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Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
30/07/2024, 17:51
Behavioral task
behavioral1
Sample
LB3.exe
Resource
win7-20240708-en
General
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Target
LB3.exe
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Size
147KB
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MD5
11c051782c327c662507801124f0b95b
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SHA1
5dd92a1ab1cfc5b73b5dcdb3edd6ea6d498339df
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SHA256
3c13ae9a53b29849fd3bb75d3259a23658cd687441f8bdd610487007c51d2eac
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SHA512
239f6eba567c59cf956e4f6c8ffe6588bb2b16ede03e939f79db69ae23631881285475f634780a40f94038035fb1329743c9b57c92a9690ec927f6d372d9ca2e
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SSDEEP
1536:GzICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDuc1UR7zBEDZhT+IhMjo9Uyz:9qJogYkcSNm9V7DJ1URfqVXmjo9T
Malware Config
Extracted
C:\d093fD6aI.README.txt
https://coinatmradar.com
https://www.moonpay.com/buy
https://tox.chat/download.html
Signatures
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Renames multiple (340) 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
pid Process 768 5BB.tmp -
Executes dropped EXE 1 IoCs
pid Process 768 5BB.tmp -
Loads dropped DLL 1 IoCs
pid Process 2632 LB3.exe -
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-1-5-21-940600906-3464502421-4240639183-1000\desktop.ini LB3.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-940600906-3464502421-4240639183-1000\desktop.ini LB3.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\d093fD6aI.bmp" LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\d093fD6aI.bmp" LB3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 768 5BB.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 5BB.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LB3.exe -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Control Panel\Desktop LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Control Panel\Desktop\WallpaperStyle = "10" LB3.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.d093fD6aI\ = "d093fD6aI" LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\d093fD6aI\DefaultIcon LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\d093fD6aI LB3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\d093fD6aI\DefaultIcon\ = "C:\\ProgramData\\d093fD6aI.ico" LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.d093fD6aI LB3.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe 2632 LB3.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp 768 5BB.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeDebugPrivilege 2632 LB3.exe Token: 36 2632 LB3.exe Token: SeImpersonatePrivilege 2632 LB3.exe Token: SeIncBasePriorityPrivilege 2632 LB3.exe Token: SeIncreaseQuotaPrivilege 2632 LB3.exe Token: 33 2632 LB3.exe Token: SeManageVolumePrivilege 2632 LB3.exe Token: SeProfSingleProcessPrivilege 2632 LB3.exe Token: SeRestorePrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSystemProfilePrivilege 2632 LB3.exe Token: SeTakeOwnershipPrivilege 2632 LB3.exe Token: SeShutdownPrivilege 2632 LB3.exe Token: SeDebugPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeBackupPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe Token: SeSecurityPrivilege 2632 LB3.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2632 wrote to memory of 768 2632 LB3.exe 33 PID 2632 wrote to memory of 768 2632 LB3.exe 33 PID 2632 wrote to memory of 768 2632 LB3.exe 33 PID 2632 wrote to memory of 768 2632 LB3.exe 33 PID 2632 wrote to memory of 768 2632 LB3.exe 33 PID 768 wrote to memory of 2120 768 5BB.tmp 34 PID 768 wrote to memory of 2120 768 5BB.tmp 34 PID 768 wrote to memory of 2120 768 5BB.tmp 34 PID 768 wrote to memory of 2120 768 5BB.tmp 34
Processes
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C:\Users\Admin\AppData\Local\Temp\LB3.exe"C:\Users\Admin\AppData\Local\Temp\LB3.exe"1⤵
- Loads dropped DLL
- 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:2632 -
C:\ProgramData\5BB.tmp"C:\ProgramData\5BB.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:768 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\5BB.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:2120
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:2656
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD564e9a06f21510c2fc4b0532ef9bf4ab6
SHA1b3ff7ac0168c588bcaa633fff639053127a2c304
SHA2565e6e8d1a615c379d762de0ed017f16da32ab108299a5213ecfca0800ba153580
SHA512ac3faa1d7e54be78c7f3162bf785066a0134e3cf658a4e09b111d6080ca9b163161edda61762f75cc13b7787824ca549ec30c0a2d2a2cecdfbcedb7e0ca0037a
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Filesize
147KB
MD556a78d1de25d0ac0bbd5f18c824323b0
SHA1e6edba3e6bb2c80293691321bb44281d63264e19
SHA256ac924840ef805e73884946dc1ad87bfd311d96a28de327af173b3d52e2b20e2b
SHA5121d9d74fc8bf3b54db7925394a03d5557bbd183ec77d8f93d13ef29c3b265d0a9bc1d0fcb3d2839fad823ba9ac4094840c486b0fd29891b1e72d41c36887b8f4c
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Filesize
1KB
MD5c98594c43506b3f4802ebd608ba6be0f
SHA1d8e090434533229fbdcc104b6a43903bfdf8c081
SHA256804575f74fe5b2f28c181f3413b23a0355693ffd9a2c1e69546bb598ce67ebae
SHA5125e3767a0606dae51c49a41ddfde2dd90a17eb53c79212d46c556141bcc6c54bd1c06348a7077251ff75228a5e3604880cabb1309a68490736203e3c49f5c6cba
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Filesize
129B
MD5bf88f00531165fc4565dba7f4dc6dfbe
SHA1a302e6af21924d9d303da846b3ff55e5218909cb
SHA25677c7ee262165b0b4df7822762963ce8ff55f74615d2c8c458cf5644340784e55
SHA512b6fbf08fcaec87159771126ff8a642c26c90961c0ae1d2aa8795a2f28429775152725f909bca20debc8ab2737e6baf5f58e7a8a518175c81fef43695e3cc0533
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf