0618ff4b442e8570ba3f99fc4ffb0337ebf6057dba9fd1e9ee45432a651befe8

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
25-08-2024 19:34

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General

Target

c16d21b396a5fb05f9e37ca03db4a424_JaffaCakes118.dll
Size

157KB
MD5

c16d21b396a5fb05f9e37ca03db4a424
SHA1

79dc22878f5ba6adcea32dfbb782b1e572b44e25
SHA256

0618ff4b442e8570ba3f99fc4ffb0337ebf6057dba9fd1e9ee45432a651befe8
SHA512

7898f598a6a3c0cb1512d7104533edba01493d48d1da50a632c636ed76afad0609ccd22cb7b8615aab172ffb62324f503980f546395807c07ff88eb38cff67a1
SSDEEP

3072:9E5m9koweTbbrMbvT0q8O1cZPzQ7IXMBc+AMP+QfQEhxFyVU78vIjv2sm:n9kwwvP6bQ7yMP+DE8278vIjFm

Score

6^/10

adware bootkit discovery persistence 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\{986488AF-13D5-9DDF-4FEF-9FB88698CFC1}	regsvr32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	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\.key\ = "regfile"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\webbrowser = "{986488AF-13D5-9DDF-4FEF-9FB88698CFC1}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{986488AF-13D5-9DDF-4FEF-9FB88698CFC1}\ = "WebHelper Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Wow6432Node\CLSID\{986488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{986488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c16d21b396a5fb05f9e37ca03db4a424_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{986488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Wow6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\wversion = "3.4.6"	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Wow6432Node\CLSID\{986488AF-13D5-9DDF-4FEF-9FB88698CFC1}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2656	2660	regsvr32.exe	30
PID 2660 wrote to memory of 2656	2660	regsvr32.exe	30
PID 2660 wrote to memory of 2656	2660	regsvr32.exe	30
PID 2660 wrote to memory of 2656	2660	regsvr32.exe	30
PID 2660 wrote to memory of 2656	2660	regsvr32.exe	30
PID 2660 wrote to memory of 2656	2660	regsvr32.exe	30
PID 2660 wrote to memory of 2656	2660	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c16d21b396a5fb05f9e37ca03db4a424_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\c16d21b396a5fb05f9e37ca03db4a424_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

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/2656-0-0x0000000010000000-0x0000000010035000-memory.dmp

Filesize
212KB

Download
memory/2656-1-0x0000000000200000-0x0000000000230000-memory.dmp

Filesize
192KB

Download
memory/2656-2-0x00000000001F0000-0x00000000001F3000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads