ec841514243b0dfe781d1469c5d9cd2fab060b0f4d3ac988b763acdc36f0331e

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 14:16

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General

Target

af8ceb21d8d869c524caae80b590823d_JaffaCakes118.dll
Size

232KB
MD5

af8ceb21d8d869c524caae80b590823d
SHA1

602415d4521457a8ad1883433641b0b7fbec0287
SHA256

ec841514243b0dfe781d1469c5d9cd2fab060b0f4d3ac988b763acdc36f0331e
SHA512

7bdcb5c6c5e8946a53f1449be0786560e2fe64f62ac350c4744a3d0cdb9138dbfda949236d8bcc9977e47b6905c3d992134e0c5b3b1167fe25708526b41b8a00
SSDEEP

6144:23NhMt1fi7z5DwmUi55bjOePHpUPwBu81TRu6pfumU/zLQ:23kt1fiZDwcbjOeK2tTRu6JEY

Score

7^/10

adware discovery stealer upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3488-0-0x0000000000770000-0x0000000000813000-memory.dmp	upx
behavioral2/memory/3488-1-0x0000000000770000-0x0000000000813000-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\{CC01FC6C-B899-93FF-8843-ABE11422543B}	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B899-93FF-8843-ABE11422543B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\af8ceb21d8d869c524caae80b590823d_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\af8ceb21d8d869c524caae80b590823d_JaffaCakes118.xx	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\af8ceb21d8d869c524caae80b590823d_JaffaCakes118.xx\Clsid\ = "{CC01FC6C-B899-93FF-8843-ABE11422543B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\af8ceb21d8d869c524caae80b590823d_JaffaCakes118.xx\ = "xx"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\af8ceb21d8d869c524caae80b590823d_JaffaCakes118.xx\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B899-93FF-8843-ABE11422543B}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B899-93FF-8843-ABE11422543B}\ProgID\ = "af8ceb21d8d869c524caae80b590823d_JaffaCakes118.xx"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B899-93FF-8843-ABE11422543B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B899-93FF-8843-ABE11422543B}\ = "xx"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B899-93FF-8843-ABE11422543B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-B899-93FF-8843-ABE11422543B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4560 wrote to memory of 3488	4560	regsvr32.exe	84
PID 4560 wrote to memory of 3488	4560	regsvr32.exe	84
PID 4560 wrote to memory of 3488	4560	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\af8ceb21d8d869c524caae80b590823d_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\af8ceb21d8d869c524caae80b590823d_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3488

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/3488-0-0x0000000000770000-0x0000000000813000-memory.dmp

Filesize
652KB

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memory/3488-1-0x0000000000770000-0x0000000000813000-memory.dmp

Filesize
652KB

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