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Analysis
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max time kernel
618s -
max time network
438s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
26/11/2024, 17:14
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 (594) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation D543.tmp -
Deletes itself 1 IoCs
pid Process 1748 D543.tmp -
Executes dropped EXE 1 IoCs
pid Process 1748 D543.tmp -
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-1-5-21-2878641211-696417878-3864914810-1000\desktop.ini PepperX (1).exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2878641211-696417878-3864914810-1000\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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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\PPf0y8c2p3ttewqegs6vfb7h_ad.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PPdg5t2kdwlyvss2lcb7xqcr_6b.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PPwo2s0ojh0v78iyu2rls2uu32c.TMP printfilterpipelinesvc.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1pvSvxmZY.bmp" PepperX (1).exe Set value (str) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1pvSvxmZY.bmp" PepperX (1).exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 1748 D543.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 D543.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
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\SystemSKU ONENOTE.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily ONENOTE.EXE -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\Desktop PepperX (1).exe Set value (str) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\Desktop\WallpaperStyle = "10" PepperX (1).exe -
Modifies registry class 5 IoCs
description ioc Process 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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY PepperX (1).exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 4684 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 4108 ONENOTE.EXE 4108 ONENOTE.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe 1928 PepperX (1).exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp 1748 D543.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeDebugPrivilege 1928 PepperX (1).exe Token: 36 1928 PepperX (1).exe Token: SeImpersonatePrivilege 1928 PepperX (1).exe Token: SeIncBasePriorityPrivilege 1928 PepperX (1).exe Token: SeIncreaseQuotaPrivilege 1928 PepperX (1).exe Token: 33 1928 PepperX (1).exe Token: SeManageVolumePrivilege 1928 PepperX (1).exe Token: SeProfSingleProcessPrivilege 1928 PepperX (1).exe Token: SeRestorePrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSystemProfilePrivilege 1928 PepperX (1).exe Token: SeTakeOwnershipPrivilege 1928 PepperX (1).exe Token: SeShutdownPrivilege 1928 PepperX (1).exe Token: SeDebugPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeBackupPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe Token: SeSecurityPrivilege 1928 PepperX (1).exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4684 NOTEPAD.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE 4108 ONENOTE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1928 wrote to memory of 1428 1928 PepperX (1).exe 93 PID 1928 wrote to memory of 1428 1928 PepperX (1).exe 93 PID 5072 wrote to memory of 4108 5072 printfilterpipelinesvc.exe 102 PID 5072 wrote to memory of 4108 5072 printfilterpipelinesvc.exe 102 PID 1928 wrote to memory of 1748 1928 PepperX (1).exe 103 PID 1928 wrote to memory of 1748 1928 PepperX (1).exe 103 PID 1928 wrote to memory of 1748 1928 PepperX (1).exe 103 PID 1928 wrote to memory of 1748 1928 PepperX (1).exe 103 PID 1748 wrote to memory of 2616 1748 D543.tmp 105 PID 1748 wrote to memory of 2616 1748 D543.tmp 105 PID 1748 wrote to memory of 2616 1748 D543.tmp 105
Processes
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C:\Users\Admin\AppData\Local\Temp\PepperX (1).exe"C:\Users\Admin\AppData\Local\Temp\PepperX (1).exe"1⤵
- 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:1928 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
- Drops file in System32 directory
PID:1428
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C:\ProgramData\D543.tmp"C:\ProgramData\D543.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1748 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\D543.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:2616
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:1896
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:5072 -
C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{3CEFB075-FCCC-42A5-9B47-4AFCBB8CA76E}.xps" 1337711489315500002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4108
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\1pvSvxmZY.README.txt1⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of FindShellTrayWindow
PID:4684
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD56edcb035c9dfbc2789ac3ae9ac9b0c8c
SHA17d18f278763695c4f4006556745083ec3c1386a4
SHA2560c512c03ebab253f272c9b8905e484a88c1bd324eaf3e07e0de453d13b224ee9
SHA512059740f3771bce1481ca0db84bb58708aa595551501316073ff1eeef3072b05ea8de60f5ab020a8e8e1e999744333d2d4d32cb5b0c5225af36e5613fc36dad6e
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Filesize
348B
MD59810eed5ecd966874ebeb398ac6531ed
SHA117d2e2bc15df652734b79185cb323e652559fd6a
SHA25653183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e
SHA512b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
146KB
MD552e4154d66f3ce1f363d4e711bcac74e
SHA1a5c81539eca857d160c750e8c5617604af96142f
SHA2561a231efb2688b6746ab221f95d2e25a0a8236cd1770313156ee089333ceef0e1
SHA512a2c925a55de147fa3a9a1db9c6a8aa6e37ab12b1f30d9f8164e6af6f3ae640c4ef3788ca20daf845aa718ee1403c230c155e451faf3f2950cf2f5974a6e267f4
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Filesize
4KB
MD5cd2402e8bb90070e57a6932cfa962835
SHA1a271ce8fe74343b9af083a4c34f5c897294f0360
SHA25631ac1a08ac864048d5952c0ff30478a9dc8d5b19a58b0b54ce7469b196169ba7
SHA512ae8a289cb79e7f9a113a201a622aacb340f70edc6209d35d2f4c9a64390b5065bae2f27be96a276a242c6d6139991f239e638013a16f7c2e5fdc885842df8021
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Filesize
4KB
MD5fdd29b789f11b36816328a09c14d73a2
SHA1e51e5b33a13ded8175d441b8c43a1918eb9c7999
SHA25616243088527ad01ef392bfa88b7e8c643bc8450c42fd5152b5f34dfaab7d8eea
SHA512b93ed284e7cbb21e9aef2a7a3ebc916c12774f56129d926561d449d96ab14e54e8b00a53efb6b9acedcd3e35ccd1e40e1af6a811553abbe8944e1f803845e18f
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Filesize
129B
MD598192d83bbfe7fa0faff7976bbe98be1
SHA110ee50e2ed4f3be5d25f6f244a8b40b3bbe7192e
SHA25617b98ca5b9e32420307ebbd5d18b1e1daa1fa0d00df4e2f476194580637db87a
SHA5128909e2a534a009a1d388cfadc9983dde07385a427e0ef85b705a4155e90feca105bb4e47979440a9ddc267de0c3726875eabbdefa8f3fc50c751543f44b513be