475e50b3b5ed89a7df824e4aea3b4cda55fc5c479329435fe466f6b978a466d9

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/08/2024, 03:21

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General

Target

8d1c3dceb3c9247a17465ddeae2c932d_JaffaCakes118.dll
Size

229KB
MD5

8d1c3dceb3c9247a17465ddeae2c932d
SHA1

8f4f98e97713d3764767eb1f4e3751cdec1b0e1c
SHA256

475e50b3b5ed89a7df824e4aea3b4cda55fc5c479329435fe466f6b978a466d9
SHA512

5bdf5bd88fc84c9d5be3db99ae4b77690786751e68ae22714c71affede4e94933029d1463e8245805cd36235cdc4324307f98b65e1532eb38995fe27f4311deb
SSDEEP

6144:Kvblqdga5Tc+mkoIvRMV94kTtNCalLVal4J:KzoXtoWyzCeLVMc

Score

7^/10

adware discovery 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/5004-0-0x0000000000A60000-0x0000000000AFF000-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\{A692062A-4782-461B-BE98-B520F01F96FC}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{A692062A-4782-461B-BE98-B520F01F96FC}\	regsvr32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\romanime.log	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\{A692062A-4782-461B-BE98-B520F01F96FC}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A692062A-4782-461B-BE98-B520F01F96FC}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A692062A-4782-461B-BE98-B520F01F96FC}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8d1c3dceb3c9247a17465ddeae2c932d_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8d1c3dceb3c9247a17465ddeae2c932d_JaffaCakes118.TobjXQDBHO	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8d1c3dceb3c9247a17465ddeae2c932d_JaffaCakes118.TobjXQDBHO\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\8d1c3dceb3c9247a17465ddeae2c932d_JaffaCakes118.TobjXQDBHO\Clsid\ = "{A692062A-4782-461B-BE98-B520F01F96FC}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A692062A-4782-461B-BE98-B520F01F96FC}\ProgID\ = "8d1c3dceb3c9247a17465ddeae2c932d_JaffaCakes118.TobjXQDBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A692062A-4782-461B-BE98-B520F01F96FC}\ = "ËÑË÷ÒýÇæÔöÇ¿²å¼þ"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A692062A-4782-461B-BE98-B520F01F96FC}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A692062A-4782-461B-BE98-B520F01F96FC}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\8d1c3dceb3c9247a17465ddeae2c932d_JaffaCakes118.TobjXQDBHO\ = "ËÑË÷ÒýÇæÔöÇ¿²å¼þ"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 5004	4748	regsvr32.exe	84
PID 4748 wrote to memory of 5004	4748	regsvr32.exe	84
PID 4748 wrote to memory of 5004	4748	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8d1c3dceb3c9247a17465ddeae2c932d_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8d1c3dceb3c9247a17465ddeae2c932d_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:5004

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/5004-0-0x0000000000A60000-0x0000000000AFF000-memory.dmp

Filesize
636KB

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