d4173e6916d9acf577b6c4fbf9946cce4b2fa15b5c0cb30034b68aea647015c5

Analysis

max time kernel
122s
max time network
130s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
25/07/2024, 22:06

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General

Target

716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe
Size

281KB
MD5

716c7e7d65eb00b2d715ffe2bc9a39d7
SHA1

0d346238a2930666d3ee40ac96687ea7c43adcf2
SHA256

d4173e6916d9acf577b6c4fbf9946cce4b2fa15b5c0cb30034b68aea647015c5
SHA512

0b20fa732cdafd2d8e511328f88974d517fd886afef4cab4a25cb26bbb0a588360e433b04180597914b007f23f3ee5c2f295e6bd01bd428b8917d7f2e5ba4976
SSDEEP

6144:VS2ZsxHWugIcdIx0+heBo+iqgn3OzDsvJVC76teXiLiP9:82ZsxHFgn80+qhf2YIT3iP9

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\\ctfmonofb.exe"	regsvr32.exe

Loads dropped DLL 1 IoCs

pid	Process
2820	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	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{951A4FAB-DFD8-361A-87BD-3DF81431D643}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{951A4FAB-DFD8-361A-87BD-3DF81431D643}\IExplore = "1"	regsvr32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ch81544.dll	716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ctfmonofb.exe	regsvr32.exe

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 2 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	716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 41 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{951A4FAB-DFD8-361A-87BD-3DF81431D643}\ProgID\ = "D.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{951A4FAB-DFD8-361A-87BD-3DF81431D643}\VersionIndependentProgID\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}\1.0\HELPDIR\ = "C:\\Windows\\SysWow64\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID\ = "{951A4FAB-DFD8-361A-87BD-3DF81431D643}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{951A4FAB-DFD8-361A-87BD-3DF81431D643}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{951A4FAB-DFD8-361A-87BD-3DF81431D643}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{951A4FAB-DFD8-361A-87BD-3DF81431D643}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{951A4FAB-DFD8-361A-87BD-3DF81431D643}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}\1.0\ = "LIB"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{951A4FAB-DFD8-361A-87BD-3DF81431D643}\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\ch81544.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\ = "IDOMPeek"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\ = "IDOMPeek"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\TypeLib\ = "{52EAB544-E8CF-3031-AF16-8E1B67705E9B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{951A4FAB-DFD8-361A-87BD-3DF81431D643}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID\ = "{951A4FAB-DFD8-361A-87BD-3DF81431D643}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{951A4FAB-DFD8-361A-87BD-3DF81431D643}\InprocServer32\ = "C:\\Windows\\SysWow64\\ch81544.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{52EAB544-E8CF-3031-AF16-8E1B67705E9B}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2B609D43-ECD0-3A2F-95D6-2075D66B7C1D}\TypeLib\ = "{52EAB544-E8CF-3031-AF16-8E1B67705E9B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2820	2652	716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe	30
PID 2652 wrote to memory of 2820	2652	716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe	30
PID 2652 wrote to memory of 2820	2652	716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe	30
PID 2652 wrote to memory of 2820	2652	716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe	30
PID 2652 wrote to memory of 2820	2652	716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe	30
PID 2652 wrote to memory of 2820	2652	716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe	30
PID 2652 wrote to memory of 2820	2652	716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\716c7e7d65eb00b2d715ffe2bc9a39d7_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s C:\Windows\system32\ch81544.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:2820

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

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\ch81544.dll

Filesize
220KB

MD5
ff3a4c49189c9b6fea60fbb4ada6f3ce

SHA1
a00efa02227c6cfb01301db23b2cfe5bd200a556

SHA256
f75282899864b9c20f71fe153ab1187671791c9454a5d4730138cffb0c156118

SHA512
db13b55693c25e1401733f5ff32a34a5fda85301c20d9ea8c2d53bb1ef52c6413d06c9568d26360bcaf9e00fcc671a3edf86e9374f22febeb7467ffc40a57ef7

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads