888e8f80bc8681f7c0743ce8bb29224cfaca3ddd8d54dd13f03deb2e28f57234

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
08/09/2024, 17:03

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General

Target

d4d9388736ca601efd16498b1dfbd095_JaffaCakes118.dll
Size

542KB
MD5

d4d9388736ca601efd16498b1dfbd095
SHA1

8128f76d517f9c3bc9f3b53c5e4763fe233a1570
SHA256

888e8f80bc8681f7c0743ce8bb29224cfaca3ddd8d54dd13f03deb2e28f57234
SHA512

e5fac6765d59097874c1480b6a817fea960d1411c5fc8787fd9b72dd3abfafdf3db03c9f3aa066d8bc414e5c14b2f40bb17d26b94f6603a9c5f5d4a56aa161fe
SSDEEP

12288:II2nJe2M67FFg+CT8K99coEpSl9eENEvpIXdGpjQIITB2Zz3gON:nss6E+C79ioEpSeEDxTB2ZzlN

Score

6^/10

adware discovery stealer

Malware Config

Signatures

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\{531c7426-4788-a5b6-5438-9369105defff}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{531c7426-4788-a5b6-5438-9369105defff}\NoExplorer = "\"\""	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 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{531c7426-4788-a5b6-5438-9369105defff}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{531c7426-4788-a5b6-5438-9369105defff}\ = "addestination"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{531c7426-4788-a5b6-5438-9369105defff}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{531c7426-4788-a5b6-5438-9369105defff}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d4d9388736ca601efd16498b1dfbd095_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{531c7426-4788-a5b6-5438-9369105defff}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2132	2264	regsvr32.exe	30
PID 2264 wrote to memory of 2132	2264	regsvr32.exe	30
PID 2264 wrote to memory of 2132	2264	regsvr32.exe	30
PID 2264 wrote to memory of 2132	2264	regsvr32.exe	30
PID 2264 wrote to memory of 2132	2264	regsvr32.exe	30
PID 2264 wrote to memory of 2132	2264	regsvr32.exe	30
PID 2264 wrote to memory of 2132	2264	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\d4d9388736ca601efd16498b1dfbd095_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\d4d9388736ca601efd16498b1dfbd095_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2132

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

Windows 7 deprecation

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