Analysis
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max time kernel
119s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13-09-2024 06:35
Behavioral task
behavioral1
Sample
20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe
Resource
win7-20240903-en
windows7-x64
16 signatures
150 seconds
Behavioral task
behavioral2
Sample
20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
21 signatures
150 seconds
General
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Target
20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe
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Size
146KB
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MD5
b21c2852af7dcd9ace66706377ba9c78
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SHA1
60ff856d7d54cbbd260c686bb91550187095e58a
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SHA256
aa7a61aeaeee53231fd2a8473895cbb2810baf9cd78ea3db6a984b03bc5eb68b
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SHA512
4307461cf0790acda6705aaefbf7330c425ea25f944166d3ba8c19809fe03953a552e35c5f95300b9aad8d227430bd173b568d51abbf6d296b964efcffdd07eb
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SSDEEP
3072:T6glyuxE4GsUPnliByocWepHUWKL10B17:T6gDBGpvEByocWeJ6IV
Malware Config
Signatures
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Renames multiple (311) 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 1552 783C.tmp -
Executes dropped EXE 1 IoCs
pid Process 1552 783C.tmp -
Loads dropped DLL 1 IoCs
pid Process 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.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-1-5-21-4177215427-74451935-3209572229-1000\desktop.ini 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-4177215427-74451935-3209572229-1000\desktop.ini 20240912b21c2852af7dcd9ace66706377ba9c78darkside.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-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\fjTsbCI2x.bmp" 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\fjTsbCI2x.bmp" 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
pid Process 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 1552 783C.tmp -
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 783C.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\Desktop 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\Desktop\WallpaperStyle = "10" 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.fjTsbCI2x 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.fjTsbCI2x\ = "fjTsbCI2x" 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\fjTsbCI2x\DefaultIcon 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\fjTsbCI2x 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\fjTsbCI2x\DefaultIcon\ = "C:\\ProgramData\\fjTsbCI2x.ico" 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp 1552 783C.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeDebugPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: 36 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeImpersonatePrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeIncBasePriorityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeIncreaseQuotaPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: 33 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeManageVolumePrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeProfSingleProcessPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeRestorePrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSystemProfilePrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeTakeOwnershipPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeShutdownPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeDebugPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeBackupPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe Token: SeSecurityPrivilege 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2852 wrote to memory of 1552 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 32 PID 2852 wrote to memory of 1552 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 32 PID 2852 wrote to memory of 1552 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 32 PID 2852 wrote to memory of 1552 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 32 PID 2852 wrote to memory of 1552 2852 20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe 32 PID 1552 wrote to memory of 1664 1552 783C.tmp 33 PID 1552 wrote to memory of 1664 1552 783C.tmp 33 PID 1552 wrote to memory of 1664 1552 783C.tmp 33 PID 1552 wrote to memory of 1664 1552 783C.tmp 33
Processes
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C:\Users\Admin\AppData\Local\Temp\20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe"C:\Users\Admin\AppData\Local\Temp\20240912b21c2852af7dcd9ace66706377ba9c78darkside.exe"1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2852 -
C:\ProgramData\783C.tmp"C:\ProgramData\783C.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:1552 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\783C.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:1664
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:2400
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD5365f686b3f2b9f581b90056af9947aed
SHA1ad9a7d628cc12af3897c6e36937c44f6a52ffce4
SHA25668dda97553afe5eb152f9e68bf4f50fd7771cc42e8fedd15071511a32e29cefd
SHA5128515e1ff6ef4ca669195ca1afc410ca88c9729e49d7b3e0132c973adee08d5c85af6fb267e7acceb55159c72f24610574cc30d769d6ca1fc55bf2aa30c1eb824
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Filesize
146KB
MD5f9199d77c7036f3cbb706a16e6d0391a
SHA1d83deeddca66fa28a627531bbbc8a1747ae43dda
SHA256c5a285b226f5a990b3f2170544667757b239ee17476a557b4ee6a4873511ae6c
SHA512942f989dfa0b78ad1ed95b40972cbd8439c8facbb0e3c940dc81b2f510f04897bb6d9d0c3dfc74494bc54264f00d860b1f246e8fbb742f66b6c5e97ea1a65d1c
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Filesize
343B
MD572b1ffaeb7de456483f491ecceadb088
SHA1ee1953abc295245ab01f35a4a823883826bf2b41
SHA256eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7
SHA512c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445
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Filesize
129B
MD5a868571a48f9643a9ecad58ecac759c8
SHA14a750c2c0fb29386c801254d9d8fd632f3c9c61f
SHA256690f609bfd84ad0788316371d5bce5f83d59516f21512d70fc3d84a337f52231
SHA512966d93b8b89bea8a2e7be956470d9dcc2aa3da3a9fd5d62b7df06df874c16469a6bb849df7ffb4f8cce09965a34d7a747317ed27385ad344eabd3ccb38b40298
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf