Analysis
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max time kernel
139s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
27-04-2024 01:20
General
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Target
41e187191625d749b89a11bc04fc0b2a3b9bd638035d05b39365c47ab36d1898.exe
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Size
194KB
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MD5
6fd558cf3add096970e15d1e62ca1957
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SHA1
78e95fabcfe8ef7bb6419f8456deccc3d5fa4c23
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SHA256
41e187191625d749b89a11bc04fc0b2a3b9bd638035d05b39365c47ab36d1898
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SHA512
fac7efe9b76f9b6a917f8751f5be64ad8e067e5404fe05f3e9d7781ea3661a06c0baaac676a6023eb4a0b7f01bc2bb2d64d572f85aec8ad8de35cc7f106e1fdc
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SSDEEP
3072:n6glyuxE4GsUPnliByocWepMhJL4BFkTGX:n6gDBGpvEByocWeyhJL4UK
Malware Config
Signatures
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Renames multiple (658) 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\41e187191625d749b89a11bc04fc0b2a3b9bd638035d05b39365c47ab36d1898.exe"C:\Users\Admin\AppData\Local\Temp\41e187191625d749b89a11bc04fc0b2a3b9bd638035d05b39365c47ab36d1898.exe"1⤵
- 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\D34A.tmp"C:\ProgramData\D34A.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\D34A.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\{B5194DA2-90F8-4129-99A7-D7D10EACD5A8}.xps" 1335865448802900002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
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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=3980 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:81⤵
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\desktop.iniFilesize
129B
MD57190d791edf7643ae57acded58603dc1
SHA1613c16c56346d008131081358c7f6a7159d45b54
SHA25665badf023e8c08fd3c1eba75608908233b14eff5561506bfbe392b63dac61fb0
SHA5120b81c406c63c69bb0c73db934392b6fa220490fcb6cdade818342cb901c7bb7418017d21f330ce968d4f8b67bb341215579cca32062810093a87e608127bd8e4
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C:\AAtvmKv4L.README.txtFilesize
434B
MD5b4709a56b9d7f431da172316cda720be
SHA1d2132f7129a7003ec4c0392f0f08cd24ea353da6
SHA256192d1e6078570865531e8a4c9840a483c4a2ac35fe468107284991f6da813191
SHA512e390d51e95db5e56c666a2895dc87dab41d97e7ce3c0df1f2466abf14a651167232521ab5f52746d16bab0ef14e6c0ee9dcfe29894604d695b0d064909378227
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C:\ProgramData\D34A.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDFilesize
194KB
MD5a6db83948dfd92a187ff352b303cf795
SHA1f6f593e56108cf522dc0625db2c940a61cf9808c
SHA25675731ced6246247ff303f6bc3229f261b924b5c17179b4ba70a1f144487b78b9
SHA5125a06e15823eccdccd872aea340263ccb58c7bf786cd8439c574d7cd807dc907bbab34df3cad2093b9fa04f68ab73eeffeeb04058fcf5ddda16353e942fe16b76
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C:\Users\Admin\AppData\Local\Temp\{6FD00EF3-10D8-4CDB-A6DE-58979D491C54}Filesize
4KB
MD554255837613556c9708a2a456ae96a98
SHA14a15712e926e58b03d2ee4f9639da6a1dbb8731c
SHA25676d01b373aefd7fc27c2d8d5dee43d90894a36d02ea2b9cd8f7b090fc9507c7e
SHA512b329879d6e0bc2a28a9b4f44b3e59a2d797f94050f3caf2bd12db6961b3404e383b74a45d4ef4da89c9e91637972960a96450733d4d14f551ea9f6495e97a9ee
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C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2Filesize
4KB
MD5cdeeed159e569759fac55f6ede2669fc
SHA1d82faa57097874a154e448a1a4e573f3c9960463
SHA25662c3312e3403bb4f3c768cdc8239e2488ad8efa125350b50b47aa2f83b2eaa58
SHA51222d88b952b74abbef5d24c277e634bf0a02c974fcda50483365cb7c1b5820461da0a2745c2320d39dedd5276733b4d3b4954587905b998d4d34839f2a29f942a
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F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\DDDDDDDDDDDFilesize
129B
MD598f48b4a20cb99a44b9c170e50f3757d
SHA1c1c84923a61affd2ba13e13358eb49dcd7cdc18c
SHA256c10e102a46ec728611745eac55070b5c12b04b4ba9cdd53c3fd038d8981069d2
SHA5127137c7287b17beb65da3675b63ac5f62db0de23bc1dd689b9d5519faa8b5ed2426dcd2f1c4d01907316a2eabc2522e5ad9bbf41e840acdd5c5cf4f1a8c709456
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memory/3264-1-0x0000000001150000-0x0000000001160000-memory.dmpFilesize
64KB
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memory/3264-0-0x0000000001150000-0x0000000001160000-memory.dmpFilesize
64KB
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memory/3264-2837-0x0000000001150000-0x0000000001160000-memory.dmpFilesize
64KB
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memory/3264-2839-0x0000000001150000-0x0000000001160000-memory.dmpFilesize
64KB
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memory/3264-2838-0x0000000001150000-0x0000000001160000-memory.dmpFilesize
64KB
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memory/3264-2-0x0000000001150000-0x0000000001160000-memory.dmpFilesize
64KB
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memory/4864-2852-0x00007FF873470000-0x00007FF873480000-memory.dmpFilesize
64KB
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memory/4864-2851-0x00007FF873470000-0x00007FF873480000-memory.dmpFilesize
64KB
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memory/4864-2855-0x00007FF873470000-0x00007FF873480000-memory.dmpFilesize
64KB
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memory/4864-2888-0x00007FF870F60000-0x00007FF870F70000-memory.dmpFilesize
64KB
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memory/4864-2889-0x00007FF870F60000-0x00007FF870F70000-memory.dmpFilesize
64KB
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memory/4864-2853-0x00007FF873470000-0x00007FF873480000-memory.dmpFilesize
64KB
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memory/4864-2854-0x00007FF873470000-0x00007FF873480000-memory.dmpFilesize
64KB