Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
25-04-2024 15:35
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 (616) 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: AddClipboardFormatListener 2 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 14 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\6850.tmp"C:\ProgramData\6850.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\6850.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\{3EB60AF5-B7F9-477A-9029-7E99B5713BDA}.xps" 1335853299733900002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- 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-1-5-21-4084619521-2220719027-1909462854-1000\CCCCCCCCCCCFilesize
129B
MD52726f78eb4531e41a196ec9a38683a72
SHA1e65746074460ad001370146a1bb27d5c7f8ea1a1
SHA2568472758c931ae10eadec8c36a40380c664c639d108e568e1d95dad91e46f0763
SHA51247d2c2071026de13cd256ad4cd18327cbc88f24183911ee309de1433622e762a85ca6350e6e8a44a3bae43247a03363bf29dcb6d3885eb9f53875bec5a265976
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C:\ProgramData\6850.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDFilesize
194KB
MD5892bede212bbaae35e828c324938fa54
SHA1cc11ee1e84bdb92104cb2bd1d222596136716e9a
SHA2564b7e08e799ef93af51e4a8343dd90ce072507f7547cfcd500b95df826a0a0f30
SHA5122dba7d9c488e7e704a2457aa14a9a5ee900bd7fe1f9eabcbe15a9769213302f930fda7690b1af757d50a86b8bfd9a84761074ed04737ac1eced1214bd184cee5
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C:\Users\Admin\AppData\Local\Temp\{4B8A25E5-40BA-4C9E-94A2-8CD6A3474245}Filesize
4KB
MD5b9c8e5a9addea756d77f499a9be9c24d
SHA15207a1d0eefef29eec541a59e222f2cc31279ac4
SHA25628a31b6e9a40e5909bd6d555c497d06b5e3fe9cdc10ffcf3915d739afdca22d5
SHA512ac67497b617c87d6ad9035272e226ec9b6ab02af14dcd52e13c1308cbb73c19a11b292918cb344559ea1f556325be9e0c716362694b1152f70d4dbe51b9a83f7
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C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2Filesize
4KB
MD5621e9a5463337e81c3530846ba589f28
SHA12ddb9edd981388776bef9adefbf3ca8a6b9a9c4a
SHA25699093feb5a5741dd07405a9e41002930923abef6cf70ce1f118fb51da8c8ad5f
SHA5122d776dc9d03e9d487ccad66cc268caa73521d17b7d16bf8404ff30d513cc01d274f8b0adc5a39b59eb50008af9f778da74666f965d440534b13a57626a2e0505
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C:\kZd6jLIwz.README.txtFilesize
449B
MD5c2f46db865b0ba6ef8f9385cf458a56e
SHA10b2f94fcf38ef15f59bb86a3296b7da514b4ac4e
SHA256c25759e6083dd4bf592a6da2063c45def5adc9a6ef2ed15820128a0d838f70fe
SHA5129927b209ca26e3243fac9f003c6af7663ba84405346fbdb66c6f401387cd20ea3f99d63d0858ebdc76f2e6bc722d41e2a1f599bc6f7d97b0687dba95dea31b39
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F:\$RECYCLE.BIN\S-1-5-21-4084619521-2220719027-1909462854-1000\DDDDDDDDDDDFilesize
129B
MD5b2925b63ba72ba6b20cacd5b18e27f76
SHA1cce990dc15864ca353e0daf6dfe39a25cb27ad8d
SHA2565b65c999bb378f3938831b41d969ec78561668de87942e583730c9d23e901b83
SHA5121276cfa84d54124fcde2069e55f5467db85d02cffe99c14d76e1cee5505be4748ff58ac0273dc8b46947e661cf592f3824f934a067952c4eb61cae951eee45d1
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memory/1644-2811-0x00007FF92E070000-0x00007FF92E080000-memory.dmpFilesize
64KB
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memory/1644-2819-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2807-0x00007FF92E070000-0x00007FF92E080000-memory.dmpFilesize
64KB
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memory/1644-2808-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2810-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2809-0x00007FF92E070000-0x00007FF92E080000-memory.dmpFilesize
64KB
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memory/1644-2871-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2872-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2869-0x00007FF92E070000-0x00007FF92E080000-memory.dmpFilesize
64KB
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memory/1644-2816-0x00007FF92E070000-0x00007FF92E080000-memory.dmpFilesize
64KB
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memory/1644-2870-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2818-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2868-0x00007FF92E070000-0x00007FF92E080000-memory.dmpFilesize
64KB
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memory/1644-2867-0x00007FF92E070000-0x00007FF92E080000-memory.dmpFilesize
64KB
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memory/1644-2820-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2822-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2821-0x00007FF92B790000-0x00007FF92B7A0000-memory.dmpFilesize
64KB
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memory/1644-2806-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2823-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2824-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2826-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2825-0x00007FF92B790000-0x00007FF92B7A0000-memory.dmpFilesize
64KB
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memory/1644-2827-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2828-0x00007FF96DFF0000-0x00007FF96E1E5000-memory.dmpFilesize
2.0MB
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memory/1644-2777-0x00007FF92E070000-0x00007FF92E080000-memory.dmpFilesize
64KB
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memory/1644-2866-0x00007FF92E070000-0x00007FF92E080000-memory.dmpFilesize
64KB
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memory/1936-1-0x0000000002CD0000-0x0000000002CE0000-memory.dmpFilesize
64KB
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memory/1936-0-0x0000000002CD0000-0x0000000002CE0000-memory.dmpFilesize
64KB
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memory/2248-2812-0x000000007FE40000-0x000000007FE41000-memory.dmpFilesize
4KB
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memory/2248-2817-0x000000007FDC0000-0x000000007FDC1000-memory.dmpFilesize
4KB
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memory/2248-2815-0x000000007FE20000-0x000000007FE21000-memory.dmpFilesize
4KB
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memory/2248-2813-0x00000000023B0000-0x00000000023C0000-memory.dmpFilesize
64KB
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memory/2248-2814-0x00000000023B0000-0x00000000023C0000-memory.dmpFilesize
64KB