f6c947e1d76698e1dd0e9e3af44b590b7d71eaa3fef3198ea17c06104df3b82b

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 01:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

WallTab.dll
Size

162KB
MD5

07ecb06133341c1e4a48e484b170222e
SHA1

ca8f5cc1a91461b5f2d0dcb3a3ecabcf4c587929
SHA256

b06844984abaa05bf33d3f3f0cd8bd7fe7ef3a8ac5298dff45e1fbff8c1e953c
SHA512

d2c9abdb6743a2f206307d9493f8eb512403292ebb6901b4e7de5d1c038fd8c64e873c300769b2e4eef5227383e5e8afc085f56dc3f25fdc2f8248d14eedc7fc
SSDEEP

3072:gkurD/VBbCXsgvhx86q35FM/MR/0uUkOnPOaitcf+8lvyXJunN:g3GXsgvhxzPlnPOaE8lAunN

Score

6^/10

adware discovery stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}	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 Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Internet Explorer\Main\TabProcGrowth = "0"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\TabProcGrowth = "0"	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WallTab.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WallTab.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand.1\ = "InSideBand Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\TypeLib\ = "{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\ProgID\ = "WallTab.InSideBand.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}\1.0\ = "WallTab 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\ = "IInSideBand"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\TypeLib\ = "{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\TypeLib\ = "{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand\ = "InSideBand Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\VersionIndependentProgID\ = "WallTab.InSideBand"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand\CLSID\ = "{A7543596-01C2-4323-B1C9-BF0FCC7833DE}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand\CurVer\ = "WallTab.InSideBand.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\ = "WallTab"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WallTab.InSideBand.1\CLSID\ = "{A7543596-01C2-4323-B1C9-BF0FCC7833DE}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A7543596-01C2-4323-B1C9-BF0FCC7833DE}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F8B71948-BA89-4D36-8059-4AF1E3DC2CCF}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\ = "IInSideBand"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51F90500-F927-4F52-BE69-3304BBAD204C}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2784	2772	regsvr32.exe	30
PID 2772 wrote to memory of 2784	2772	regsvr32.exe	30
PID 2772 wrote to memory of 2784	2772	regsvr32.exe	30
PID 2772 wrote to memory of 2784	2772	regsvr32.exe	30
PID 2772 wrote to memory of 2784	2772	regsvr32.exe	30
PID 2772 wrote to memory of 2784	2772	regsvr32.exe	30
PID 2772 wrote to memory of 2784	2772	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\WallTab.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\WallTab.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

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

Replay Monitor

Loading Replay Monitor...

Downloads