40cadbfb2eb5732f025d687664f34239db7153a192bca0287f9208852b201fb6

Analysis

max time kernel
149s
max time network
93s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
16/05/2026, 06:11

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General

Target
tabctl32.dll
Size 204KB
Sample260516-gxmx8aev4k
SHA256 40cadbfb2eb5732f025d687664f34239db7153a192bca0287f9208852b201fb6
MD5 908938d3ba2d870ee9fc6238a4c6af95
SHA1 e8648d6d69fd5cf900c4bf98b210f6921bed3ef5
SHA512 f9433f48330f7ddc64edb8a64229c1490fa31978e9f4ffdc5fa5ff8b18430317a39a07a559d560051ba195b730429acfb18edb38bf712507b00ac788ffca0b74
SSDEEP 3072:kBOrV7gwFcKneF9s2x+eDYIRXDc6VNeFjzBB9g3A/Vt8DbtUfREm/UmL/8zc8N9R:k0rVdCVrsEncIRXDdVNeFBIk2DgR4d
TLSH
T12D247D0273E19132F0B327701ABA7BA1EAB97D215E36D64F67402A4D1D31EA5DE34327
MD5 SHA1 SHA512 SSDEEP TLSH

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 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2A4FCCB0-DFF1-11CF-8E74-00A0C90F26F8}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}\TypeLib\ = "{BDC217C8-ED16-11CD-956C-0000C04E4C0A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDC217C8-ED16-11CD-956C-0000C04E4C0A}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tabctl32.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\MiscStatus\1\ = "197009"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDC217C8-ED16-11CD-956C-0000C04E4C0A}\1.1\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}\TypeLib\ = "{BDC217C8-ED16-11CD-956C-0000C04E4C0A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TabDlg.SSTab\CurVer\ = "TabDlg.SSTab.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\ProgID\ = "TabDlg.SSTab.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7DA06D40-54A0-11CF-A521-0080C77A7786}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tabctl32.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}\ = "IVBDataObject"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\ = "IVBDataObjectFiles"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TabDlg.SSTab\CLSID\ = "{BDC217C5-ED16-11CD-956C-0000C04E4C0A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDC217C8-ED16-11CD-956C-0000C04E4C0A}\1.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2A4FCCB0-DFF1-11CF-8E74-00A0C90F26F8}\TypeLib\ = "{BDC217C8-ED16-11CD-956C-0000C04E4C0A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\Implemented Categories\{40FC6ED4-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\Required Categories\{D40C2700-FFA1-11CF-8234-00AA00C1AB85}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2A4FCCB0-DFF1-11CF-8E74-00A0C90F26F8}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TabDlg.SSTab	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TabDlg.SSTab.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDC217C8-ED16-11CD-956C-0000C04E4C0A}\1.1\HELPDIR\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\Implemented Categories\{0DE86A53-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}\ = "DSSTabCtlEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDC217C8-ED16-11CD-956C-0000C04E4C0A}\1.1\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\TypeLib\ = "{BDC217C8-ED16-11CD-956C-0000C04E4C0A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2A4FCCB0-DFF1-11CF-8E74-00A0C90F26F8}\ = "ISSTabCtl"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\MiscStatus\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7DA06D40-54A0-11CF-A521-0080C77A7786}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\Control	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\MiscStatus	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\Implemented Categories\{0DE86A52-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7DA06D40-54A0-11CF-A521-0080C77A7786}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\TypeLib\ = "{BDC217C8-ED16-11CD-956C-0000C04E4C0A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDC217C8-ED16-11CD-956C-0000C04E4C0A}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2A4FCCB0-DFF1-11CF-8E74-00A0C90F26F8}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\ = "IVBDataObjectFiles"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2A4FCCB0-DFF1-11CF-8E74-00A0C90F26F8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2A4FCCB0-DFF1-11CF-8E74-00A0C90F26F8}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDC217C7-ED16-11CD-956C-0000C04E4C0A}\TypeLib\ = "{BDC217C8-ED16-11CD-956C-0000C04E4C0A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BDC217C5-ED16-11CD-956C-0000C04E4C0A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TabDlg.SSTab.1\CLSID\ = "{BDC217C5-ED16-11CD-956C-0000C04E4C0A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2A4FCCB0-DFF1-11CF-8E74-00A0C90F26F8}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2A4FCCB0-DFF1-11CF-8E74-00A0C90F26F8}\TypeLib\Version = "1.1"	regsvr32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3180 wrote to memory of 4552	3180	regsvr32.exe	81

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\tabctl32.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3180
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\tabctl32.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4552

Network

MITRE ATT&CK Enterprise v16

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 v16

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