Analysis
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max time kernel
139s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
27-04-2024 01:30
General
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Target
Document.doc.scr
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Size
194KB
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MD5
407ea767aa26ae13f9ff20d0999c8dda
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SHA1
07e615132ef78e827047ffc4cc6c9d44f5a976fd
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SHA256
f2198deecddd5ae56620b594b6b20bf8a20f9c983d4c60144bc6007a53087ce4
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SHA512
6c14d07b497af375f2f4db4da321ed7e5fb60a6f26281bcdbfc513eb1033d98442ff83ee58849a721bd7e14a0b7094b98397923c35bd4b6ae91c179784de6b02
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SSDEEP
3072:L6glyuxE4GsUPnliByocWepVeKna4iJ0Cv+LmaGqsqRxB:L6gDBGpvEByocWePk4iJ0C2LYcx
Malware Config
Signatures
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Renames multiple (632) 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\E54B.tmp"C:\ProgramData\E54B.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\E54B.tmp >> NUL3⤵
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3692 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:81⤵
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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\{56795851-77B9-4DCA-8558-3DA0B1FEC309}.xps" 1335865508113600002⤵
- 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-1-5-21-3808065738-1666277613-1125846146-1000\QQQQQQQQQQQFilesize
129B
MD5fc1ae6c9658a6b226f4d4ae19a913f8c
SHA1b6c8d8bac95ad0513bf6061f6619122774016230
SHA2568dae1fe4730ab200635bd394f2db8abb6f5fb9a4e6b6b1f16df1b4dadeb6dae4
SHA5123b7ff526918005bb79168b8eac4ca7790ccebd9371ca77980653fafaf23467bbda2a1ca9a676dcfd968c41e5d2737b40c07628388646644eea008c27dfc30995
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C:\ProgramData\E54B.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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C:\Users\Admin\AppData\Local\Temp\CCCCCCCCCCCCCCCCFilesize
194KB
MD5ad25d0a16e6aeb1a0c1dcacda3d0383d
SHA157a384918c30460985f29ad97e7455c93b4ae19a
SHA2564463655f658c98494d805a92eb290821cf74f8091589980a0d9cba7d5f50e01b
SHA5125768570511030af056af1d2ac920bb92269b8d3edde4185d0ddcef36b6fb6b1fce5563512de19c8c2c4410cedcf6c051cea5f5751a44139cf9f1f9a7c6c6e017
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C:\Users\Admin\AppData\Local\Temp\{A848E936-46E2-4A78-9F25-C431826A27A3}Filesize
4KB
MD5cdb1b4413d4713ccbf1bdcad1404cdab
SHA13da5d310818f73fdfb2db4c91b4c27f7717ae8b0
SHA2568ac954ff2c449a0231c887af3c51344661336e9e5501a2b1f976a1a4cf2d9bad
SHA51227da97904f8f0d6d9972260f4fc144507a6e62d2a4c511d70412fc57ada82bf38f0af2b4562894fbf72cd425fa2e6504b912d609f24dfb31c286db4a5a97ee2f
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C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2Filesize
4KB
MD508e492483920e933012e62a37a752b63
SHA14ebfb88648de3af4c360355b9f5fdfff9736f1e6
SHA256ee039b03c90d1bfbf32e3d26816c58c53c39ebf5adf19b0dbbd9403d56ff337f
SHA512d63193026d0bae6a611d835512ab148479f33b57773a58489a4ce234c7595873a4a799d882c94036c7981dc78fdd32844e1593f012d5283256309d0ac8f74620
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C:\jC7CNxlVt.README.txtFilesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\DDDDDDDDDDDFilesize
129B
MD5c6916d469e83dc33d6bb83b8b35b3905
SHA1708d2f73c76e33677515bdedd411ec87f19c4f2f
SHA256392e235c21da74cc672f8b2f6d4cfd9b02b7be03b5713cc79fd98aa156489c80
SHA5124b32d26212aca8d26a21e4ef94e5d8532f4b17ae5c655903716777ea7fc69f02d68eec1e7868ec0d5961a269695fb4ebbbf76fd2785141966190b659c4207465
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memory/3968-2-0x0000000001520000-0x0000000001530000-memory.dmpFilesize
64KB
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memory/3968-2812-0x0000000001520000-0x0000000001530000-memory.dmpFilesize
64KB
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memory/3968-2813-0x0000000001520000-0x0000000001530000-memory.dmpFilesize
64KB
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memory/3968-2811-0x0000000001520000-0x0000000001530000-memory.dmpFilesize
64KB
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memory/3968-1-0x0000000001520000-0x0000000001530000-memory.dmpFilesize
64KB
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memory/3968-0-0x0000000001520000-0x0000000001530000-memory.dmpFilesize
64KB
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memory/4728-2825-0x00007FFC02370000-0x00007FFC02380000-memory.dmpFilesize
64KB
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memory/4728-2829-0x00007FFC02370000-0x00007FFC02380000-memory.dmpFilesize
64KB
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memory/4728-2828-0x00007FFC02370000-0x00007FFC02380000-memory.dmpFilesize
64KB
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memory/4728-2862-0x00007FFC00310000-0x00007FFC00320000-memory.dmpFilesize
64KB
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memory/4728-2863-0x00007FFC00310000-0x00007FFC00320000-memory.dmpFilesize
64KB
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memory/4728-2827-0x00007FFC02370000-0x00007FFC02380000-memory.dmpFilesize
64KB
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memory/4728-2826-0x00007FFC02370000-0x00007FFC02380000-memory.dmpFilesize
64KB