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Analysis
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max time kernel
108s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
30/12/2023, 06:57
Static task
static1
Behavioral task
behavioral1
Sample
119749d597548e920588cb8cbe72ff2e.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
119749d597548e920588cb8cbe72ff2e.exe
Resource
win10v2004-20231215-en
General
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Target
119749d597548e920588cb8cbe72ff2e.exe
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Size
1.3MB
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MD5
119749d597548e920588cb8cbe72ff2e
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SHA1
0e85ceb4ec72720deca37803d873ccdacef9af9f
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SHA256
1ea1028025522a23f44fd7420403f488621eeaf8f4bb5b6b47f8bc7b213f06a6
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SHA512
20e579cef074438fd130bb8ceea3b6ab09ba5c9c49a675b64ec0ffd843ab6a3b2b2345a9b77805650352260e9c748f4de7e3f6abb373cc9377821e5ba4231e27
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SSDEEP
24576:y6rT9SSZ7+w8gLDw0PxEUB8Yoyl2G5eTJMvyTaNAUnAyFmn8Wse:yC9Sy7+3gY0PxEUBroyl2DrTaNhOFse
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2760 JKNBMS.exe -
Loads dropped DLL 4 IoCs
pid Process 2464 119749d597548e920588cb8cbe72ff2e.exe 2464 119749d597548e920588cb8cbe72ff2e.exe 2760 JKNBMS.exe 2760 JKNBMS.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\nbclient = "C:\\Program Files\\5678soft\\nbclient\\jknbms.exe" JKNBMS.exe -
Drops file in Program Files directory 28 IoCs
description ioc Process File opened for modification C:\Program Files\5678soft\nbclient\SoapWebService.dll 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\nbmscc.ser 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\JKNBMS.exe 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\JLEncrypt.dll 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\SetParam.exe 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\INSTALL.LOG 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\MYTIMER.sys 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\SetParam.exe 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\UNWISE.INI 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\nbmscc.ser 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\__tmp_rar_sfx_access_check_259408212 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\JKServerPS.dll 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\MYTIMER.sys 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\UNWISE.INI 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\JKServerPS.dll 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\UNWISE.EXE 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\ErrorLog.txt JKNBMS.exe File created C:\Program Files\5678soft\nbclient\IEHELPER.dll 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\IEHELPER.dll 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\ErrorLog.txt 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\ErrorLog.txt 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\SoapWebService.dll 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\UNWISE.EXE 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\INSTALL.LOG 119749d597548e920588cb8cbe72ff2e.exe File opened for modification C:\Program Files\5678soft\nbclient\JKNBMS.exe 119749d597548e920588cb8cbe72ff2e.exe File created C:\Program Files\5678soft\nbclient\JLEncrypt.dll 119749d597548e920588cb8cbe72ff2e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main JKNBMS.exe -
Modifies Internet Explorer start page 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "http://www.xjshoping.com/" JKNBMS.exe -
Suspicious behavior: LoadsDriver 13 IoCs
pid Process 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found 472 Process not Found -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2464 wrote to memory of 2760 2464 119749d597548e920588cb8cbe72ff2e.exe 20 PID 2464 wrote to memory of 2760 2464 119749d597548e920588cb8cbe72ff2e.exe 20 PID 2464 wrote to memory of 2760 2464 119749d597548e920588cb8cbe72ff2e.exe 20 PID 2464 wrote to memory of 2760 2464 119749d597548e920588cb8cbe72ff2e.exe 20
Processes
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C:\Users\Admin\AppData\Local\Temp\119749d597548e920588cb8cbe72ff2e.exe"C:\Users\Admin\AppData\Local\Temp\119749d597548e920588cb8cbe72ff2e.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2464 -
C:\Program Files\5678soft\nbclient\JKNBMS.exe"C:\Program Files\5678soft\nbclient\JKNBMS.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
PID:2760
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