afc3524257abba6f482dfa6f842ce4a21f143774090952ddc385b30e9c99c56e

Analysis

max time kernel
138s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 19:57

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General

Target

c17546c4b075019c0759d8725676eaf9_JaffaCakes118.dll
Size

86KB
MD5

c17546c4b075019c0759d8725676eaf9
SHA1

7b080a127ae7e59c1c3d9125481054e6242ce54b
SHA256

afc3524257abba6f482dfa6f842ce4a21f143774090952ddc385b30e9c99c56e
SHA512

c7c7f712752863004e2977b3a1ad9bf503698cfe54dd95742c6748563c8e1c6b54702f3fa6f78fc06a91252b218a9adf958e8603b323121c4d2395cf36e25257
SSDEEP

1536:XYvynn+A2VjSCRZO59cRIagrPmvJl5tSS7UWt4ssJjHIEwn22h9coYfGe:Iv4+Ay0XcRpgjmRl/SS7F4scjHIEwVcY

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/1484-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx

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\{C137D562-8AEF-4D1E-9DF8-1AD0D8139135}	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 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C137D562-8AEF-4D1E-9DF8-1AD0D8139135}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C137D562-8AEF-4D1E-9DF8-1AD0D8139135}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C137D562-8AEF-4D1E-9DF8-1AD0D8139135}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c17546c4b075019c0759d8725676eaf9_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C137D562-8AEF-4D1E-9DF8-1AD0D8139135}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 1484	4996	regsvr32.exe	84
PID 4996 wrote to memory of 1484	4996	regsvr32.exe	84
PID 4996 wrote to memory of 1484	4996	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c17546c4b075019c0759d8725676eaf9_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\c17546c4b075019c0759d8725676eaf9_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1484

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/1484-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

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