Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
26/11/2024, 17:10
Behavioral task
behavioral1
Sample
PepperX (1).exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral2
Sample
PepperX (1).exe
Resource
win10v2004-20241007-en
windows10-2004-x64
General
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Target
PepperX (1).exe
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Size
146KB
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MD5
39c9477cf131ca5ccc05c8871c0e10e6
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SHA1
07b2581b2cb41053d09c4bb896aaabc1d28f2a7b
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SHA256
939281eac1c6e5aa2e4238a1e545e67b2609c15f517474b2a5133bb64fe9c1eb
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SHA512
689fd585232031f746b1573d3ed66ac329420611d4e1092ce6952b49ab0c168091726bd02189a4e183d1196ced4f51953e4eb25a5219a36f86d8f6761da9f129
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SSDEEP
1536:xzICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDqk3sA9atm8z+L8QBfuSoyAMjwT:KqJogYkcSNm9V7D7352v+L8DnyAewT
Malware Config
Signatures
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Renames multiple (343) 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 856 8871.tmp -
Executes dropped EXE 1 IoCs
pid Process 856 8871.tmp -
Loads dropped DLL 1 IoCs
pid Process 2816 PepperX (1).exe -
Reads user/profile data of web browsers 3 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-1-5-21-312935884-697965778-3955649944-1000\desktop.ini PepperX (1).exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-312935884-697965778-3955649944-1000\desktop.ini PepperX (1).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-1-5-21-312935884-697965778-3955649944-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1pvSvxmZY.bmp" PepperX (1).exe Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1pvSvxmZY.bmp" PepperX (1).exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 856 8871.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 PepperX (1).exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8871.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Control Panel\Desktop PepperX (1).exe Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Control Panel\Desktop\WallpaperStyle = "10" PepperX (1).exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY PepperX (1).exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY\ = "1pvSvxmZY" PepperX (1).exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon PepperX (1).exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY PepperX (1).exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon\ = "C:\\ProgramData\\1pvSvxmZY.ico" PepperX (1).exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe 2816 PepperX (1).exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp 856 8871.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeDebugPrivilege 2816 PepperX (1).exe Token: 36 2816 PepperX (1).exe Token: SeImpersonatePrivilege 2816 PepperX (1).exe Token: SeIncBasePriorityPrivilege 2816 PepperX (1).exe Token: SeIncreaseQuotaPrivilege 2816 PepperX (1).exe Token: 33 2816 PepperX (1).exe Token: SeManageVolumePrivilege 2816 PepperX (1).exe Token: SeProfSingleProcessPrivilege 2816 PepperX (1).exe Token: SeRestorePrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSystemProfilePrivilege 2816 PepperX (1).exe Token: SeTakeOwnershipPrivilege 2816 PepperX (1).exe Token: SeShutdownPrivilege 2816 PepperX (1).exe Token: SeDebugPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeBackupPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe Token: SeSecurityPrivilege 2816 PepperX (1).exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2816 wrote to memory of 856 2816 PepperX (1).exe 32 PID 2816 wrote to memory of 856 2816 PepperX (1).exe 32 PID 2816 wrote to memory of 856 2816 PepperX (1).exe 32 PID 2816 wrote to memory of 856 2816 PepperX (1).exe 32 PID 2816 wrote to memory of 856 2816 PepperX (1).exe 32 PID 856 wrote to memory of 2392 856 8871.tmp 33 PID 856 wrote to memory of 2392 856 8871.tmp 33 PID 856 wrote to memory of 2392 856 8871.tmp 33 PID 856 wrote to memory of 2392 856 8871.tmp 33
Processes
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C:\Users\Admin\AppData\Local\Temp\PepperX (1).exe"C:\Users\Admin\AppData\Local\Temp\PepperX (1).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:2816 -
C:\ProgramData\8871.tmp"C:\ProgramData\8871.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:856 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\8871.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:2392
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:1228
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD50211bb3e8727652713e7736bd8b9dfe6
SHA1009a94b56df45c611d4fb436e4ce5754a89d8286
SHA256d41b81483af900ec6bf317dc252bf3241a7c3b96042b100df9532acfa63bcd9a
SHA512b2d4223e834322ff9b98067ee0202c5e479564717bb6e6b97c4d895c710aceff887fafbe9c2526d0bb26ae462b6f129ea7faa92fda496eee7767bcc2366a2305
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Filesize
348B
MD59810eed5ecd966874ebeb398ac6531ed
SHA117d2e2bc15df652734b79185cb323e652559fd6a
SHA25653183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e
SHA512b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79
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Filesize
146KB
MD592e33a014f1ee40f31f291be05ee38c4
SHA183acc49e1be23291fda74902204e389fccbfdd5a
SHA256561c88238ceb70953cc652d6dee141d608e422c34171ffafb417fa789f1e1e1a
SHA5129470ffb84c14625ae8c69e909189b06ee438f52ef403b2c3fbe5043a60c82530fd722f9410da8f2716abe5103dbeffdb3383660a627f39b095b4b5d09ebc6f28
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Filesize
129B
MD56e96ba742e1c6a1e84897bec5bc9b217
SHA181965ebc62ccd318ae1aefe0db6c707d2ab32c5b
SHA256b7f7f7ec760da47f7a5f0ffe823f73762a91250bc7b4dc10c546781b49994bd1
SHA51209780c17bb2bea4676a7512e589318b18cd544b887cf9e82d129bea81db541b14decec679effd18a92ef127bd9bf72500eed70d1edc5292ec6a4c6f635e1c67b
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf