ed38f7a572415e5e1648f347a990fc3a3f2c4afcb3dd85e911277b27f866faca

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 09:30

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General

Target

1ac6a2d90e0ed718722153ea8782a4a3_JaffaCakes118.dll
Size

786KB
MD5

1ac6a2d90e0ed718722153ea8782a4a3
SHA1

b5dd2b7c20330cbf13919e00ca35914e620e2285
SHA256

ed38f7a572415e5e1648f347a990fc3a3f2c4afcb3dd85e911277b27f866faca
SHA512

ee8c161578dce3ad261d7b67de7215debf9fb66d789a1dd495af7b4f941720b2e3eb8a0746467dd45b42e993326509dfafb2f5bf6180e1e161668b3bbc77d125
SSDEEP

24576:/SlFsJI3TOrQArNZOBXvhDkoR/WxG9uZZhUW2Slvt:/AyJI3T4QAx8LFMG9IwWdlvt

Score

6^/10

adware 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

Processes:

regsvr32.exe

description ioc process

Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB} regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}	regsvr32.exe

Modifies registry class 5 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1ac6a2d90e0ed718722153ea8782a4a3_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}\	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 1044 wrote to memory of 4436	1044	regsvr32.exe	regsvr32.exe
PID 1044 wrote to memory of 4436	1044	regsvr32.exe	regsvr32.exe
PID 1044 wrote to memory of 4436	1044	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1ac6a2d90e0ed718722153ea8782a4a3_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1044

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\1ac6a2d90e0ed718722153ea8782a4a3_JaffaCakes118.dll
2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4436

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/4436-0-0x00000000023C0000-0x0000000002507000-memory.dmp

Filesize
1.3MB

Download
memory/4436-2-0x00000000005E0000-0x00000000005E2000-memory.dmp

Filesize
8KB

Download
memory/4436-1-0x00000000023C0000-0x0000000002507000-memory.dmp

Filesize
1.3MB

Download