Analysis
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max time kernel
157s -
max time network
162s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
26-04-2024 07:17
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 (633) 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 2 IoCs
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Suspicious use of WriteProcessMemory 8 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\736.tmp"C:\ProgramData\736.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
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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=3948 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --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\{CB1007EF-5743-44BD-895F-7F503A6692A8}.xps" 1335858958453500002⤵
- 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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Filesize
129B
MD5fa1cfbf9521253022a979a7fd4de403e
SHA13db20dfaf1d5346bc6843b718cc0c5a849d6cfb3
SHA256501cd8ff28c947d8fc726d09ce589181579946a0e6f88013ffe13d9219d90310
SHA512b81bb6b358f3ee0bb883a4d006ca3075a7571da80ab5ccfe7703707cb39f6d6731b7283925fbaee6370fb4979af333dae20ce3ac207b2efd6ab09db15aa15d14
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
194KB
MD5dfedc14c3ef4739eb21d1c2d1f089dde
SHA1a375cde3dd98bc527d5300b6d6cd9302aef1de13
SHA256dfe585d22c1a4ce0b1fd7ffd094a75634bbb0a7cdfd7e76bdebb92f7e7bbda02
SHA5127daf70f72003e9032b9f59708571bb7a3881a41f7ef96a28a5d694c155a6d75c747068e392139c829fbfab5eb59d9b62271e4c61009c003fbeee7303fa9390ad
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Filesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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Filesize
129B
MD5d1e1bcfbb10178ef36774d91a9dfbc20
SHA11efcf056a44c5e9f930051232377476feb5e649c
SHA2564380da31fec2360f52c680da2e8a2f8e23b2117b6257681125f45b4c913a87f5
SHA5128b11c3cb02caca693965d00250142f61c3c5223ff5f635fc3defa3f3012dbb1a6fd6ab32cb12f4e7ac1ab7cc6cb1326782551b80b6deb2649378623a6ec3e770
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
2.0MB
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Filesize
64KB
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Filesize
64KB
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Filesize
2.0MB
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Filesize
64KB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
64KB
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Filesize
2.0MB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
4KB
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Filesize
64KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
64KB