edf42b5c9ac99d9bb932c536deb6a5f497450750f032c2e7ef9f9d1cd7b6365b

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-09-2024 20:54

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General

Target

$SYSDIR/vbscript.dll
Size

452KB
MD5

85208932fe4cdfc1ad4a14df82ab1abd
SHA1

a886e8605485b28d95e9ba0cc5a516628376fd40
SHA256

1786777c13cddf2a3d90e005571a6ea1631e6741228d12f739581e6c171dee41
SHA512

55c87f041385bd55672aca81f8b2daaaa5c3332b765fef863ac6578f63f48e166b9b9b4795f36db00c0d8e4f1570642177a0eaf44ae5457a880ab39e3391e398
SSDEEP

6144:TFN199PeBsOIGNy+oSIWikz6gV9FZLewqpX+s0MgpEvsmvQ7nqtY5R:JxUEGNy+l7vL7qQsZgpEBQ7nkkR

Score

8^/10

discovery persistence

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 6 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}\ = "Microsoft Windows Script 5.6"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}\IsInstalled = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}\Version = "5,6,0,7426"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}\Locale = "EN"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4f645220-306d-11d2-995d-00c04f98bbc9}\ComponentID = "MSVBScript"	regsvr32.exe

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 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories\{F0B7A1A2-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3F4DACA7-160D-11D2-A8E9-00104B365C9F}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3742-5B07-11CF-A4B0-00AA004A55E8}\Implemented Categories\{0AEE2A92-BCBB-11D0-8C72-00C04FC2B085}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.Encode	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11CF-A4B0-00AA004A55E8}\Implemented Categories\{F0B7A1A3-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3F4DACA7-160D-11D2-A8E9-00104B365C9F}\5.5	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\ProgID	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBS\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11CF-A4B0-00AA004A55E8}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript Author\OLEScript	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript Author\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\VBS Author\ = "VB Script Language Authoring"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\OLEScript	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11CF-A4B0-00AA004A55E8}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories\{F0B7A1A1-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBS\OLESCRIPT	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript\OLEScript	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Component Categories\{F0B7A1A3-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11CF-A4B0-00AA004A55E8}\Implemented Categories\{F0B7A1A2-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.Encode\ = "VBScript Language Encoding"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11CF-A4B0-00AA004A55E8}\Implemented Categories\{F0B7A1A2-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories\{F0B7A1A2-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\OLEScript	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript Author\ = "VB Script Language Authoring"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.Encode	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.RegExp\OLESCRIPT	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript Author	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBS Author\OLESCRIPT	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.RegExp	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.RegExp\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11CF-A4B0-00AA004A55E8}\Implemented Categories\{F0B7A1A1-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBS Author\OLEScript	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.Encode\OLEScript	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3743-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.RegExp	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3F4DACA7-160D-11D2-A8E9-00104B365C9F}\5.5\HELPDIR	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript Author	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBS Author\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3742-5B07-11CF-A4B0-00AA004A55E8}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories\{0AEE2A92-BCBB-11D0-8C72-00C04FC2B085}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Component Categories\{F0B7A1A1-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.Encode\CLSID	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript Author\OLESCRIPT	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBS Author	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3742-5B07-11cf-A4B0-00AA004A55E8}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.RegExp\ = "VBScript Regular Expression"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3F4DACA4-160D-11D2-A8E9-00104B365C9F}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3F4DACA7-160D-11D2-A8E9-00104B365C9F}\1.0	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript\OLESCRIPT	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\Implemented Categories\{F0B7A1A1-9847-11CF-8F20-00805F2CD064}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\VBScript.Encode\OLESCRIPT	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2400	2708	regsvr32.exe	31
PID 2708 wrote to memory of 2400	2708	regsvr32.exe	31
PID 2708 wrote to memory of 2400	2708	regsvr32.exe	31
PID 2708 wrote to memory of 2400	2708	regsvr32.exe	31
PID 2708 wrote to memory of 2400	2708	regsvr32.exe	31
PID 2708 wrote to memory of 2400	2708	regsvr32.exe	31
PID 2708 wrote to memory of 2400	2708	regsvr32.exe	31

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\vbscript.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$SYSDIR\vbscript.dll
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Defense Evasion

Modify Registry

T1112

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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