr32.exe
File created	C:\PROGRA~3\dllfilwinaim.dat	regsvr32.exe
File opened for modification	C:\PROGRA~3\dllfilwinaim.dat	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvr32.exe

pid process

1468 regsvr32.exe
1468 regsvr32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regsvr32.exe

description pid process

Token: SeDebugPrivilege 1468 regsvr32.exe

pid	process
1468	regsvr32.exe
1468	regsvr32.exe

description	pid	process
Token: SeDebugPrivilege	1468	regsvr32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 4444 wrote to memory of 1468	4444	regsvr32.exe	regsvr32.exe
PID 4444 wrote to memory of 1468	4444	regsvr32.exe	regsvr32.exe
PID 4444 wrote to memory of 1468	4444	regsvr32.exe	regsvr32.exe
PID 1468 wrote to memory of 2700	1468	regsvr32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2700

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ec021c01776c7e86e836ae56f331b88196a5024589b3a0a811b7c8aebacdc116.dll
2⤵
- Suspicious use of WriteProcessMemory
PID:4444

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\ec021c01776c7e86e836ae56f331b88196a5024589b3a0a811b7c8aebacdc116.dll
3⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1468

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1468-132-0x0000000000000000-mapping.dmp

Download
memory/1468-133-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1468-134-0x0000000002C40000-0x0000000002C6B000-memory.dmp

Filesize
172KB

Download
memory/1468-135-0x0000000002D10000-0x0000000002D78000-memory.dmp

Filesize
416KB

Download
memory/1468-136-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download