f4495e080c5b921f0e2bfdb945c1b1642d0c0b81043a38af081bfbec99e34007

Analysis

max time kernel
93s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2024, 12:18

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General

Target

f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe
Size

851KB
MD5

f5ff3a9da62cda3d5a0aedf6e470207b
SHA1

8dc317b843668b092890458b919774f9fb98a2ad
SHA256

f4495e080c5b921f0e2bfdb945c1b1642d0c0b81043a38af081bfbec99e34007
SHA512

0e28abc3acd7847a6b1333f4932758500e4ae281fb749f704bcab2144ce1ae869165f46827ac32a0460c630cb4ffdb8b99ed9a4052ca39e7e14a3ec982d8934f
SSDEEP

24576:wwGRmervjUoDEgfnImcJaBhYtTRTbPybK7:w7zQoRfAJa/yTRnPyW

Score

8^/10

adware discovery persistence stealer

Malware Config

Signatures

Event Triggered Execution: Image File Execution Options Injection 1 TTPs 2 IoCs

persistence

Image File Execution Options Injection

T1546.012

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ctfmon.exe	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ctfmon.exe\Debugger = "C:\\Windows\\system32\\ctfmon_lu.exe"	regsvr32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
4788	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 3 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\{70A23A0B-7885-314B-920B-CC593D4C8095}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{70A23A0B-7885-314B-920B-CC593D4C8095}\IExplore = "1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	regsvr32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\xwr93185.dll	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ctfmon_lu.exe	regsvr32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe

Modifies registry class 41 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID\ = "{70A23A0B-7885-314B-920B-CC593D4C8095}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\xwr93185.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\TypeLib\ = "{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70A23A0B-7885-314B-920B-CC593D4C8095}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70A23A0B-7885-314B-920B-CC593D4C8095}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\TypeLib\ = "{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70A23A0B-7885-314B-920B-CC593D4C8095}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70A23A0B-7885-314B-920B-CC593D4C8095}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}\1.0\ = "LIB"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}\1.0\HELPDIR\ = "C:\\Windows\\SysWow64\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\ = "IDOMPeek"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70A23A0B-7885-314B-920B-CC593D4C8095}\ProgID\ = "D.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70A23A0B-7885-314B-920B-CC593D4C8095}\InprocServer32\ = "C:\\Windows\\SysWow64\\xwr93185.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70A23A0B-7885-314B-920B-CC593D4C8095}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70A23A0B-7885-314B-920B-CC593D4C8095}\VersionIndependentProgID\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID\ = "{70A23A0B-7885-314B-920B-CC593D4C8095}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70A23A0B-7885-314B-920B-CC593D4C8095}\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F0606A91-DE7B-3DE1-B4CE-D1CA282B1B2E}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\ = "IDOMPeek"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA7BC5E0-4BBA-36A9-AE78-6505D5AD80BB}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 4788	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	82
PID 2712 wrote to memory of 4788	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	82
PID 2712 wrote to memory of 4788	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	82
PID 2712 wrote to memory of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83
PID 2712 wrote to memory of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83
PID 2712 wrote to memory of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83
PID 2712 wrote to memory of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83
PID 2712 wrote to memory of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83
PID 2712 wrote to memory of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83
PID 2712 wrote to memory of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83
PID 2712 wrote to memory of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83
PID 2712 wrote to memory of 3360	2712	f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s C:\Windows\system32\xwr93185.dll
  2⤵
  - Event Triggered Execution: Image File Execution Options Injection
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4788
- C:\Users\Admin\AppData\Local\Temp\f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f5ff3a9da62cda3d5a0aedf6e470207b_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Privilege Escalation

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\xwr93185.dll

Filesize
212KB

MD5
e4972f5f94b4065acfee134c5637a06c

SHA1
23b12b9deea35c5044d12fa5a028018f07222878

SHA256
aa4fd2b1becc8c503da8a93ca706309a42ab20e6a45d99dc927ce526f9087354

SHA512
a8f25d4776944977586c9ea00e4d45f9a53d235b6d3109edd3f8e3b92e13c671dc3bd335e0a1799ae27bb8a1e1c2236f544d6f38b77329f5c487ff36f47f937c

Download Submit
memory/3360-3-0x0000000000400000-0x0000000000497000-memory.dmp

Filesize
604KB

Download
memory/3360-5-0x0000000000400000-0x0000000000497000-memory.dmp

Filesize
604KB

Download
memory/3360-7-0x0000000000400000-0x0000000000497000-memory.dmp

Filesize
604KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads