Resubmissions
30/04/2024, 19:54
240430-ymx4waeg8z1030/04/2024, 19:45
240430-yglhwseg2x1030/04/2024, 19:30
240430-x8a1ssee5v1030/04/2024, 15:30
240430-sxxcfaaa4110Analysis
- max time kernel
184s - max time network
207s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system - submitted
30/04/2024, 15:30
Behavioral task
behavioral1
Sample
lb.exe
Resource
win7-20240221-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
lb.exe
Resource
win10v2004-20240419-en
windows10-2004-x64
20 signatures
150 seconds
Behavioral task
behavioral3
Sample
lbb.exe
Resource
win7-20240215-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral4
Sample
lbb.exe
Resource
win10v2004-20240419-en
windows10-2004-x64
20 signatures
150 seconds
General
- Target lbb.exe
- Size 194KB
- Sample240430-sxxcfaaa41
- SHA256 a18a6bacc0d8b1dd4544cdf1e178a98a36b575b5be8b307c27c65455b1307616
- MD5 e990e7571cdb06c5d0f093176cecf414
- SHA1 409fc0816adbf05ac1586112044401ecb90c8022
- SHA512 9719fb45a0cd79ba8d51c3d052fe76dcb6d1b5b677a5398cc4fdbe6373d8763d2b0c3375929f41c5a0e46237b4a3f660b0b7f6a4f8a24ea47d52074da69baa64
- SSDEEP 3072:A6glyuxE4GsUPnliByocWepzdBaChENI/NBpke:A6gDBGpvEByocWelq+V
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Renames multiple (632) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Control Panel\International\Geo\Nation 68DD.tmp - Deletes itself 1 IoCs
pid Process 3488 68DD.tmp - Executes dropped EXE 1 IoCs
pid Process 3488 68DD.tmp - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Drops desktop.ini file(s) 2 IoCs
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-3411335054-1982420046-2118495756-1000\desktop.ini lbb.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3411335054-1982420046-2118495756-1000\desktop.ini lbb.exe - Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\system32\spool\PRINTERS\PPmr0u5b046sgw6yz_adrqxg90c.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\00002.SPL splwow64.exe File created C:\Windows\system32\spool\PRINTERS\PPrxjnrpjj2iqmfad8r_mniw10d.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PPib6nw6rbny41k8ttayiuo0pud.TMP printfilterpipelinesvc.exe - Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\MIuB4Jpci.bmp" lbb.exe Set value (str) \REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\MIuB4Jpci.bmp" lbb.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
pid Process 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 3488 68DD.tmp - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString ONENOTE.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 ONENOTE.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU ONENOTE.EXE - Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Control Panel\Desktop lbb.exe Set value (str) \REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Control Panel\Desktop\WallpaperStyle = "10" lbb.exe - Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\MIuB4Jpci\DefaultIcon\ = "C:\\ProgramData\\MIuB4Jpci.ico" lbb.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.MIuB4Jpci lbb.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.MIuB4Jpci\ = "MIuB4Jpci" lbb.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MIuB4Jpci\DefaultIcon lbb.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MIuB4Jpci lbb.exe - Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 3452 ONENOTE.EXE 3452 ONENOTE.EXE - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe 856 lbb.exe - Suspicious behavior: RenamesItself 26 IoCs
pid Process 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp 3488 68DD.tmp - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeDebugPrivilege 856 lbb.exe Token: 36 856 lbb.exe Token: SeImpersonatePrivilege 856 lbb.exe Token: SeIncBasePriorityPrivilege 856 lbb.exe Token: SeIncreaseQuotaPrivilege 856 lbb.exe Token: 33 856 lbb.exe Token: SeManageVolumePrivilege 856 lbb.exe Token: SeProfSingleProcessPrivilege 856 lbb.exe Token: SeRestorePrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSystemProfilePrivilege 856 lbb.exe Token: SeTakeOwnershipPrivilege 856 lbb.exe Token: SeShutdownPrivilege 856 lbb.exe Token: SeDebugPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeBackupPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe Token: SeSecurityPrivilege 856 lbb.exe - Suspicious use of SetWindowsHookEx 16 IoCs
pid Process 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE 3452 ONENOTE.EXE - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 856 wrote to memory of 3368 856 lbb.exe 92 PID 856 wrote to memory of 3368 856 lbb.exe 92 PID 4704 wrote to memory of 3452 4704 printfilterpipelinesvc.exe 97 PID 4704 wrote to memory of 3452 4704 printfilterpipelinesvc.exe 97 PID 856 wrote to memory of 3488 856 lbb.exe 98 PID 856 wrote to memory of 3488 856 lbb.exe 98 PID 856 wrote to memory of 3488 856 lbb.exe 98 PID 856 wrote to memory of 3488 856 lbb.exe 98 PID 3488 wrote to memory of 4752 3488 68DD.tmp 99 PID 3488 wrote to memory of 4752 3488 68DD.tmp 99 PID 3488 wrote to memory of 4752 3488 68DD.tmp 99
Processes
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C:\Users\Admin\AppData\Local\Temp\lbb.exe"C:\Users\Admin\AppData\Local\Temp\lbb.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
PID:856 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
- Drops file in System32 directory
PID:3368
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C:\ProgramData\68DD.tmp"C:\ProgramData\68DD.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3488 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\68DD.tmp >> NUL3⤵PID:4752
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:5112
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4704 -
C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{533017ED-EAF0-4B58-B843-29FBD7E8DC65}.xps" 1335896466686600002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3452
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\$Recycle.Bin\S-1-5-21-3411335054-1982420046-2118495756-1000\WWWWWWWWWWW
- Size 129B
- SHA256 607bb487b5b4ddf3b7d28c0879823269ff79678f07dc6afa564f02b3c7b14951
- MD5 2da0f8253141d7c6bdb0b368a2c0941a
- SHA1 1a3fe18f6a6d0391320cb895f576fe3e1db55548
- SHA512 8bc8e20c30ad5d28083127cc74bddca95d95dbc354524e09d3f4aa859ca86d616ddbedba5c26d179ae41859e86780efa57f30dab4cd9098e1a878651186066a6
- MD5 SHA1 SHA512
- Path C:\MIuB4Jpci.README.txt
- Size 434B
- SHA256 192d1e6078570865531e8a4c9840a483c4a2ac35fe468107284991f6da813191
- MD5 b4709a56b9d7f431da172316cda720be
- SHA1 d2132f7129a7003ec4c0392f0f08cd24ea353da6
- SHA512 e390d51e95db5e56c666a2895dc87dab41d97e7ce3c0df1f2466abf14a651167232521ab5f52746d16bab0ef14e6c0ee9dcfe29894604d695b0d064909378227
- MD5 SHA1 SHA512
- Path C:\ProgramData\68DD.tmp
- Size 14KB
- SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
- MD5 294e9f64cb1642dd89229fff0592856b
- SHA1 97b148c27f3da29ba7b18d6aee8a0db9102f47c9
- SHA512 b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
- SSDEEP 384:5cFP7VtpK4p+31Mzh79W5vM+ZyUgGq4BtMvAxXCRsi:A7Vf9p+qQ02y5HW6kX
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{533017ED-EAF0-4B58-B843-29FBD7E8DC65}.xps
- Size 13.0MB
- SHA256 8d8bbc755b691536bba6bb79a82b39d96f973931a5cc8097f6ad735ecec94154
- MD5 e2cb6787a35142e4e7733574d79a293b
- SHA1 f8d7a27ca299f5017e8a0f26fc1291516c6c71bb
- SHA512 563f144efb83910135c173315ed53cf58a459bdfcbe9537fc3fddbb15a73d0bd31af2f33edcd9a795be1151bec3937753745018bf94f8faf6686919195d9c4e1
- SSDEEP 393216:zFO5b2ja1jEz5lihzf1MgzfW31nOhelPQZlPVNnM7:q7BmlPQZlPVNns
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\DDDDDDD
- Size 194KB
- SHA256 30fe81c11e65e536d2be3e7f318b2c5c967e9b7dca9f59e3f5be7434cdf6dc25
- MD5 1cb18991cdbf1490029a63bbb21e0f71
- SHA1 77e8062609b8933bffa2224f4fb3fb35369f7580
- SHA512 7a4c8d0a52381034ba435b2169eaac026f5cb3ef6380f22a32c21bfedba8d9ddf12b93a29d59f54c6ad24cdccb446569accfc68dcec02ec3cdd24164bf6b4025
- SSDEEP 6144:D38y7mXxVET9KFIhY6J1338y7mXxVET9KFIhY6J1338y7mXxVET9KFIhY6J1K:D38PXzEJde6f38PXzEJde6f38PXzEJdK
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\{32ADA44E-85DC-4AC9-9BC4-52C3F654DD69}
- Size 4KB
- SHA256 acd60b69a3119a341cf4869faee41fb639419cb17295cadcf5901e4fed80a4a1
- MD5 33b26092dead2668db38469b421049f7
- SHA1 c17adca821fad74b45c56fec050c0b2c96f3dc46
- SHA512 b3874f139fc8207e2e744f24332856fde62761499c95f84e3cf1e4fcde79d230e1cfe1e9dd92c517c05ecde175dee556ffc3863cca2cecf0b46464316430c19b
- SSDEEP 6:Vz1DVYyfhcD1WXUn/cXe0ottllVoRujslll:Vz1DVYyfmJ2U/cXepttq/l
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\{C5B6D879-AE69-47F4-83EA-B136F6F84EC8}
- Size 4KB
- SHA256 05b185f65e15913b1ed90a6c8891a22b293605f0a18f0fc29a79d48bb08dc0b0
- MD5 ee86d622918ee4c34f4e9d17202197ff
- SHA1 2e62747320b944ae06661606942be796367067c9
- SHA512 1283fe7a67a5214cd45abdbbfc1420c2eb200d5a50131c674b8fab3f48aa69c9c031cf9d668b104b5138d43673fbb5f04259ed24aa389012ebdf13b16a97af2d
- SSDEEP 6:Ra8FfslbYyfB3h1RRXUnffgl//tlldFKlTRujlw//0lweI/URujd:RaNbYyf9/Uffgt/t/GcWf/9
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex
- Size 2B
- SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
- MD5 f3b25701fe362ec84616a93a45ce9998
- SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
- SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
- MD5 SHA1 SHA512
- Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
- Size 4KB
- SHA256 acf13ebc125f5fd1deb402413ff79979278573793e22a892b5c2b073a3e5d953
- MD5 31b09a834b259ce390798e034b7328fe
- SHA1 07f035cd11c299e8614b0156b22c37bf53c9fba7
- SHA512 63c13d3e02a6bbd1b888e368c0a97301c7a8e8ad01cb3de84b81c29fe898b7124dd05f9cd73b95d312c6f563c19d7a7f9df7c1189ef599d313086834c9c6de45
- SSDEEP 6:Ra8FfslbYyfBxh1RRXUnvFJtlldFKlTRujlw//0lwepVV4lYt/56lRRuj+4cT8Zg:RaNbYyfHj/UvFJt/GcW6/OsDmuEIxA/L
- MD5 SHA1 SHA512 SSDEEP
- Path F:\$RECYCLE.BIN\S-1-5-21-3411335054-1982420046-2118495756-1000\DDDDDDDDDDD
- Size 129B
- SHA256 7e5a5974d1cae6f96c57cd4353aefdeb307e41acaa72eb64c4531c9d0f48b778
- MD5 16d47c3b9157ba7c1b859664a7c7d3f1
- SHA1 58e9c2fc7656f0dc14d4a3ab4150b12314230675
- SHA512 5dd466920acd8df7cd3a8796773536991f7c3b17db456f4650332e7515c82d005b3b510f36b545744d9c72bcced6f2ca45004e65ea89d8c591417ade1af80ccc
- MD5 SHA1 SHA512