Overview
overview
7Static
static
305df8d890e...18.exe
windows7-x64
705df8d890e...18.exe
windows10-2004-x64
7$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...ib.dll
windows7-x64
3$PLUGINSDI...ib.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows7-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$R0.dll
windows7-x64
1$R0.dll
windows10-2004-x64
1$R2/NSIS.L...2_.exe
windows7-x64
1$R2/NSIS.L...2_.exe
windows10-2004-x64
1$SYSDIR/DWSHK80.dll
windows7-x64
1$SYSDIR/DWSHK80.dll
windows10-2004-x64
1$SYSDIR/MSVBVM60.dll
windows7-x64
1$SYSDIR/MSVBVM60.dll
windows10-2004-x64
1$SYSDIR/VB6KO.dll
windows7-x64
1$SYSDIR/VB6KO.dll
windows10-2004-x64
1$SYSDIR/dwsbc80.dll
windows7-x64
1$SYSDIR/dwsbc80.dll
windows10-2004-x64
1$SYSDIR/dw...80.dll
windows7-x64
1$SYSDIR/dw...80.dll
windows10-2004-x64
1UrlUpdate.exe
windows7-x64
7UrlUpdate.exe
windows10-2004-x64
7efbbar.dll
windows7-x64
1efbbar.dll
windows10-2004-x64
1efsbar.dll
windows7-x64
1efsbar.dll
windows10-2004-x64
1iewindow.exe
windows7-x64
1iewindow.exe
windows10-2004-x64
1nnlogon.exe
windows7-x64
1nnlogon.exe
windows10-2004-x64
1Analysis
- max time kernel
121s - max time network
122s - platform
windows7_x64 - resource
win7-20240419-en - resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system - submitted
20/06/2024, 12:11
Static task
static1
Behavioral task
behavioral1
Sample
05df8d890eb18614a7d206b41453d306_JaffaCakes118.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
05df8d890eb18614a7d206b41453d306_JaffaCakes118.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/TypeLib.dll
Resource
win7-20240220-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/TypeLib.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240611-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral9
Sample
$R0.dll
Resource
win7-20240611-en
Behavioral task
behavioral10
Sample
$R0.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral11
Sample
$R2/NSIS.Library.RegTool.v3.$_2_.exe
Resource
win7-20240611-en
Behavioral task
behavioral12
Sample
$R2/NSIS.Library.RegTool.v3.$_2_.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral13
Sample
$SYSDIR/DWSHK80.dll
Resource
win7-20240221-en
Behavioral task
behavioral14
Sample
$SYSDIR/DWSHK80.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral15
Sample
$SYSDIR/MSVBVM60.dll
Resource
win7-20240220-en
Behavioral task
behavioral16
Sample
$SYSDIR/MSVBVM60.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral17
Sample
$SYSDIR/VB6KO.dll
Resource
win7-20240611-en
Behavioral task
behavioral18
Sample
$SYSDIR/VB6KO.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral19
Sample
$SYSDIR/dwsbc80.dll
Resource
win7-20231129-en
Behavioral task
behavioral20
Sample
$SYSDIR/dwsbc80.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral21
Sample
$SYSDIR/dwshengine80.dll
Resource
win7-20240419-en
Behavioral task
behavioral22
Sample
$SYSDIR/dwshengine80.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral23
Sample
UrlUpdate.exe
Resource
win7-20240611-en
Behavioral task
behavioral24
Sample
UrlUpdate.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral25
Sample
efbbar.dll
Resource
win7-20240611-en
Behavioral task
behavioral26
Sample
efbbar.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral27
Sample
efsbar.dll
Resource
win7-20240221-en
Behavioral task
behavioral28
Sample
efsbar.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral29
Sample
iewindow.exe
Resource
win7-20240611-en
Behavioral task
behavioral30
Sample
iewindow.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral31
Sample
nnlogon.exe
Resource
win7-20240508-en
Behavioral task
behavioral32
Sample
nnlogon.exe
Resource
win10v2004-20240508-en
General
- Target $SYSDIR/dwshengine80.dll
- Size 137KB
- Sample240620-pczehs1bpr
- SHA256 a8ab488c1ffeed943a68ce7f72fa2eb1b9b21b62c01fbd405a93906a4b357621
- MD5 df901a23e6da0cad1981f0a7c13fbf24
- SHA1 78f8f8e857e5ce4dce9fdc6658b5780b07167df7
- SHA512 1d530caccd728006b1c169a9684044b45384ff4caca02f95c26e15339c4bcfad00f70a85b9f3b6d6d84aed242536ecea454636688e33fa6c6558f67378fc8228
- SSDEEP 3072:jVEYo+V9rYoQ7/pnDeZtVbbOtF4759qDD2:jVEYdHE/CbOto59
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Modifies registry class 10 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR\\dwshengine80.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$SYSDIR" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7E1A422E-C5D0-41E7-BC80-DEDDB49E1FCF}\1.0\ = "dwSHEngine80 1.0 Type Library" regsvr32.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1740 wrote to memory of 1760 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1760 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1760 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1760 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1760 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1760 1740 regsvr32.exe 28 PID 1740 wrote to memory of 1760 1740 regsvr32.exe 28