85ad1e6705fc7c058c7b8aeca41fbae78039db1025d56d0ed1d990cf31ef5573

Analysis

max time kernel
91s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/09/2024, 20:32

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General

Target

ff48ff1c523b3d032912217be862f987_JaffaCakes118.dll
Size

232KB
MD5

ff48ff1c523b3d032912217be862f987
SHA1

8f3aae475980546e6d32d023d81b52b88ffc75f8
SHA256

85ad1e6705fc7c058c7b8aeca41fbae78039db1025d56d0ed1d990cf31ef5573
SHA512

7063d873290d95691a7b9fd747b4d84f18b268d553430ed77f967457d5d895f24a240f150d04ad51702cc3f3f522af9ed15ae972e836c0ed16f9f18b49e60bc4
SSDEEP

3072:blBdIa9pHcf9XRpbeNJZYPZAbdauKy4JOoRr61b3hXRyZLgx8pyjTs2tN5li0XLo:RB6a9pHgxveZ4AgzxJm/hy08Id7ivhF

Score

6^/10

adware discovery stealer upx

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\{CC01FC6C-5D7D-4F45-9E2F-D826DF4FA268}	regsvr32.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3616-0-0x0000000000400000-0x00000000004A3000-memory.dmp	upx

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 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-5D7D-4F45-9E2F-D826DF4FA268}\ = "sch"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-5D7D-4F45-9E2F-D826DF4FA268}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ff48ff1c523b3d032912217be862f987_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-5D7D-4F45-9E2F-D826DF4FA268}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ff48ff1c523b3d032912217be862f987_JaffaCakes118.sch	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ff48ff1c523b3d032912217be862f987_JaffaCakes118.sch\Clsid\ = "{CC01FC6C-5D7D-4F45-9E2F-D826DF4FA268}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-5D7D-4F45-9E2F-D826DF4FA268}\ProgID\ = "ff48ff1c523b3d032912217be862f987_JaffaCakes118.sch"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-5D7D-4F45-9E2F-D826DF4FA268}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-5D7D-4F45-9E2F-D826DF4FA268}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ff48ff1c523b3d032912217be862f987_JaffaCakes118.sch\ = "sch"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ff48ff1c523b3d032912217be862f987_JaffaCakes118.sch\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-5D7D-4F45-9E2F-D826DF4FA268}\ProgID	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3168 wrote to memory of 3616	3168	regsvr32.exe	84
PID 3168 wrote to memory of 3616	3168	regsvr32.exe	84
PID 3168 wrote to memory of 3616	3168	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ff48ff1c523b3d032912217be862f987_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ff48ff1c523b3d032912217be862f987_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3616

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

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Downloads

memory/3616-0-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

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