06b46781988b9f1ca1cd10de5f2e7ae6586646b2c6d1a274f07d5267f40fa171

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
20/06/2024, 09:15

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General

Target

04a2ff9b9480527f2d75cc7ec0ab561d_JaffaCakes118.dll
Size

162KB
MD5

04a2ff9b9480527f2d75cc7ec0ab561d
SHA1

7004685e9228be2c0fbee7cdf82e50b36cb2518c
SHA256

06b46781988b9f1ca1cd10de5f2e7ae6586646b2c6d1a274f07d5267f40fa171
SHA512

541620835718b16fa31254529440eab7139c03841b07e31c6d038a74010c2b514493c73e71b5f4850c60d704d6c65f8e50afffc88408882d5a8582864508e4bb
SSDEEP

3072:c3oCj9q5306ZkNQLTFfdXlp2L7+Ise4xAAQeKz+yMv5TtJ:Aou9O39hL5fDpnBxAAFHdtJ

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\{7698b855-05c1-a661-da10-9b5380704a8f} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\04a2ff9b9480527f2d75cc7ec0ab561d_JaffaCakes118.dll\" DllStub"	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\{1069ffa8-feb5-fbd7-a4c8-b2d71c958c1e}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1069ffa8-feb5-fbd7-a4c8-b2d71c958c1e}\NoExplorer = "\"\""	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1069ffa8-feb5-fbd7-a4c8-b2d71c958c1e}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1069ffa8-feb5-fbd7-a4c8-b2d71c958c1e}\ = "cpmsky browser enhancer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1069ffa8-feb5-fbd7-a4c8-b2d71c958c1e}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1069ffa8-feb5-fbd7-a4c8-b2d71c958c1e}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\04a2ff9b9480527f2d75cc7ec0ab561d_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1069ffa8-feb5-fbd7-a4c8-b2d71c958c1e}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3148 wrote to memory of 1900	3148	regsvr32.exe	91
PID 3148 wrote to memory of 1900	3148	regsvr32.exe	91
PID 3148 wrote to memory of 1900	3148	regsvr32.exe	91

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\04a2ff9b9480527f2d75cc7ec0ab561d_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\04a2ff9b9480527f2d75cc7ec0ab561d_JaffaCakes118.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1900

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 --no-appcompat-clear --mojo-platform-channel-handle=4256 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
1⤵
PID:2172

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