Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
21/08/2026, 15:55
General
- Target dingding.exe
- Size 17.0MB
- Sample260821-tcwe3sshne
- SHA256 5acbb6ee89b38eb2abf81a2b2349a4c97e7c2dd23ad4daf8d5b5b113176fef53
Malware Config
Signatures
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 7 IoCs
- Loads dropped DLL 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- UPX packed file 10 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Modifies Internet Explorer settings 1 TTPs 4 IoCs
- Modifies registry class 50 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\dingding.exe"C:\Users\Admin\AppData\Local\Temp\dingding.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\1870000.exe"C:\Users\Admin\AppData\Local\Temp\1870000.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\noglmmag.exe"C:\Users\Admin\AppData\Local\Temp\noglmmag.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe" shell:::{42A26E9B-DA3D-47C9-7C1E-B493BD065C37}3⤵
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\1dingtalk_downloader.exe"C:\Users\Admin\AppData\Local\Temp\1dingtalk_downloader.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe" /select, "C:\Users\Admin\AppData\Local\Temp\8.5.0-Release.260817002.exe"3⤵
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\8.5.0-Release.260817002.exe"C:\Users\Admin\AppData\Local\Temp\8.5.0-Release.260817002.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\explorer.exe"explorer.exe" "C:\Users\Admin\AppData\Local\Temp\aadrt.dll"2⤵
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C:\Users\Admin\AppData\Local\Temp\NbbWt1Mk.exe"C:\Users\Admin\AppData\Local\Temp\NbbWt1Mk.exe"1⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
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C:\Users\Admin\AppData\Local\Temp\noglmmag.exeC:\Users\Admin\AppData\Local\Temp\noglmmag.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
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C:\Users\Admin\AppData\Local\Temp\Jkq2fPQ.exe"C:\Users\Admin\AppData\Local\Temp\Jkq2fPQ.exe"1⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
1870000.exe
1dingtalk_downloader.exe
CrashReporter.dll
NbbWt1Mk.exe
noglmmag.exe
regsetup.txt
regsetup.txt
config.json
config.json.tmp
memory/1436-88-0x0000000000200000-0x0000000000988000-memory.dmp
memory/1436-85-0x0000000000200000-0x0000000000988000-memory.dmp
memory/1436-113-0x0000000000200000-0x0000000000988000-memory.dmp
memory/1436-111-0x0000000000200000-0x0000000000988000-memory.dmp
memory/1436-25-0x0000000000200000-0x0000000000988000-memory.dmp
memory/1436-93-0x0000000000200000-0x0000000000988000-memory.dmp
memory/1436-89-0x0000000000200000-0x0000000000988000-memory.dmp
memory/1436-35-0x0000000002AF0000-0x0000000002AF1000-memory.dmp
memory/1436-84-0x0000000002AF0000-0x0000000002AF1000-memory.dmp
memory/1436-83-0x0000000000200000-0x0000000000988000-memory.dmp
memory/1436-86-0x0000000000200000-0x0000000000988000-memory.dmp
memory/3036-0-0x0000000000400000-0x000000000047D000-memory.dmp
memory/3944-80-0x000001C20FFF0000-0x000001C210652000-memory.dmp
memory/3944-76-0x000001C20FA00000-0x000001C210062000-memory.dmp
memory/4744-63-0x0000020739920000-0x0000020739F82000-memory.dmp
memory/4744-64-0x0000020739F90000-0x000002073A5F2000-memory.dmp