91cbcf9591d6221a3b32b4eff942c4639efc292ce8ac7ebec91cbe9e11522ac8

Analysis

max time kernel
134s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27/07/2024, 17:15

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General

Target

78ebdb6b6e39c5acf1dc9429d7e5acad_JaffaCakes118.dll
Size

640KB
MD5

78ebdb6b6e39c5acf1dc9429d7e5acad
SHA1

85bba93920ca1e5c59d8449ca7e089860fd21afc
SHA256

91cbcf9591d6221a3b32b4eff942c4639efc292ce8ac7ebec91cbe9e11522ac8
SHA512

db61bd8bdd0295305f0168b23ebe01c2709800503b16260d37f74abc3302f1185eed826e74928deb1b12effb51ee934e33544dccd95d106e6560d8a48fedb629
SSDEEP

12288:q0Et9YDc5DMWfT44XUDxoyiD02sHL1PecehM2tePm:6tWDc/EXouPL1Pe/hMA+

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\{CC01FC6C-ADF8-84BB-61E7-3C358AEE2C6E}	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 registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-ADF8-84BB-61E7-3C358AEE2C6E}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-ADF8-84BB-61E7-3C358AEE2C6E}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\78ebdb6b6e39c5acf1dc9429d7e5acad_JaffaCakes118.brm inc	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\78ebdb6b6e39c5acf1dc9429d7e5acad_JaffaCakes118.brm inc\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\78ebdb6b6e39c5acf1dc9429d7e5acad_JaffaCakes118.brm inc\Clsid\ = "{CC01FC6C-ADF8-84BB-61E7-3C358AEE2C6E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-ADF8-84BB-61E7-3C358AEE2C6E}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-ADF8-84BB-61E7-3C358AEE2C6E}\ProgID\ = "78ebdb6b6e39c5acf1dc9429d7e5acad_JaffaCakes118.brm inc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-ADF8-84BB-61E7-3C358AEE2C6E}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-ADF8-84BB-61E7-3C358AEE2C6E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\78ebdb6b6e39c5acf1dc9429d7e5acad_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\78ebdb6b6e39c5acf1dc9429d7e5acad_JaffaCakes118.brm inc\ = "brm inc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-ADF8-84BB-61E7-3C358AEE2C6E}\ = "brm inc"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 3824	4336	regsvr32.exe	84
PID 4336 wrote to memory of 3824	4336	regsvr32.exe	84
PID 4336 wrote to memory of 3824	4336	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\78ebdb6b6e39c5acf1dc9429d7e5acad_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4336
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\78ebdb6b6e39c5acf1dc9429d7e5acad_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3824

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/3824-0-0x0000000001F30000-0x0000000001FD5000-memory.dmp

Filesize
660KB

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