c631b79a19f3b796db0b140643cfa8737a7db5fb3e1a507500763cf7e1f95840

Analysis

max time kernel
134s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 12:12

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General

Target

b7951090423db83917cf5ed53939a008_JaffaCakes118.dll
Size

1012KB
MD5

b7951090423db83917cf5ed53939a008
SHA1

3382ceb3a827647e87b03ddfbe10f0b0bfaf441c
SHA256

c631b79a19f3b796db0b140643cfa8737a7db5fb3e1a507500763cf7e1f95840
SHA512

ac70136c2cc7c0935dc3dcf7e350e1e6f5fa06aced59adf17618b3f7c95f5d0af4c19cb568e3b0e339247719ab20d0eb71761e5c244db89d48958ab60a962998
SSDEEP

24576:AT0BPMjovFV3kPvBIX3Zqp8pXLAehGzBG:A2DkZsv

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\{71FC9097-0665-44A7-8C6B-EE14A4E1A576}	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\{71FC9097-0665-44A7-8C6B-EE14A4E1A576}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71FC9097-0665-44A7-8C6B-EE14A4E1A576}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b7951090423db83917cf5ed53939a008_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\b7951090423db83917cf5ed53939a008_JaffaCakes118.security\Clsid\ = "{71FC9097-0665-44A7-8C6B-EE14A4E1A576}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71FC9097-0665-44A7-8C6B-EE14A4E1A576}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71FC9097-0665-44A7-8C6B-EE14A4E1A576}\ = "security"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71FC9097-0665-44A7-8C6B-EE14A4E1A576}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71FC9097-0665-44A7-8C6B-EE14A4E1A576}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\b7951090423db83917cf5ed53939a008_JaffaCakes118.security	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\b7951090423db83917cf5ed53939a008_JaffaCakes118.security\ = "security"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\b7951090423db83917cf5ed53939a008_JaffaCakes118.security\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71FC9097-0665-44A7-8C6B-EE14A4E1A576}\ProgID\ = "b7951090423db83917cf5ed53939a008_JaffaCakes118.security"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2728	3032	regsvr32.exe	91
PID 3032 wrote to memory of 2728	3032	regsvr32.exe	91
PID 3032 wrote to memory of 2728	3032	regsvr32.exe	91

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b7951090423db83917cf5ed53939a008_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b7951090423db83917cf5ed53939a008_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2728

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4464,i,8231329449558834090,4540802069600791165,262144 --variations-seed-version --mojo-platform-channel-handle=4028 /prefetch:8
1⤵
PID:4052

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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