Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
25-04-2024 16:37
General
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Target
Document.doc.scr
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Size
194KB
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MD5
ae811bd6440b425e6777f0ca001a9743
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SHA1
70902540ead269971e149eaff568fb17d04156af
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SHA256
86e17aa882c690ede284f3e445439dfe589d8f36e31cbc09d102305499d5c498
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SHA512
3617d8e77c221525125778cf64f2525136f7958766f5bed0fd7bfe00e7f738017d2840972acc628e4c3471b93cf6d52ccd619f49bdbbcff824c12cac8e1ea88e
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SSDEEP
3072:a6glyuxE4GsUPnliByocWepiHkZmlkQIQP6fo:a6gDBGpvEByocWeQwLAPm
Malware Config
Signatures
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Renames multiple (597) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Deletes itself 1 IoCs
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Executes dropped EXE 1 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
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Drops file in System32 directory 4 IoCs
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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
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Enumerates system info in registry 2 TTPs 3 IoCs
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Modifies Control Panel 2 IoCs
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Modifies registry class 5 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: RenamesItself 26 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of SetWindowsHookEx 13 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Document.doc.scr"C:\Users\Admin\AppData\Local\Temp\Document.doc.scr" /S1⤵
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
- Drops file in System32 directory
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C:\ProgramData\6B3E.tmp"C:\ProgramData\6B3E.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\6B3E.tmp >> NUL3⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{68F821A3-6726-4892-A267-9686D67564FA}.xps" 1335853663550000002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\$Recycle.Bin\S-1-5-21-355664440-2199602304-1223909400-1000\PPPPPPPPPPPFilesize
129B
MD56018183f2f50262ab9d5ee5c2db1b013
SHA15fb7bab3d3442fa22aede063c010c60dc306e301
SHA256b0c16960770329046df98d931fea2d25ded1b78dd76383d130ef19202a87e79e
SHA512e104c2acc532d1727072f5b1a025dbab4909359c3a13c9400662a791a2fcb77fe0144b32262c599372926eae6d996c5ec7e880995a728721d71158758f1dc775
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C:\ProgramData\6B3E.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDFilesize
194KB
MD5f08e1c5ea246088871a66657c06da1ff
SHA11229c8fcb66154017a67cb5927745b83be6dc36d
SHA256f04140f2bd1aa256c437ada2e6f098bcb15d39aaf929dbd21433c9e8cd7fef72
SHA512d652ecc35dce5b752d9c76f7b17a6ddfecf2da16adb12ee0e08b37d95ad33b03c20edc94a3579aeaead1f1cf261b3504629fc88496e9301d5aa5d3e019c77ee0
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C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2Filesize
4KB
MD557ce149f64f5bce77d779d91f228a705
SHA1682e82d59c96cbed0804e3f4d1d6febc7b96c1c7
SHA256c4d736bbd8448daf8c130312be032e0fc98557229c565f81b9e9414b40b3593d
SHA512c788f003505a09d9d2c5202f5e319f95b868159ee0f79b4f921ded87764f57edbdefaaa1a071c3d22d26258821a1cf3770746a9bb748ccb469fe4a5be2cdc9c2
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C:\kZd6jLIwz.README.txtFilesize
449B
MD5c2f46db865b0ba6ef8f9385cf458a56e
SHA10b2f94fcf38ef15f59bb86a3296b7da514b4ac4e
SHA256c25759e6083dd4bf592a6da2063c45def5adc9a6ef2ed15820128a0d838f70fe
SHA5129927b209ca26e3243fac9f003c6af7663ba84405346fbdb66c6f401387cd20ea3f99d63d0858ebdc76f2e6bc722d41e2a1f599bc6f7d97b0687dba95dea31b39
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F:\$RECYCLE.BIN\S-1-5-21-355664440-2199602304-1223909400-1000\DDDDDDDDDDDFilesize
129B
MD580cd6d32f5f99b2e330d52b3eeb29092
SHA167b6fe7f2bf980016bcb987a997e53a6fe6650b8
SHA256060272e3727732ece1a7c4f207e0cf67e759e5056054edfee516869f3803b811
SHA51268460718df59eac8b68efb77d658ea0f2093107869910518fe816a8fa783e7bf39463d422bb27c25050d4aa4ff3dc632d6cdf101f6d5b9c2d928fa349d36eaec
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memory/116-2804-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2806-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2797-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2841-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2768-0x00007FFD3FD50000-0x00007FFD3FD60000-memory.dmpFilesize
64KB
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memory/116-2799-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2798-0x00007FFD3FD50000-0x00007FFD3FD60000-memory.dmpFilesize
64KB
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memory/116-2800-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2802-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2801-0x00007FFD3FD50000-0x00007FFD3FD60000-memory.dmpFilesize
64KB
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memory/116-2840-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2803-0x00007FFD3FD50000-0x00007FFD3FD60000-memory.dmpFilesize
64KB
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memory/116-2805-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2767-0x00007FFD3FD50000-0x00007FFD3FD60000-memory.dmpFilesize
64KB
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memory/116-2807-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2808-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2809-0x00007FFD3DBF0000-0x00007FFD3DC00000-memory.dmpFilesize
64KB
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memory/116-2810-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2811-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2812-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2813-0x00007FFD3DBF0000-0x00007FFD3DC00000-memory.dmpFilesize
64KB
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memory/116-2814-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2815-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/116-2816-0x00007FFD7FCD0000-0x00007FFD7FEC5000-memory.dmpFilesize
2.0MB
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memory/940-1-0x00000000008E0000-0x00000000008F0000-memory.dmpFilesize
64KB
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memory/940-0-0x00000000008E0000-0x00000000008F0000-memory.dmpFilesize
64KB
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memory/940-2-0x00000000008E0000-0x00000000008F0000-memory.dmpFilesize
64KB