Overview
overview
7Static
static
7Important/...id.dll
windows7-x64
1Important/...id.dll
windows10-2004-x64
1Important/...EL.dll
windows7-x64
7Important/...EL.dll
windows10-2004-x64
7UpDate.exe
windows7-x64
7UpDate.exe
windows10-2004-x64
7WebBrowser.exe
windows7-x64
7WebBrowser.exe
windows10-2004-x64
7精易编�...��.exe
windows7-x64
7精易编�...��.exe
windows10-2004-x64
7Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
12-05-2024 18:20
Behavioral task
behavioral1
Sample
Important/DiDaGrid.dll
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
Important/DiDaGrid.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
Important/SkinH_EL.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
Important/SkinH_EL.dll
Resource
win10v2004-20240426-en
Behavioral task
behavioral5
Sample
UpDate.exe
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
UpDate.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral7
Sample
WebBrowser.exe
Resource
win7-20240508-en
Behavioral task
behavioral8
Sample
WebBrowser.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral9
Sample
精易编程助手.exe
Resource
win7-20240419-en
Behavioral task
behavioral10
Sample
精易编程助手.exe
Resource
win10v2004-20240426-en
General
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Target
精易编程助手.exe
-
Size
671KB
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MD5
d0b2287a0ba3c3810f64c6e212f1ca62
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SHA1
286a74915d26ed5773cb57d03dd6623906c22260
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SHA256
a66d9b8ee0032354d971519d97f16a46224d580d11e025cc1b4b48085c050612
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SHA512
3a797007fae207a5593e1f365b6c83e03268866e4a8d33bcc04489dc6991a69051ddf894da233e5bff94aa9b825d81f4c324123049e885f527a044a17c3ca0e8
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SSDEEP
12288:DfhdYgJ+rqbNiynQgp20G0msmGXSRoDFgQXBLXyblGp/SmfPQiToS:DfhdYgJbHQgp20G0ms5XSRoDFg4XybUL
Malware Config
Signatures
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Loads dropped DLL 3 IoCs
pid Process 4892 regsvr32.exe 1744 精易编程助手.exe 1744 精易编程助手.exe -
resource yara_rule behavioral10/memory/1744-0-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-6-0x0000000010000000-0x000000001003D000-memory.dmp upx behavioral10/memory/1744-4-0x0000000010000000-0x000000001003D000-memory.dmp upx behavioral10/memory/1744-13-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-15-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-17-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-18-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-20-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-22-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-24-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-26-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-28-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-30-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-32-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-34-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-36-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-38-0x0000000000400000-0x0000000000748000-memory.dmp upx behavioral10/memory/1744-40-0x0000000000400000-0x0000000000748000-memory.dmp upx -
Drops file in System32 directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\DiDaGrid.ocx 精易编程助手.exe File created C:\Windows\SysWOW64\DiDaGrid.ocx 精易编程助手.exe -
Modifies registry class 64 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\ = "DiDaGrid Control" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564}\1.0\HELPDIR\ = "C:\\Windows\\system32" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\Version\ = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\ToolboxBitmap32\ = "C:\\Windows\\SysWow64\\DiDaGrid.ocx, 1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\ToolboxBitmap32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\Control regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\Control\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DIDAGRID.DiDaGridCtrl.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DIDAGRID.DiDaGridCtrl.1\ = "DiDaGrid Control" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3DEF539E-66A7-496A-BBAD-7E33A31647D5} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3DEF539E-66A7-496A-BBAD-7E33A31647D5}\ = "DiDaGrid Property Page" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DIDAGRID.DiDaGridCtrl.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\ = "_DDiDaGrid" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\TypeLib\ = "{BDD5E40E-8C87-473B-8027-A7D8A81CE564}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\MiscStatus\1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\Version regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564}\1.0\FLAGS\ = "2" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3DEF539E-66A7-496A-BBAD-7E33A31647D5}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564}\1.0\ = "DiDaGrid Control For Free" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\ = "_DDiDaGrid" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\TypeLib\ = "{BDD5E40E-8C87-473B-8027-A7D8A81CE564}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\TypeLib\ = "{BDD5E40E-8C87-473B-8027-A7D8A81CE564}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\InprocServer32\ = "C:\\Windows\\SysWow64\\DiDaGrid.ocx" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\DiDaGrid.ocx" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\ = "_DDiDaGridEvents" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3DEF539E-66A7-496A-BBAD-7E33A31647D5}\InprocServer32\ = "C:\\Windows\\SysWow64\\DiDaGrid.ocx" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\TypeLib\ = "{BDD5E40E-8C87-473B-8027-A7D8A81CE564}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\ = "_DDiDaGridEvents" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDD5E40E-8C87-473B-8027-A7D8A81CE564}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\ProgID\ = "DIDAGRID.DiDaGridCtrl.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\MiscStatus regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}\MiscStatus\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DIDAGRID.DiDaGridCtrl.1\CLSID\ = "{0F1447E7-E416-4691-9FEC-A8C4E1ACFB7D}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3AE4BB27-46B9-46A0-8817-A3AF282B4BEC}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A50A9EDF-9879-49E3-A09B-333FBA4E0D3D}\TypeLib\ = "{BDD5E40E-8C87-473B-8027-A7D8A81CE564}" regsvr32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1744 精易编程助手.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 1744 精易编程助手.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1744 精易编程助手.exe 1744 精易编程助手.exe 1744 精易编程助手.exe 1744 精易编程助手.exe 1744 精易编程助手.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1744 wrote to memory of 4892 1744 精易编程助手.exe 84 PID 1744 wrote to memory of 4892 1744 精易编程助手.exe 84 PID 1744 wrote to memory of 4892 1744 精易编程助手.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\精易编程助手.exe"C:\Users\Admin\AppData\Local\Temp\精易编程助手.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32 C:\Windows\system32\DiDaGrid.ocx /s2⤵
- Loads dropped DLL
- Modifies registry class
PID:4892
-
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
840KB
MD5b4f3df7bcb8b0031629911e5b4f89ee9
SHA1f80ffcbf144ab85901941f5fb66f1b22a346475f
SHA256ef2dc1bba4ed93e99d37afe3097e5be917fbb1bacac7df3c24c9146d097dd5d9
SHA5124f2d80ae45bee18b1f8dee35a6c21b1a5ac772c5d96b0cabb602603d06c387e59e6c5a11598b44a9d5090279ce1b11e44c362b88950e1139ee4c201e24107fce