Overview
overview
7Static
static
3ed0601de9d...18.exe
windows7-x64
7ed0601de9d...18.exe
windows10-2004-x64
7$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$_2_/$R0.dll
windows7-x64
6$_2_/$R0.dll
windows10-2004-x64
6$_2_/$R2/N...4_.exe
windows7-x64
1$_2_/$R2/N...4_.exe
windows10-2004-x64
1Analysis
- max time kernel
117s - max time network
121s - platform
windows7_x64 - resource
win7-20240319-en - resource tags
arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system - submitted
11/04/2024, 08:46
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
ed0601de9daaf2befcc7d488324c2b39_JaffaCakes118.exe
Resource
win7-20240221-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
ed0601de9daaf2befcc7d488324c2b39_JaffaCakes118.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
6 signatures
150 seconds
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20231129-en
windows7-x64
2 signatures
150 seconds
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-en
windows10-2004-x64
2 signatures
150 seconds
Behavioral task
behavioral5
Sample
$_2_/$R0.dll
Resource
win7-20240319-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral6
Sample
$_2_/$R0.dll
Resource
win10v2004-20240226-en
windows10-2004-x64
4 signatures
150 seconds
Behavioral task
behavioral7
Sample
$_2_/$R2/NSIS.Library.RegTool.v2.$_4_.exe
Resource
win7-20240221-en
windows7-x64
0 signatures
150 seconds
Behavioral task
behavioral8
Sample
$_2_/$R2/NSIS.Library.RegTool.v2.$_4_.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
0 signatures
150 seconds
General
- Target $_2_/$R0.dll
- Size 156KB
- Sample240411-kpdlcsbb2t
- SHA256 1c2a6089585666c2c9ce8b738618f5f30ff12b4100e6bfdc6334bc53a8937726
- MD5 ca0b2a57ba75f9520bea84ba04d684d9
- SHA1 fd751510f0ead9e26703f534c70c2abdc37ee78b
- SHA512 750025c5cbbf3f71ab44c00deb681760bf6a97f6d83e4f96c81030185fe803ef64de31962d77d1392c85f1a4983bbf3e64eae74df807166adc7a01a0324324f1
- SSDEEP 3072:I4EPpQaK3SXZVEMcdt8YR1MTVa/oGabn:I9GaBVEFVcTV8a
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{295AB8C6-FB22-4D17-8834-064E2BA0A6F0} regsvr32.exe - Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system.ini regsvr32.exe - Modifies registry class 31 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$_2_" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$_2_\\$R0.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{295AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$_2_\\$R0.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{295AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{295AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{295AB8C6-FB22-4D17-8834-064E2BA0A6F0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{295AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{285AB8C5-FB22-4D17-8834-064E2BA0A6F0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{295AB8C6-FB22-4D17-8834-064E2BA0A6F0}\ = "Info cache" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\ = "Pbtoo2s 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{295AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS\ = "0" regsvr32.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2348 wrote to memory of 1676 2348 regsvr32.exe 28 PID 2348 wrote to memory of 1676 2348 regsvr32.exe 28 PID 2348 wrote to memory of 1676 2348 regsvr32.exe 28 PID 2348 wrote to memory of 1676 2348 regsvr32.exe 28 PID 2348 wrote to memory of 1676 2348 regsvr32.exe 28 PID 2348 wrote to memory of 1676 2348 regsvr32.exe 28 PID 2348 wrote to memory of 1676 2348 regsvr32.exe 28
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\$_2_\$R0.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2348 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\$_2_\$R0.dll2⤵
- Installs/modifies Browser Helper Object
- Drops file in Windows directory
- Modifies registry class
PID:1676
-