Analysis
- max time kernel
151s - max time network
133s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
06/01/2022, 20:01
Static task
static1
Behavioral task
behavioral1
Sample
23dfe6757086dde5e8463811731f60c6.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
23dfe6757086dde5e8463811731f60c6.exe
Resource
win10-en-20211208
General
- Target 23dfe6757086dde5e8463811731f60c6.exe
- Size 299KB
- Sample220106-yrlxeacaap
- SHA256 6c02cd3294f998736222c255ddd163b9d5e72dfbf3492bfdd43519a46ed609de
- MD5 23dfe6757086dde5e8463811731f60c6
- SHA1 ae8b0843895df4e84caaaa4b97943f0254fde566
- SHA512 9cf141bda0defe3804f16ab660b72cdac0c3047554a3718c3929c9d91a8f02febe2a11f4ff45bf056fdcf83aa693db5d28367c1167b84147246a348224240fea
- MD5 SHA1 SHA512
Malware Config
Extracted
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smokeloader
-
2020
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http://host-data-coin-11.com/
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http://file-coin-host-12.com/
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http://srtuiyhuali.at/
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http://fufuiloirtu.com/
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http://amogohuigotuli.at/
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http://novohudosovu.com/
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http://brutuilionust.com/
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http://bubushkalioua.com/
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http://dumuilistrati.at/
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http://verboliatsiaeeees.com/
Extracted
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raccoon
-
10da56e7e71e97bdc1f36eb76813bbc3231de7e4
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url4cnc
http://194.180.174.53/capibar
http://91.219.236.18/capibar
http://194.180.174.41/capibar
http://91.219.236.148/capibar
https://t.me/capibar
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
description pid Process procid_target PID 3484 created 1036 3484 WerFault.exe 83 - suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)
suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)
- suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
- Arkei Stealer Payload 3 IoCs
resource yara_rule behavioral2/memory/1796-138-0x00000000001C0000-0x00000000001DC000-memory.dmp family_arkei behavioral2/memory/1796-139-0x0000000000400000-0x0000000000462000-memory.dmp family_arkei behavioral2/memory/3548-184-0x0000000000E00000-0x0000000000EB6000-memory.dmp family_arkei - Downloads MZ/PE file
- Executes dropped EXE 10 IoCs
pid Process 3716 150B.exe 3144 27D8.exe 2776 27D8.exe 1796 3E7E.exe 704 5285.exe 1396 5285.exe 3548 BBFE.exe 1036 D1E8.exe 808 26F.exe 2536 F41.exe - Deletes itself 1 IoCs
pid Process 2472 Process not Found - Loads dropped DLL 6 IoCs
pid Process 1796 3E7E.exe 1796 3E7E.exe 1796 3E7E.exe 3548 BBFE.exe 3548 BBFE.exe 3548 BBFE.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe - Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 3548 BBFE.exe 2536 F41.exe - Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3988 set thread context of 1336 3988 23dfe6757086dde5e8463811731f60c6.exe 69 PID 3144 set thread context of 2776 3144 27D8.exe 72 PID 704 set thread context of 1396 704 5285.exe 75 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 2 IoCs
pid pid_target Process procid_target 3240 808 WerFault.exe 89 3484 1036 WerFault.exe 83 - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 23dfe6757086dde5e8463811731f60c6.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 23dfe6757086dde5e8463811731f60c6.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 23dfe6757086dde5e8463811731f60c6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 150B.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 150B.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 150B.exe - Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 3E7E.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 3E7E.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 BBFE.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString BBFE.exe - Delays execution with timeout.exe 2 IoCs
