b21d91294991729fa486bbebec62e3ac6126ef6865f93d2c5e970651357bdea5

Analysis

max time kernel
183s
max time network
193s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2022, 06:02

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

b21d91294991729fa486bbebec62e3ac6126ef6865f93d2c5e970651357bdea5.dll
Size

65KB
MD5

1c66b3e7a4a4f5e3a77bef7228a3019c
SHA1

0e6d1d1b828b4805686ae77bc9695fa82fb2608c
SHA256

b21d91294991729fa486bbebec62e3ac6126ef6865f93d2c5e970651357bdea5
SHA512

1f85be83b72c8435c9d05661d5d227e4b6e4e693473598cc071eb8f1bbbf1e2c84f98c2a3597c43a1b4932e88d83faef8eb805f05653db5c538819669f53183e
SSDEEP

1536:riNfAsq5mm78QsImJrnX3jtClORbmtPThIH9B/8qf:MHqZgQPornnjtAPTS/8qf

Score

8^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4908-133-0x0000000010000000-0x0000000010030000-memory.dmp	upx

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\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\html.html.1\CLSID\ = "{FFFFEECE-FFF8-8222-2FB0-2935B9090508}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\html.html	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}\ProgID\ = "html.html.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\B21D91~1.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\html.html.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\html.html\ = "html class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\html.html.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\html.html\CurVer\ = "html.html.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\TypeLib\ = "{FFFFEECE-FFF8-8222-2FB0-2935B9090509}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}\VersionIndependentProgID\ = "html.html"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}\1.0\ = "html 7.0 Library Type"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\TypeLib\ = "{FFFFEECE-FFF8-8222-2FB0-2935B9090509}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\html.html.1\ = "html class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\html.html\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FFFFEECE-FFF8-8222-2FB0-2935B9090508}\ = "html class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FFFFEECE-FFF8-8222-2FB0-2935B9090509}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b21d91294991729fa486bbebec62e3ac6126ef6865f93d2c5e970651357bdea5.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FFFFEECE-FFF8-8222-2FB0-2935B9090510}	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 4908	1368	regsvr32.exe	84
PID 1368 wrote to memory of 4908	1368	regsvr32.exe	84
PID 1368 wrote to memory of 4908	1368	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b21d91294991729fa486bbebec62e3ac6126ef6865f93d2c5e970651357bdea5.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b21d91294991729fa486bbebec62e3ac6126ef6865f93d2c5e970651357bdea5.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4908

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4908-133-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download