Overview
overview
3Static
static
3Thunder/@�...7).exe
windows7-x64
3Thunder/@�...7).exe
windows10-2004-x64
3Thunder/@�...3).exe
windows7-x64
3Thunder/@�...3).exe
windows10-2004-x64
3Thunder/Co...nt.dll
windows7-x64
1Thunder/Co...nt.dll
windows10-2004-x64
1Thunder/Co...vr.exe
windows7-x64
1Thunder/Co...vr.exe
windows10-2004-x64
1content/download.js
windows7-x64
1content/download.js
windows10-2004-x64
1content/main.js
windows7-x64
1content/main.js
windows10-2004-x64
1content/product.js
windows7-x64
1content/product.js
windows10-2004-x64
1content/public.js
windows7-x64
1content/public.js
windows10-2004-x64
1Thunder/Co...te.dll
windows7-x64
1Thunder/Co...te.dll
windows10-2004-x64
1Thunder/Co...ce.dll
windows7-x64
1Thunder/Co...ce.dll
windows10-2004-x64
1Thunder/Co...nt.dll
windows7-x64
1Thunder/Co...nt.dll
windows10-2004-x64
1Thunder/Co...HO.dll
windows7-x64
1Thunder/Co...HO.dll
windows10-2004-x64
1Thunder/Pr...IM.dll
windows7-x64
1Thunder/Pr...IM.dll
windows10-2004-x64
1Thunder/Pr...tU.dll
windows7-x64
1Thunder/Pr...tU.dll
windows10-2004-x64
3Thunder/Pr...ne.dll
windows7-x64
1Thunder/Pr...ne.dll
windows10-2004-x64
1Thunder/Pr...sk.dll
windows7-x64
1Thunder/Pr...sk.dll
windows10-2004-x64
1Analysis
-
max time kernel
122s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
29-12-2023 22:18
Static task
static1
Behavioral task
behavioral1
Sample
Thunder/@绿化工具(VISTA-WIN7).exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Thunder/@绿化工具(VISTA-WIN7).exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
Thunder/@绿化工具(XP-2003).exe
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
Thunder/@绿化工具(XP-2003).exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral5
Sample
Thunder/ComDlls/BrowserHelp/ThunderComponent.dll
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
Thunder/ComDlls/BrowserHelp/ThunderComponent.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
Thunder/ComDlls/BrowserHelp/XLNonIESvr.exe
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
Thunder/ComDlls/BrowserHelp/XLNonIESvr.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
content/download.js
Resource
win7-20231129-en
Behavioral task
behavioral10
Sample
content/download.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
content/main.js
Resource
win7-20231129-en
Behavioral task
behavioral12
Sample
content/main.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
content/product.js
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
content/product.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral15
Sample
content/public.js
Resource
win7-20231215-en
Behavioral task
behavioral16
Sample
content/public.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral17
Sample
Thunder/ComDlls/LinkSimulate.dll
Resource
win7-20231215-en
Behavioral task
behavioral18
Sample
Thunder/ComDlls/LinkSimulate.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral19
Sample
Thunder/ComDlls/TDAtOnce.dll
Resource
win7-20231129-en
Behavioral task
behavioral20
Sample
Thunder/ComDlls/TDAtOnce.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral21
Sample
Thunder/ComDlls/ThunderAgent.dll
Resource
win7-20231129-en
Behavioral task
behavioral22
Sample
Thunder/ComDlls/ThunderAgent.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral23
Sample
Thunder/ComDlls/XunLeiBHO.dll
Resource
win7-20231215-en
Behavioral task
behavioral24
Sample
Thunder/ComDlls/XunLeiBHO.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral25
Sample
Thunder/Program/BaseIM.dll
Resource
win7-20231215-en
Behavioral task
behavioral26
Sample
Thunder/Program/BaseIM.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral27
Sample
Thunder/Program/BugReportU.dll
Resource
win7-20231215-en
Behavioral task
behavioral28
Sample
Thunder/Program/BugReportU.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral29
Sample
Thunder/Program/ConfigPane.dll
Resource
win7-20231215-en
Behavioral task
behavioral30
Sample
Thunder/Program/ConfigPane.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral31
Sample
Thunder/Program/DllNewTask.dll
Resource
win7-20231215-en
Behavioral task
behavioral32
Sample
Thunder/Program/DllNewTask.dll
Resource
win10v2004-20231215-en
General
-
Target
Thunder/Program/DllNewTask.dll
-
Size
481KB
-
MD5
76df37c492bf44f1f525a29657c582a0
-
SHA1
c7f5db29f225378ea34ac324c54422fad4293875
-
SHA256
3c88afda3b7bbe34ace1a6ecd6328f511777070c33f904d0990904c11b0566ce
-
SHA512
f9df003945a5f9aaa577c64ed869a1c160d3b8e6f5e6d0d3d3eaca1365a154b04d8bd3d6efcdfa9fb8f9dac89d829e6091024ac382424ec20bba026684e863e6
-
SSDEEP
6144:ELH2PAlCYdLwG9gTDdEhheJOwhFeUQxMkIriOrJCV+kO8Z98:ELH2PAlRdZg7JOwhFhwISVEQ98
Malware Config
Signatures
-
Modifies registry class 10 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Xunlei.DllNewTask regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BF919A-608B-44A0-9A99-B25BFE16FE02}\ = "Xunlei.DllNewTask" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Xunlei.DllNewTask\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BF919A-608B-44A0-9A99-B25BFE16FE02}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BF919A-608B-44A0-9A99-B25BFE16FE02}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Thunder\\Program\\DLLNEW~1.DLL" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Xunlei.DllNewTask\ = "Xunlei.DllNewTask" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BF919A-608B-44A0-9A99-B25BFE16FE02} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Xunlei.DllNewTask\CLSID\ = "{58BF919A-608B-44A0-9A99-B25BFE16FE02}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BF919A-608B-44A0-9A99-B25BFE16FE02}\ProgID\ = "Xunlei.DllNewTask" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BF919A-608B-44A0-9A99-B25BFE16FE02}\InProcServer32 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1172 wrote to memory of 2016 1172 regsvr32.exe 28 PID 1172 wrote to memory of 2016 1172 regsvr32.exe 28 PID 1172 wrote to memory of 2016 1172 regsvr32.exe 28 PID 1172 wrote to memory of 2016 1172 regsvr32.exe 28 PID 1172 wrote to memory of 2016 1172 regsvr32.exe 28 PID 1172 wrote to memory of 2016 1172 regsvr32.exe 28 PID 1172 wrote to memory of 2016 1172 regsvr32.exe 28
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\Thunder\Program\DllNewTask.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1172 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\Thunder\Program\DllNewTask.dll2⤵
- Modifies registry class
PID:2016
-