pid Process 3140 timeout.exe 3864 timeout.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1336 23dfe6757086dde5e8463811731f60c6.exe 1336 23dfe6757086dde5e8463811731f60c6.exe 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2472 Process not Found - Suspicious behavior: MapViewOfSection 6 IoCs
pid Process 1336 23dfe6757086dde5e8463811731f60c6.exe 3716 150B.exe 2472 Process not Found 2472 Process not Found 2472 Process not Found 2472 Process not Found - Suspicious use of AdjustPrivilegeToken 51 IoCs
description pid Process Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeDebugPrivilege 704 5285.exe Token: SeDebugPrivilege 1396 5285.exe Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeRestorePrivilege 3240 WerFault.exe Token: SeBackupPrivilege 3240 WerFault.exe Token: SeDebugPrivilege 3240 WerFault.exe Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeDebugPrivilege 2536 F41.exe Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeDebugPrivilege 3484 WerFault.exe Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found Token: SeShutdownPrivilege 2472 Process not Found Token: SeCreatePagefilePrivilege 2472 Process not Found - Suspicious use of WriteProcessMemory 63 IoCs
description pid Process procid_target PID 3988 wrote to memory of 1336 3988 23dfe6757086dde5e8463811731f60c6.exe 69 PID 3988 wrote to memory of 1336 3988 23dfe6757086dde5e8463811731f60c6.exe 69 PID 3988 wrote to memory of 1336 3988 23dfe6757086dde5e8463811731f60c6.exe 69 PID 3988 wrote to memory of 1336 3988 23dfe6757086dde5e8463811731f60c6.exe 69 PID 3988 wrote to memory of 1336 3988 23dfe6757086dde5e8463811731f60c6.exe 69 PID 3988 wrote to memory of 1336 3988 23dfe6757086dde5e8463811731f60c6.exe 69 PID 2472 wrote to memory of 3716 2472 Process not Found 70 PID 2472 wrote to memory of 3716 2472 Process not Found 70 PID 2472 wrote to memory of 3716 2472 Process not Found 70 PID 2472 wrote to memory of 3144 2472 Process not Found 71 PID 2472 wrote to memory of 3144 2472 Process not Found 71 PID 2472 wrote to memory of 3144 2472 Process not Found 71 PID 3144 wrote to memory of 2776 3144 27D8.exe 72 PID 3144 wrote to memory of 2776 3144 27D8.exe 72 PID 3144 wrote to memory of 2776 3144 27D8.exe 72 PID 3144 wrote to memory of 2776 3144 27D8.exe 72 PID 3144 wrote to memory of 2776 3144 27D8.exe 72 PID 3144 wrote to memory of 2776 3144 27D8.exe 72 PID 2472 wrote to memory of 1796 2472 Process not Found 73 PID 2472 wrote to memory of 1796 2472 Process not Found 73 PID 2472 wrote to memory of 1796 2472 Process not Found 73 PID 2472 wrote to memory of 704 2472 Process not Found 74 PID 2472 wrote to memory of 704 2472 Process not Found 74 PID 2472 wrote to memory of 704 2472 Process not Found 74 PID 704 wrote to memory of 1396 704 5285.exe 75 PID 704 wrote to memory of 1396 704 5285.exe 75 PID 704 wrote to memory of 1396 704 5285.exe 75 PID 704 wrote to memory of 1396 704 5285.exe 75 PID 704 wrote to memory of 1396 704 5285.exe 75 PID 704 wrote to memory of 1396 704 5285.exe 75 PID 704 wrote to memory of 1396 704 5285.exe 75 PID 704 wrote to memory of 1396 704 5285.exe 75 PID 2472 wrote to memory of 1964 2472 Process not Found 77 PID 2472 wrote to memory of 1964 2472 Process not Found 77 PID 2472 wrote to memory of 1964 2472 Process not Found 77 PID 2472 wrote to memory of 1964 2472 Process not Found 77 PID 2472 wrote to memory of 2200 2472 Process not Found 78 PID 2472 wrote to memory of 2200 2472 Process not Found 78 PID 2472 wrote to memory of 2200 2472 Process not Found 78 PID 1796 wrote to memory of 2844 1796 3E7E.exe 79 PID 1796 wrote to memory of 2844 1796 3E7E.exe 79 PID 1796 wrote to memory of 2844 1796 3E7E.exe 79 PID 2844 wrote to memory of 3140 2844 cmd.exe 81 PID 2844 wrote to memory of 3140 2844 cmd.exe 81 PID 2844 wrote to memory of 3140 2844 cmd.exe 