d2b4a568593b6f6e2d9da29875abe3e4eaf31ee7f92145d7bd482b8da27c8c24

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 07:49

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General

Target

ea96d4a1902343c7219441cd600e3a30_JaffaCakes118.dll
Size

154KB
MD5

ea96d4a1902343c7219441cd600e3a30
SHA1

fe48d0be0a1515f45aacdbd8219577ae2d7f91a7
SHA256

d2b4a568593b6f6e2d9da29875abe3e4eaf31ee7f92145d7bd482b8da27c8c24
SHA512

f15225e940ebf3bae4d0be0e68acc3f921687a547a5f39b33c035022d3e75a691683e9f165b0b340d2d22dd9b10fad737829837d350bad7d11c9d30d4d140d9e
SSDEEP

3072:0DbFh+qEsbB62Sy2903cJtxrxpAdfZbJyUj5ko:0DhcqEsHSyeNJXrxG5j2o

Score

6^/10

adware persistence stealer

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\{7ff9830d-17f4-c89f-7803-1b5a43bc07f4} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ea96d4a1902343c7219441cd600e3a30_JaffaCakes118.dll\" DllStart"	regsvr32.exe

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\{3e83bb0a-7f16-6a90-d402-41d7c5392d16}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{3e83bb0a-7f16-6a90-d402-41d7c5392d16}\NoExplorer = "\"\""	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3e83bb0a-7f16-6a90-d402-41d7c5392d16}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3e83bb0a-7f16-6a90-d402-41d7c5392d16}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ea96d4a1902343c7219441cd600e3a30_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3e83bb0a-7f16-6a90-d402-41d7c5392d16}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3e83bb0a-7f16-6a90-d402-41d7c5392d16}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3e83bb0a-7f16-6a90-d402-41d7c5392d16}\ = "targetedbanner browser optimizer"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2156	2524	regsvr32.exe	28
PID 2524 wrote to memory of 2156	2524	regsvr32.exe	28
PID 2524 wrote to memory of 2156	2524	regsvr32.exe	28
PID 2524 wrote to memory of 2156	2524	regsvr32.exe	28
PID 2524 wrote to memory of 2156	2524	regsvr32.exe	28
PID 2524 wrote to memory of 2156	2524	regsvr32.exe	28
PID 2524 wrote to memory of 2156	2524	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ea96d4a1902343c7219441cd600e3a30_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ea96d4a1902343c7219441cd600e3a30_JaffaCakes118.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads