Analysis
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max time kernel
147s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
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submitted
27-08-2024 11:50
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 (611) 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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Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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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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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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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
- System Location Discovery: System Language Discovery
- 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\CDB1.tmp"C:\ProgramData\CDB1.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- 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\CDB1.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
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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\{E35EFC3F-7771-41D8-BBBF-EB1AB072C2B2}.xps" 1336923306065000002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD5e1ccb70753a471e8c09467ae415b485e
SHA1d8f4ab035553834d0c8c50420c9620537c9ff7c2
SHA256dea644984fa0627d987450de48f09b2d4f530a264c1f0574fdb296fd7577ceb6
SHA5125fe81065a5b69c8a93c5325fd86d3871218778237f7dae941ec09aa6203d52f0575e058b76927625c5d8c65a3e3e7f2b0ac63356dfcb78d72261b708486ed64f
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
194KB
MD502a01518c9b095a67f51a8529dd28e82
SHA10140878c83870a7782f97532f5a6d4cd6962add6
SHA25678dfe4ee6e3d6c413cb6ffed4a4168bf99a6204131282c27d0317f5f2fe5f557
SHA5120a50e67cccb94804538a7f86b838a5c0e623d4e293fa2861990fcae0a7fabc2d7e69e9eee61f41f2d5dd96e1443fed3bb50028828bd0643be3c837eb9e8184a2
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Filesize
4KB
MD5166e6acd682c4d4ea2c32acf3237fa8d
SHA17d85cb6111bd533a097a36975b7de917cc4b982d
SHA256326aa3a54372835ea0e1a8b2a87413d0bbffb028e09fb18f0cee37b60a94c658
SHA5129f51a5bdf19a2404d40525e2ae422afa3ee6b326ab15bd58f47ac4fe8b7fb3601ef00b7dd4068c5d6565ae388a238237c86f08f53aaeb9cf49fe38c6207e8f9e
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Filesize
4KB
MD50a86501343bdb767e8c9edebe6211ad4
SHA1009f988af36e0498aabb24ae3be4de083b826278
SHA256614af0c6ad42b10d8bbe98aa744c9f3fcd3b7ee4eda0a43903d5a213309015ef
SHA512936649a7bfb4597ca2825cfeeceb3bded514abde702b4d52788cc1ccb65e77cb42f8f026b86dca3adfa6d5fc8fbd8030aa38a2bddc27d73f6733845650ba1586
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Filesize
449B
MD5c2f46db865b0ba6ef8f9385cf458a56e
SHA10b2f94fcf38ef15f59bb86a3296b7da514b4ac4e
SHA256c25759e6083dd4bf592a6da2063c45def5adc9a6ef2ed15820128a0d838f70fe
SHA5129927b209ca26e3243fac9f003c6af7663ba84405346fbdb66c6f401387cd20ea3f99d63d0858ebdc76f2e6bc722d41e2a1f599bc6f7d97b0687dba95dea31b39
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Filesize
129B
MD588fd3b8b49248039d7faa0aaf7e165d0
SHA1bb38061e430c794b1a1f5608261d3283590a0768
SHA256e36f20e081520d0c3dcce33b853e88cadf7f11e4649772194908c40c50d01165
SHA5124bb7b35802f66a7f94c414da280a4936bfc9c16f5ff91a7b0a6f23e77def68ad8de05f72c8f067d6ad5bd199688df6a6cc87cad518d35d376665b03e08c57acd
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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
64KB
-
Filesize
64KB
-
Filesize
64KB
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Filesize
64KB