81 PID 2472 wrote to memory of 3548 2472 Process not Found 82 PID 2472 wrote to memory of 3548 2472 Process not Found 82 PID 2472 wrote to memory of 3548 2472 Process not Found 82 PID 2472 wrote to memory of 1036 2472 Process not Found 83 PID 2472 wrote to memory of 1036 2472 Process not Found 83 PID 2472 wrote to memory of 1036 2472 Process not Found 83 PID 3548 wrote to memory of 2756 3548 BBFE.exe 86 PID 3548 wrote to memory of 2756 3548 BBFE.exe 86 PID 3548 wrote to memory of 2756 3548 BBFE.exe 86 PID 2756 wrote to memory of 3864 2756 cmd.exe 88 PID 2756 wrote to memory of 3864 2756 cmd.exe 88 PID 2756 wrote to memory of 3864 2756 cmd.exe 88 PID 2472 wrote to memory of 808 2472 Process not Found 89 PID 2472 wrote to memory of 808 2472 Process not Found 89 PID 2472 wrote to memory of 808 2472 Process not Found 89 PID 2472 wrote to memory of 2536 2472 Process not Found 92 PID 2472 wrote to memory of 2536 2472 Process not Found 92 PID 2472 wrote to memory of 2536 2472 Process not Found 92 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\23dfe6757086dde5e8463811731f60c6.exe"C:\Users\Admin\AppData\Local\Temp\23dfe6757086dde5e8463811731f60c6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3988 -
C:\Users\Admin\AppData\Local\Temp\23dfe6757086dde5e8463811731f60c6.exe"C:\Users\Admin\AppData\Local\Temp\23dfe6757086dde5e8463811731f60c6.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1336
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C:\Users\Admin\AppData\Local\Temp\150B.exeC:\Users\Admin\AppData\Local\Temp\150B.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3716
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C:\Users\Admin\AppData\Local\Temp\27D8.exeC:\Users\Admin\AppData\Local\Temp\27D8.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3144 -
C:\Users\Admin\AppData\Local\Temp\27D8.exeC:\Users\Admin\AppData\Local\Temp\27D8.exe2⤵
- Executes dropped EXE
PID:2776
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C:\Users\Admin\AppData\Local\Temp\3E7E.exeC:\Users\Admin\AppData\Local\Temp\3E7E.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1796 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3E7E.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2844 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:3140
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-
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C:\Users\Admin\AppData\Local\Temp\5285.exeC:\Users\Admin\AppData\Local\Temp\5285.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:704 -
C:\Users\Admin\AppData\Local\Temp\5285.exeC:\Users\Admin\AppData\Local\Temp\5285.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1396
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
PID:1964
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:2200
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C:\Users\Admin\AppData\Local\Temp\BBFE.exeC:\Users\Admin\AppData\Local\Temp\BBFE.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:3548 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\BBFE.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2756 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:3864
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C:\Users\Admin\AppData\Local\Temp\D1E8.exeC:\Users\Admin\AppData\Local\Temp\D1E8.exe1⤵
- Executes dropped EXE
PID:1036 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1036 -s 12122⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
- Suspicious use of AdjustPrivilegeToken
PID:3484
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C:\Users\Admin\AppData\Local\Temp\26F.exeC:\Users\Admin\AppData\Local\Temp\26F.exe1⤵
- Executes dropped EXE
PID:808 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 4002⤵
- Program crash
- Suspicious use of AdjustPrivilegeToken
PID:3240
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C:\Users\Admin\AppData\Local\Temp\F41.exeC:\Users\Admin\AppData\Local\Temp\F41.exe1⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
PID:2536