9d77c41646171e427e4693f8a74fe1a91fecb40663719ba2133f1c1144536760

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/12/2023, 19:55

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General

Target

025efd5e25602d0b75b6a9975dcfbf51.dll
Size

35KB
MD5

025efd5e25602d0b75b6a9975dcfbf51
SHA1

e9c01bdbfdcbb79e07d18385b6df2421e13deb35
SHA256

9d77c41646171e427e4693f8a74fe1a91fecb40663719ba2133f1c1144536760
SHA512

af46f0b96ee4f4fddb9888c6da4e06f7eb4c28cec92ccb1c87b933499063614fb1078ce314b17826c949c61f1b70cb2482db79a96adafb9bda7adf26d30179d4
SSDEEP

768:QIgVA17rcsh1nVNhJLeh6plqhH1eh2bQMoB:TgG7rv7jhlekzqhHMIbQHB

Score

7^/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/760-0-0x0000000010000000-0x000000001001A000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 2 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\{DF5EF25D-0870-7002-B63D-48D18AA79926}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{DF5EF25D-0870-7002-B63D-48D18AA79926}\ = "Windows Media"	regsvr32.exe

Modifies registry class 50 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\025EFD~1.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\ = "Microsoft(R) Windows Media Player"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1\CLSID\ = "{DF5EF25D-0870-7002-B63D-48D18AA79926}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\ProgID\ = "windowsmedia.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\Version\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CLSID\ = "{DF5EF25D-0870-7002-B63D-48D18AA79926}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\025efd5e25602d0b75b6a9975dcfbf51.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ = "IIECatch"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\ = "windowsmedia 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ = "IIECatch"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\VersionIndependentProgID\ = "windowsmedia"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\ = "{5473378F-410E-401B-AAB3-A196DF144470}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1\ = "windowsmedia Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\ = "windowsmedia Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\ = "{5473378F-410E-401B-AAB3-A196DF144470}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\ = "windowsmedia Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF5EF25D-0870-7002-B63D-48D18AA79926}\TypeLib\ = "{5473378F-410E-401b-AAB3-A196DF144470}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A9D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CurVer\ = "windowsmedia.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5473378F-410E-401B-AAB3-A196DF144470}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\025efd5e25602d0b75b6a9975dcfbf51.dll"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
760	regsvr32.exe
760	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 760	1396	regsvr32.exe	88
PID 1396 wrote to memory of 760	1396	regsvr32.exe	88
PID 1396 wrote to memory of 760	1396	regsvr32.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\025efd5e25602d0b75b6a9975dcfbf51.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\025efd5e25602d0b75b6a9975dcfbf51.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:760

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/760-0-0x0000000010000000-0x000000001001A000-memory.dmp

Filesize
104KB

Download