Analysis
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max time kernel
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
25-04-2024 03:07
Behavioral task
behavioral1
Sample
Document.doc.scr
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
Document.doc.scr
Resource
win10v2004-20240226-en
General
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Target
Document.doc.scr
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Size
194KB
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MD5
50e5dec57451005668704281688ca55d
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SHA1
67dd4ac7eb8c193b39149b34d3a0d5bc21c3f200
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SHA256
062683257386c9e41a1cd1493f029d817445c37f7c65386d54122fa466419ce1
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SHA512
29ca4a44795c71d3e2b4e3417355ebb93765157d464d6d5a3fe6774056d934d57081c72001fb29e47982da11e5a5ccfdbcc958d05a11fb49bd8bf84e6d0c61ad
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SSDEEP
3072:66glyuxE4GsUPnliByocWepRGbVZqid91h2ys+tU:66gDBGpvEByocWeubV4inP9B
Malware Config
Signatures
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Renames multiple (338) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes itself 1 IoCs
Processes:
2BD1.tmppid process 2184 2BD1.tmp -
Executes dropped EXE 1 IoCs
Processes:
2BD1.tmppid process 2184 2BD1.tmp -
Loads dropped DLL 1 IoCs
Processes:
Document.doc.scrpid process 2856 Document.doc.scr -
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
Processes:
Document.doc.scrdescription ioc process File opened for modification C:\$Recycle.Bin\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini Document.doc.scr File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini Document.doc.scr -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
Document.doc.scrdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\Qs2QSInbk.bmp" Document.doc.scr Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\Qs2QSInbk.bmp" Document.doc.scr -
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
Processes:
Document.doc.scr2BD1.tmppid process 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2184 2BD1.tmp -
Modifies Control Panel 2 IoCs
Processes:
Document.doc.scrdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Control Panel\Desktop Document.doc.scr Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Control Panel\Desktop\WallpaperStyle = "10" Document.doc.scr -
Modifies registry class 5 IoCs
Processes:
Document.doc.scrdescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.Qs2QSInbk Document.doc.scr Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.Qs2QSInbk\ = "Qs2QSInbk" Document.doc.scr Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Qs2QSInbk\DefaultIcon Document.doc.scr Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Qs2QSInbk Document.doc.scr Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Qs2QSInbk\DefaultIcon\ = "C:\\ProgramData\\Qs2QSInbk.ico" Document.doc.scr -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
Document.doc.scrpid process 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr 2856 Document.doc.scr -
Suspicious behavior: RenamesItself 26 IoCs
Processes:
2BD1.tmppid process 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp 2184 2BD1.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
Document.doc.scrdescription pid process Token: SeAssignPrimaryTokenPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeDebugPrivilege 2856 Document.doc.scr Token: 36 2856 Document.doc.scr Token: SeImpersonatePrivilege 2856 Document.doc.scr Token: SeIncBasePriorityPrivilege 2856 Document.doc.scr Token: SeIncreaseQuotaPrivilege 2856 Document.doc.scr Token: 33 2856 Document.doc.scr Token: SeManageVolumePrivilege 2856 Document.doc.scr Token: SeProfSingleProcessPrivilege 2856 Document.doc.scr Token: SeRestorePrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSystemProfilePrivilege 2856 Document.doc.scr Token: SeTakeOwnershipPrivilege 2856 Document.doc.scr Token: SeShutdownPrivilege 2856 Document.doc.scr Token: SeDebugPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeBackupPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr Token: SeSecurityPrivilege 2856 Document.doc.scr -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
Document.doc.scr2BD1.tmpdescription pid process target process PID 2856 wrote to memory of 2184 2856 Document.doc.scr 2BD1.tmp PID 2856 wrote to memory of 2184 2856 Document.doc.scr 2BD1.tmp PID 2856 wrote to memory of 2184 2856 Document.doc.scr 2BD1.tmp PID 2856 wrote to memory of 2184 2856 Document.doc.scr 2BD1.tmp PID 2856 wrote to memory of 2184 2856 Document.doc.scr 2BD1.tmp PID 2184 wrote to memory of 2024 2184 2BD1.tmp cmd.exe PID 2184 wrote to memory of 2024 2184 2BD1.tmp cmd.exe PID 2184 wrote to memory of 2024 2184 2BD1.tmp cmd.exe PID 2184 wrote to memory of 2024 2184 2BD1.tmp cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Document.doc.scr"C:\Users\Admin\AppData\Local\Temp\Document.doc.scr" /S1⤵
- Loads dropped DLL
- 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
PID:2856 -
C:\ProgramData\2BD1.tmp"C:\ProgramData\2BD1.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2184 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\2BD1.tmp >> NUL3⤵PID:2024
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:1264
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
129B
MD56e0de7f42cfa4edfefa3fdb652a9eece
SHA1f71e6a744c412d0d7238e72546d2e34a4de126cd
SHA256781f2c780e2b1e32cf3314e9892b3700d4b465d007115d9e7e4b9acf4989f0a2
SHA512667c08d05db8e41547a89b36c5b2c23de796c1b9fbcae320080472a11911cf1c13aa9fa88d5e2e21d68d9feffc4ee6755d9899caaf0b376fb3fe989c5a691e53
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Filesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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Filesize
194KB
MD5faba25b7bb849097ff19a904e02be16a
SHA13cd16eede8178553cadf725e7393b49c109f66b0
SHA256d25da53955f29ce7ddd55db3a913d7ab30e1d272cad8d8397ec9b5e2c0213adb
SHA5125831b610f5e1dbd6efcbda315d163ee991d321a0e4cdea409c7d9fbf055a77ad579f6ee549d38c993f00a268b5abeb5805b78384a215aa784ad6913ed50d16cb
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Filesize
129B
MD52a4b5bc73327e15b9d64eca832beee5d
SHA1ded8814dbf9f60ef8d7844c2ac096faabacee101
SHA256a72066387ec8728e9a9f7a33ef104797050cfc7fc1d1ff3a1dbef82c5d26f1d1
SHA512a3ddcf37b44b688beca7f1023131778cdd2b7d707579ab0e18c51f35ecd86ab47f0c177509146173b5cfefaf4914389370882b02b6ffc490458cde9f8c93b2f4
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf