Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
28/08/2024, 13:39
Static task
static1
Behavioral task
behavioral1
Sample
WebAdvisorInstall.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
WebAdvisorInstall.exe
Resource
win10v2004-20240802-en
General
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Target
WebAdvisorInstall.exe
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Size
5.1MB
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MD5
be8bf725892ddd7a200d0a1906b9387f
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SHA1
582a24a72b29e70f2de26a8d217492c7a6b983ff
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SHA256
166bba02413995aff28ffeb27d3bf3d5a5f6a6cd36893e252c7b9a22836f4980
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SHA512
32d9d97692255e84cbd8c24794627bdfaa8ae41942bd449b678906f01d8b667d9d9785440f562132878987c682169b8ba9f9242a9f2abdf4b197d425ff1e7cb8
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SSDEEP
98304:MjHm6/Pi0bzB+Ot7nM3wnuZFm0qRttZYtToFbSO7VKoFbSO7VyoFbSO7VKoFbSO5:O5unMkMsMkM
Malware Config
Extracted
C:\wlJ8FiR2h.README.txt
lockbit
http://lockbitsupt7nr3fa6e7xyb73lk6bw6rcneqhoyblniiabj4uwvzapqd.onion
http://lockbitsupuhswh4izvoucoxsbnotkmgq6durg7kficg6u33zfvq3oyd.onion
http://lockbitsupn2h6be2cnqpvncyhj4rgmnwn44633hnzzmtxdvjoqlp7yd.onion
http://lockbitsupp.uz
http://lockbitapt2yfbt7lchxejug47kmqvqqxvvjpqkmevv4l3azl3gy6pyd.onion
http://lockbitapt5x4zkjbcqmz6frdhecqqgadevyiwqxukksspnlidyvd7qd.onion
http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion
http://lockbitapt34kvrip6xojylohhxrwsvpzdffgs5z4pbbsywnzsbdguqd.onion
http://lockbitaptc2iq4atewz2ise62q63wfktyrl4qtwuk5qax262kgtzjqd.onion
http://lockbitaptjpikdqjynvgozhgc6bgetgucdk5xjacozeaawihmoio6yd.onion
http://lockbitaptq7ephv2oigdncfhtwhpqgwmqojnxqdyhprxxfpcllqdxad.onion
http://lockbitaptstzf3er2lz6ku3xuifafq2yh5lmiqj5ncur6rtlmkteiqd.onion
http://lockbitaptoofrpignlz6dt2wqqc5z3a4evjevoa3eqdfcntxad5lmyd.onion
Signatures
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Lockbit
Ransomware family with multiple variants released since late 2019.
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Rule to detect Lockbit 3.0 ransomware Windows payload 1 IoCs
resource yara_rule behavioral2/files/0x000a0000000233f9-9.dat family_lockbit -
Renames multiple (617) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation WebAdvisorInstall.exe Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation C0EF.tmp -
Executes dropped EXE 2 IoCs
pid Process 3492 ggc.exe 448 C0EF.tmp -
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
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-656926755-4116854191-210765258-1000\desktop.ini ggc.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-656926755-4116854191-210765258-1000\desktop.ini ggc.exe -
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
description ioc Process File created C:\Windows\system32\spool\PRINTERS\00002.SPL splwow64.exe File created C:\Windows\system32\spool\PRINTERS\PP6cbmdq4n0_kyrt55ldc1x194d.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PPzzwt6moqq60it0io62henm70b.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PPgi0pjy50849imahub3cjn6rxb.TMP printfilterpipelinesvc.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\wlJ8FiR2h.bmp" ggc.exe Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\wlJ8FiR2h.bmp" ggc.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 448 C0EF.tmp -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ggc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C0EF.tmp -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 ONENOTE.EXE 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 -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU ONENOTE.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS ONENOTE.EXE -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\Desktop ggc.exe Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\Desktop\WallpaperStyle = "10" ggc.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wlJ8FiR2h ggc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.wlJ8FiR2h\ = "wlJ8FiR2h" ggc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\wlJ8FiR2h\DefaultIcon ggc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\wlJ8FiR2h ggc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\wlJ8FiR2h\DefaultIcon\ = "C:\\ProgramData\\wlJ8FiR2h.ico" ggc.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe 3492 ggc.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeDebugPrivilege 3492 ggc.exe Token: 36 3492 ggc.exe Token: SeImpersonatePrivilege 3492 ggc.exe Token: SeIncBasePriorityPrivilege 3492 ggc.exe Token: SeIncreaseQuotaPrivilege 3492 ggc.exe Token: 33 3492 ggc.exe Token: SeManageVolumePrivilege 3492 ggc.exe Token: SeProfSingleProcessPrivilege 3492 ggc.exe Token: SeRestorePrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSystemProfilePrivilege 3492 ggc.exe Token: SeTakeOwnershipPrivilege 3492 ggc.exe Token: SeShutdownPrivilege 3492 ggc.exe Token: SeDebugPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeBackupPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe Token: SeSecurityPrivilege 3492 ggc.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE 3524 ONENOTE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4148 wrote to memory of 3492 4148 WebAdvisorInstall.exe 91 PID 4148 wrote to memory of 3492 4148 WebAdvisorInstall.exe 91 PID 4148 wrote to memory of 3492 4148 WebAdvisorInstall.exe 91 PID 3492 wrote to memory of 5872 3492 ggc.exe 99 PID 3492 wrote to memory of 5872 3492 ggc.exe 99 PID 2020 wrote to memory of 3524 2020 printfilterpipelinesvc.exe 104 PID 2020 wrote to memory of 3524 2020 printfilterpipelinesvc.exe 104 PID 3492 wrote to memory of 448 3492 ggc.exe 105 PID 3492 wrote to memory of 448 3492 ggc.exe 105 PID 3492 wrote to memory of 448 3492 ggc.exe 105 PID 3492 wrote to memory of 448 3492 ggc.exe 105 PID 448 wrote to memory of 1600 448 C0EF.tmp 106 PID 448 wrote to memory of 1600 448 C0EF.tmp 106 PID 448 wrote to memory of 1600 448 C0EF.tmp 106
Processes
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C:\Users\Admin\AppData\Local\Temp\WebAdvisorInstall.exe"C:\Users\Admin\AppData\Local\Temp\WebAdvisorInstall.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4148 -
C:\Users\Admin\AppData\Local\Temp\ggc.exe"C:\Users\Admin\AppData\Local\Temp\ggc.exe"2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3492 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122883⤵
- Drops file in System32 directory
PID:5872
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C:\ProgramData\C0EF.tmp"C:\ProgramData\C0EF.tmp"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\C0EF.tmp >> NUL4⤵
- System Location Discovery: System Language Discovery
PID:1600
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:5924
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{8742C4D4-44F0-46C1-A992-1348D8BB6031}.xps" 1336932600849700002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
PID:3524
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD559860345a5aa1b24389734e25010163e
SHA17034362d70b4443e761df667813a1731c2bd1dc4
SHA2568139bb83b190675254f68753993c228e066975f8fdc82587972f5d7baa8c7376
SHA512a7837bc148be47c84643d92e5c54ff8a69a9b79735bec985d7ffb7ed7f9f26010f5158d62054be4c9059d77ee7de174f7c97631d3f0fa45a65cc74d75623edcc
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
150KB
MD5e4ce9604674e49b0e486a2b2aa9dcf60
SHA108f1af855fd5cf32c0c3d078f131aae1d6629ae6
SHA2564c061fd5c8ea995382065a35cd257cecb1399b229f726212e0dcd57d6833e57f
SHA512f0ca67ac9c5026a3663f2754e45a07e6b6ecbb6f025d182d043a71275653c660fafff7dce9465038ef7597e192e6737d677686a1f1d1006d84df982e532f1af9
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Filesize
150KB
MD57e503c206e57f0295da017914a957d04
SHA196c375b9c57292db73c7ef2f2df16cf7be1604bb
SHA256274844568a6a9ce334d71efeac21f528d7b54b2cd4377c978cc1270c6ad986c4
SHA512cd4889ae107c54df854042e030eb431664d4db9d6dc908d1f1910ca49b89d247222f9d19440fcc2d9a120c95b56cd694750072ab9486eea961b8c33391344c1c
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Filesize
4KB
MD5a18f794b2a96fa8801d0fdf909185864
SHA14bf15eb14187b17c2714483ca129e88d61a54a1d
SHA256d96b3656340ae1a537ce3493ec6958ed8060809b8d3020b708732ad4a41db80c
SHA51216259445d66ce5d1cd4a8b6defd4f2f38558c30da727081b9ed1285939692d12bf22434017749e1a63bccf1e72ee48698ba5aa9670d8fa21cde84a5e8ff79221
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Filesize
3KB
MD5b9674de0868a93e9121bdb1d02d80130
SHA179d692fd03d3110a4358e2cc7442af9517489f3f
SHA2569268d24e96639cf4c0e8d74f9769092b415015692ea528820faaded6fc5b052c
SHA512b3264ad33eddedb2c18da883e2345247c762adc8a604991fce931cba06b86c361d23fa121e79d6c69948a2d5b9c1613139f401b971360d9d684abb5a61543c02
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Filesize
129B
MD575157eeb4234fda637fad4790ffbf5a6
SHA1d4372da633646e72d08f4bdafed1fa4e3e57763b
SHA256c487b9589450449cf7fc659ef4dc0fdc5feffe48ac950e3993dbbf898b4f667c
SHA512bcf8032110010ecdb37eacf191c09cc41471fe49f2a8d9b4af11339385969d8c95e26dc215491c59e33836fa7e223b12d6b68f3fbc9bc74e86c5fa1cdbbcbc82