00f850a90091da8632ba59a3eae55a282189e363d3f10ad7e115a2623841f548

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/04/2024, 19:44

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General

Target

e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe
Size

29KB
MD5

e842c3d491979cbdaaac9cfd23eb1261
SHA1

dc880ad1b362248ff794e4f72684ed6e5c6473df
SHA256

00f850a90091da8632ba59a3eae55a282189e363d3f10ad7e115a2623841f548
SHA512

e315c1aca05f939c0f564654930cfd15e27030960e45d9ba6dcfe3ba4e23b64d226e9894701b4af37d9d41b20b51435b593fe7ba169d1e0a8428111120f4b792
SSDEEP

768:2MJqALhhWrlgyLCyIMxgdOl4hPuswaQA9Ow2BTrf8tY:xJfHWr2DOxgo4hmcQ2v2RDV

Score

7^/10

adware stealer

Malware Config

Signatures

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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
2248	Regsvr32.exe

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\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}	Regsvr32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\XunLeiBHO_001.dll	e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe

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

System Information Discovery
T1082

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.1	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.1\ = "Thunder Browser Helper"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder\ = "Thunder Browser Helper"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\VersionIndependentProgID\ = "Thunder.Browser.Helper"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\TypeLib\ = "{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\TypeLib	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\TypeLib\ = "{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\InprocServer32\ = "C:\\Windows\\SysWow64\\XunLeiBHO_001.dll"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\ = "IGetPwd"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder\CurVer	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}\1.0\0\win32	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\ = "IGetPwd"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\TypeLib\Version = "1.0"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.1\CLSID	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.1\CLSID\ = "{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder\CurVer\ = "Thunder.1"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\VersionIndependentProgID	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\InprocServer32\ThreadingModel = "Both"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}\1.0	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}\1.0\ = "GetHtmlPwd 1.0 Type Library"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}\1.0\FLAGS	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}\1.0\0	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\XunLeiBHO_001.dll"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}\1.0\HELPDIR\ = "C:\\Windows\\System32"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\ProxyStubClsid32	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\InprocServer32	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\TypeLib	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\ = "Thunder Browser Helper"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\Programmable	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\TypeLib	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}\1.0\FLAGS\ = "0"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\TypeLib\ = "{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder\CLSID	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder\CLSID\ = "{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\ProgID	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63B2D652-EAD9-4D6E-93ED-2CC51D22CF02}\ProgID\ = "Thunder.1"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{840DD6BB-C734-4361-89E9-E3D6DE0AE38A}\1.0\HELPDIR	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\ProxyStubClsid32	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A271618B-8C99-49BF-817A-DFFF5A624B36}\TypeLib\Version = "1.0"	Regsvr32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 2248	4512	e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe	84
PID 4512 wrote to memory of 2248	4512	e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe	84
PID 4512 wrote to memory of 2248	4512	e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe	84
PID 4512 wrote to memory of 3240	4512	e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe	88
PID 4512 wrote to memory of 3240	4512	e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe	88
PID 4512 wrote to memory of 3240	4512	e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e842c3d491979cbdaaac9cfd23eb1261_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Windows\SysWOW64\Regsvr32.exe
  Regsvr32 /s /c XunLeiBHO_001.dll
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2248
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\cmdd.bat" "
  2⤵
  PID:3240

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\cmdd.bat

Filesize
225B

MD5
71bb6f374873b7af1b82ac72f0228efe

SHA1
09f569ffa157491a03520c656d6d902bfc60813a

SHA256
48a377489e7f675300fcdb98870b6dc44f4ced15826ebbfb27bc07dc50a34d55

SHA512
bc691e4b6fefbda4392a360cb0de8870f116896f4fc126ccb4531bbad640e88305dafa8ba79ca500adffc1d997eaedcff94e11d4c08a27fce011d7145500a93d

Download Submit
C:\Windows\SysWOW64\XunLeiBHO_001.dll

Filesize
64KB

MD5
5fa996701660bf91036d834ec5447e97

SHA1
44ee59b262683dec52e7884d711ba5b2a32ceb31

SHA256
678ec705dce410f612ed8dae9c6848835ccf7012e8f9463a556e93f10d4a68e1

SHA512
4ef36a0bf3f52bb0c56023bf7a153b05ecb5598afcca397f8b84a0567bff46a068b558c6e07f56d9f01b823cedab8a1da985d817392614c1c729d90445a6ae51

Download Submit