Analysis
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max time kernel
146s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
25-04-2024 14:27
General
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Target
Document.doc.scr
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Size
194KB
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MD5
b7b4c97132d03eead1fa9a9352dee6c2
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SHA1
c9eb1bdc528076fa9c91668addf0723294ac1575
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SHA256
1ecea8b0bc92378bf2bdd1c14ae1628c573569419b91cc34504d2c3f8bb9f8b2
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SHA512
cb0023bc6783a94a27d2d4a67c214e8657fd334d1a94a7dba51277363dee2a67e7ecc5fc0788cead1c4e0e2dc7d9aa758203f89dce162184869d20a44d171903
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SSDEEP
3072:v6glyuxE4GsUPnliByocWepXKD0/9Wy1Og/ZK99r:v6gDBGpvEByocWehKD0/EWfg3
Malware Config
Signatures
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Renames multiple (620) 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\6BBB.tmp"C:\ProgramData\6BBB.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\6BBB.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\{D6E4C9C5-184D-44EE-8AFB-5F73B44144EB}.xps" 1335852883842700002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\$Recycle.Bin\S-1-5-21-2177723727-746291240-1644359950-1000\desktop.iniFilesize
129B
MD5c72cccf899e5e20c4e1e13bde4ea0291
SHA19d8001d20e3fcd6f73cb7d4ce63ba6826927cd98
SHA256f979fe8f324a0056ebc85a723151aacef4184a5bf7228f1006ae8759c4f6ce55
SHA512ab989a5b4c131a49791a8aaaf77dd8a820485e1df8e340eaa5ad53a436a58f8a6ba10dc63796380d47d2846a772db6d8ed95acc21a9865732b5d7a46d2ca5db3
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C:\ProgramData\6BBB.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDFilesize
194KB
MD5b84df273b12cdb615f8eeb9521a21b05
SHA10304a4129541f012591a0907921ad106822f9c2f
SHA256b3920eccf28f33ce4dc71a77897f42b1be291d497997007ca2ba1f2cab863c51
SHA5123107324d7897373829b89cf0fd01b40259b856b07d23ecfd5ecdf7693c2b226372dd51bd84b6b698418a6bfb943a63f7aac7a8bf7e452095123d8304e4f919f1
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C:\Users\Admin\AppData\Local\Temp\{ADD80A25-511E-4F4E-91BB-7353D4AA7BAA}Filesize
4KB
MD5c2c38bf8afc8377959aa255d09e91446
SHA111fdb8776b2c594eea3c170e7e79d79891245b38
SHA256eefd3da4600a8c7542eed2f4b9c4d65d2de14d4f582a518593a3f7c813e81ed2
SHA5123d4653626a9a882eac54e89084870f610f44bdabc76413166fc0fbc3dc73abe5e88cbb306dbbce73367a1f3331ccab02ee45fd0077db6c71a3c1ed4b73ebf3b6
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C:\te8ZzuVLn.README.txtFilesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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F:\$RECYCLE.BIN\S-1-5-21-2177723727-746291240-1644359950-1000\DDDDDDDDDDDFilesize
129B
MD5e9072ca2df8e07a7ea862719913cbf1f
SHA102643c168e7d20f44e173a3b41b0e2c0363dcd09
SHA256aa1a59f98d55315e169bd8b0fc9dfa16ff8f95e1843a9503b0187a0b1f5371c0
SHA512d24a1d03161c9dc383a27b7a72cbf943e40aedce716db75ec4b651c1eb12ad665c8ed778acefe9f1a2bfc192145eb2bdf3d6e0027c3b11c1f2f4e1a86c3f6aee
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memory/3172-1-0x0000000002760000-0x0000000002770000-memory.dmpFilesize
64KB
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memory/3172-2-0x0000000002760000-0x0000000002770000-memory.dmpFilesize
64KB
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memory/3172-0-0x0000000002760000-0x0000000002770000-memory.dmpFilesize
64KB
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memory/3716-2806-0x00007FFA5F5F0000-0x00007FFA5F600000-memory.dmpFilesize
64KB
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memory/3716-2817-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2807-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2808-0x00007FFA5F5F0000-0x00007FFA5F600000-memory.dmpFilesize
64KB
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memory/3716-2809-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2810-0x00007FFA5F5F0000-0x00007FFA5F600000-memory.dmpFilesize
64KB
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memory/3716-2811-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2776-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2812-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2813-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2815-0x00007FFA5D4E0000-0x00007FFA5D4F0000-memory.dmpFilesize
64KB
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memory/3716-2814-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2816-0x00007FFA5D4E0000-0x00007FFA5D4F0000-memory.dmpFilesize
64KB
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memory/3716-2783-0x00007FFA5F5F0000-0x00007FFA5F600000-memory.dmpFilesize
64KB
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memory/3716-2818-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2819-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2820-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2821-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2822-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2823-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2824-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2825-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2775-0x00007FFA5F5F0000-0x00007FFA5F600000-memory.dmpFilesize
64KB
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memory/3716-2849-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB
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memory/3716-2850-0x00007FFA9F570000-0x00007FFA9F765000-memory.dmpFilesize
2.0MB