938d44be10097f59babeea2b2a388e8f71d663c4c543bb2bd599463f0a8b593b

Analysis

max time kernel
93s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/09/2024, 13:58

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General

Target

Codecs/asfsplliter.dll
Size

64KB
MD5

4a7e26d268c355fb5da19a4400e7770b
SHA1

ebe3c19a94e12c2a5d39bc816317961797a6c89b
SHA256

5c44df6b0d4d212271a1ca4c008ea003a2dd1168059333169b3562c51065c3e9
SHA512

db5f0161d64b27cebc6de443e68cf596725ea1034f20c58f2a019f2d50e67574e33ffe65e8f5a9b21095cd2f309a97b58ee3603e528276aeefa67c9d7b3234f6
SSDEEP

768:Y9We0OJXnfX2c+AOW8gpukVl5sqiCpl3il7T59bSob4p9Gk0:Y9WEXn/2c+7jlkV4dCpN67t9bSXG5

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}\ = "QVOD ASF Splliter"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{1932C124-77DA-4151-99AA-234FEA09F463}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Codecs\\asfsplliter.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1932C124-77DA-4151-99AA-234FEA09F463}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{1932C124-77DA-4151-99AA-234FEA09F463}\FriendlyName = "QVOD ASF Splliter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{1932C124-77DA-4151-99AA-234FEA09F463}\CLSID = "{1932C124-77DA-4151-99AA-234FEA09F463}"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{1932C124-77DA-4151-99AA-234FEA09F463}\FilterData = 02000000000060000300000000000000307069330000000000000000010000000000000000000000307479330000000088000000980000003170693308000000000000000100000000000000000000003074793300000000a8000000b80000003270693308000000000000000100000000000000000000003074793300000000c8000000b800000083eb36e44f52ce119f530020af0ba77001086d6bda9ad011a52000a0d10129c07669647300001000800000aa00389b71000000000000000000000000000000006175647300001000800000aa00389b71	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 4740	4516	regsvr32.exe	83
PID 4516 wrote to memory of 4740	4516	regsvr32.exe	83
PID 4516 wrote to memory of 4740	4516	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Codecs\asfsplliter.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Codecs\asfsplliter.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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