9a5b1d0b07b40ec0cc2df2c47790ae49a6d85c009a57a73f20a4c830cefce2df

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2023 10:30

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General

Target

003968f5.exe
Size

156KB
MD5

3a1f9e592937513387c9c1880f795757
SHA1

421b648186fb7be8e35c752f0aebf49aa0b702cb
SHA256

90922294e0c48386680d8bd3aa24f571746f2413c401c8b5e40a10e5dac859f2
SHA512

76a7693e5aaaabc25b1a9b036400617feeed5942cdae7fba9a8f5cccec22ab53140bd25f5f8e1a943a77dd49a02a49d03e4f3a62ae01e2d69b4be94185be5866
SSDEEP

3072:Z612XVqqVIAlGDInCOx7EVgeLCStSrsfp4ZdWh9NRI+JcMb8tyvl9RXECagIQCs7:I1MTZNiLCSSrc4ZdWh9tqit9WgFTDN1h

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Explorer.EXE

pid process

3480 Explorer.EXE

pid	process
3480	Explorer.EXE

Registers COM server for autorun 1 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Processes:

003968f5.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}\InprocServer32	003968f5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}\InprocServer32\ThreadingModel = "Both"	003968f5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\{38e644cb-a856-ce88-432a-9aa34b419fef}\\n."	003968f5.exe

Unexpected DNS network traffic destination 5 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description	ioc
Destination IP	66.85.130.234
Destination IP	66.85.130.234
Destination IP	66.85.130.234
Destination IP	66.85.130.234
Destination IP	66.85.130.234

Modifies registry class 5 IoCs

Processes:

003968f5.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\clsid	003968f5.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}	003968f5.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}\InprocServer32	003968f5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}\InprocServer32\ThreadingModel = "Both"	003968f5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\{38e644cb-a856-ce88-432a-9aa34b419fef}\\n."	003968f5.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

003968f5.exe

pid process

5064 003968f5.exe
5064 003968f5.exe
5064 003968f5.exe
5064 003968f5.exe
5064 003968f5.exe
5064 003968f5.exe
5064 003968f5.exe
5064 003968f5.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

003968f5.exe

description pid process

Token: SeDebugPrivilege 5064 003968f5.exe
Token: SeDebugPrivilege 5064 003968f5.exe
Token: SeDebugPrivilege 5064 003968f5.exe

pid	process
5064	003968f5.exe
5064	003968f5.exe
5064	003968f5.exe
5064	003968f5.exe
5064	003968f5.exe
5064	003968f5.exe
5064	003968f5.exe
5064	003968f5.exe

description	pid	process
Token: SeDebugPrivilege	5064	003968f5.exe
Token: SeDebugPrivilege	5064	003968f5.exe
Token: SeDebugPrivilege	5064	003968f5.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

003968f5.exe

description	pid	process	target process
PID 5064 wrote to memory of 3480	5064	003968f5.exe	Explorer.EXE
PID 5064 wrote to memory of 3480	5064	003968f5.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Executes dropped EXE
PID:3480

C:\Users\Admin\AppData\Local\Temp\003968f5.exe
"C:\Users\Admin\AppData\Local\Temp\003968f5.exe"
2⤵
- Registers COM server for autorun
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5064

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\{38e644cb-a856-ce88-432a-9aa34b419fef}\n
Filesize
26KB

MD5
fab7de9eafea67f88e43003698024c86

SHA1
24a4ef27c29cdeabed5e0af867e3f568da40d0c9

SHA256
073b1f99871dc56a33dcd55af71d53482816bfc9b3ce5c78ee53bed31b428384

SHA512
b4a57a8cc564760526d4cce26ce24e80657c064df373c307bb90cf053d01d04bdfe1def41fedfeb7715e53d8481a98c94bc6f3bf33815b4571d898aa08553fcd

Download Submit
memory/3480-3-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/3480-7-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/5064-1-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/5064-2-0x0000000000440000-0x0000000000540000-memory.dmp

Filesize
1024KB

Download
memory/5064-9-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download