e275e8febf42d63d37ded05b4e6aacc1b36b9ace6318cd09d65b822037464c37

Analysis

max time kernel
131s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 06:28

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General

Target

$SYSDIR/stwebdll.dll
Size

104KB
MD5

92119ff7a175e5635b87726306d82635
SHA1

6125103765180006ff3923ab03bf32d33dd491cc
SHA256

89cf6ae4df753095e06b2237e1127c8d0cc6cb879d877287355de47b59d08f28
SHA512

2130595f4a2be6ede12ff65084cbb90ffcb898fb5eb379cffaee5a4967305b6aa3c2b04e1a954b9d84000eee4d76447ceaf6031d3d0b0b09d7adf8330a750622
SSDEEP

1536:weCN8rpRhbxfocQBfH/0B0sxOtTvAWsTNjF1A+OWDlSuHnZQsoQnz8NZWYK+2GA:b1RhKcQBffc0sQAxjFSYlRH6sokz8HbK

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 41 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\stwebdll.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\TypeLib\ = "{22956032-28BC-4973-9970-299A40C86ABA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Stwebdll.webdll.1\ = "webdll Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Stwebdll.webdll\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00A5A260-956A-49E4-82FF-58CE009742C5}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00A5A260-956A-49E4-82FF-58CE009742C5}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Stwebdll.webdll\ = "webdll Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00A5A260-956A-49E4-82FF-58CE009742C5}\ = "webdll Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00A5A260-956A-49E4-82FF-58CE009742C5}\VersionIndependentProgID\ = "Stwebdll.webdll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\TypeLib\ = "{22956032-28BC-4973-9970-299A40C86ABA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Stwebdll.webdll.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Stwebdll.webdll	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Stwebdll.webdll\CLSID\ = "{00A5A260-956A-49E4-82FF-58CE009742C5}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00A5A260-956A-49E4-82FF-58CE009742C5}\InprocServer32\ThreadingModel = "both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\ = "Iwebdll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Stwebdll.webdll.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00A5A260-956A-49E4-82FF-58CE009742C5}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\ = "Iwebdll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Stwebdll.webdll.1\CLSID\ = "{00A5A260-956A-49E4-82FF-58CE009742C5}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00A5A260-956A-49E4-82FF-58CE009742C5}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\stwebdll.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}\1.0\ = "stwebdll 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00A5A260-956A-49E4-82FF-58CE009742C5}\ProgID\ = "Stwebdll.webdll.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00A5A260-956A-49E4-82FF-58CE009742C5}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{816C06DD-3116-4D55-AD48-0CF7ABAB96B1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{22956032-28BC-4973-9970-299A40C86ABA}\1.0\FLAGS\ = "0"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 4480	3576	regsvr32.exe	87
PID 3576 wrote to memory of 4480	3576	regsvr32.exe	87
PID 3576 wrote to memory of 4480	3576	regsvr32.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\stwebdll.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3576
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\stwebdll.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4480

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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