Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
21-05-2024 07:26
Static task
static1
Behavioral task
behavioral1
Sample
627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe
Resource
win10v2004-20240426-en
General
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Target
627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe
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Size
1.1MB
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MD5
627f3cba7a3abb0d2a5cbee34640021d
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SHA1
dba764c03b1aca0bc6d6ba120a50d156aba1b903
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SHA256
3e4fac54cce7264dd495969574e418f0ee9a600285f68e51cfd661391626f376
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SHA512
53d9d4d95969980c1e75f05a542cd7ca58841e18a89befc43733b61f87c2d6be93765b071267938aa08581534635d1e6c12bae6934b68dc1f73254e601dab937
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SSDEEP
12288:WDb7BqrErn/mxx7E6vMJaxKwWoFJm6y2o/Yc4/P2x1AFpvQ0jlG43d0vYQRHpr0z:WFBrny7d7eqq2Z32qo0G4WjJphEDoRKz
Malware Config
Signatures
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main payload 6 IoCs
Processes:
resource yara_rule behavioral2/memory/4728-27-0x0000000000400000-0x0000000000542000-memory.dmp family_masslogger behavioral2/memory/4728-25-0x0000000000400000-0x0000000000542000-memory.dmp family_masslogger behavioral2/memory/4728-24-0x0000000000BA0000-0x0000000000C3A000-memory.dmp family_masslogger behavioral2/memory/4728-23-0x0000000000BA0000-0x0000000000C3A000-memory.dmp family_masslogger behavioral2/memory/4728-20-0x0000000000400000-0x0000000000542000-memory.dmp family_masslogger behavioral2/memory/4728-59-0x0000000000400000-0x0000000000542000-memory.dmp family_masslogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
bjsbjsf.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation bjsbjsf.exe -
Drops startup file 1 IoCs
Processes:
notepad.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\win.vbs notepad.exe -
Executes dropped EXE 3 IoCs
Processes:
bjsbjsf.exebjsbjsf.exebjsbjsf.exepid Process 1484 bjsbjsf.exe 4728 bjsbjsf.exe 2524 bjsbjsf.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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Processes:
resource yara_rule behavioral2/memory/4728-16-0x0000000000400000-0x0000000000542000-memory.dmp upx behavioral2/memory/4728-27-0x0000000000400000-0x0000000000542000-memory.dmp upx behavioral2/memory/4728-25-0x0000000000400000-0x0000000000542000-memory.dmp upx behavioral2/memory/4728-20-0x0000000000400000-0x0000000000542000-memory.dmp upx behavioral2/memory/4728-19-0x0000000000400000-0x0000000000542000-memory.dmp upx -
Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
Processes:
bjsbjsf.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key opened \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key opened \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key opened \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook bjsbjsf.exe Key opened \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key opened \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key opened \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key opened \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe Key created \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 26 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bjsbjsf.exedescription pid Process procid_target PID 1484 set thread context of 4728 1484 bjsbjsf.exe 84 -
NTFS ADS 1 IoCs
Processes:
notepad.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe:ZoneIdentifier notepad.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
bjsbjsf.exepid Process 4728 bjsbjsf.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exebjsbjsf.exebjsbjsf.exepid Process 3860 627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe 3860 627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe 1484 bjsbjsf.exe 1484 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe 2524 bjsbjsf.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
bjsbjsf.exepid Process 1484 bjsbjsf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bjsbjsf.exedescription pid Process Token: SeDebugPrivilege 4728 bjsbjsf.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
bjsbjsf.exepid Process 4728 bjsbjsf.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exenotepad.exebjsbjsf.exedescription pid Process procid_target PID 3860 wrote to memory of 1432 3860 627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe 82 PID 3860 wrote to memory of 1432 3860 627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe 82 PID 3860 wrote to memory of 1432 3860 627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe 82 PID 3860 wrote to memory of 1432 3860 627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe 82 PID 3860 wrote to memory of 1432 3860 627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe 82 PID 1432 wrote to memory of 1484 1432 notepad.exe 83 PID 1432 wrote to memory of 1484 1432 notepad.exe 83 PID 1432 wrote to memory of 1484 1432 notepad.exe 83 PID 1484 wrote to memory of 4728 1484 bjsbjsf.exe 84 PID 1484 wrote to memory of 4728 1484 bjsbjsf.exe 84 PID 1484 wrote to memory of 4728 1484 bjsbjsf.exe 84 PID 1484 wrote to memory of 2524 1484 bjsbjsf.exe 85 PID 1484 wrote to memory of 2524 1484 bjsbjsf.exe 85 PID 1484 wrote to memory of 2524 1484 bjsbjsf.exe 85 -
outlook_office_path 1 IoCs
Processes:
bjsbjsf.exedescription ioc Process Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe -
outlook_win_path 1 IoCs
Processes:
bjsbjsf.exedescription ioc Process Key queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bjsbjsf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\627f3cba7a3abb0d2a5cbee34640021d_JaffaCakes118.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3860 -
C:\Windows\SysWOW64\notepad.exe"C:\Windows\system32\notepad.exe"2⤵
- Drops startup file
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:1432 -
C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe"C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1484 -
C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe"C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4728
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C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe"C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe" 2 4728 2405941874⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2524
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.1MB
MD5627f3cba7a3abb0d2a5cbee34640021d
SHA1dba764c03b1aca0bc6d6ba120a50d156aba1b903
SHA2563e4fac54cce7264dd495969574e418f0ee9a600285f68e51cfd661391626f376
SHA51253d9d4d95969980c1e75f05a542cd7ca58841e18a89befc43733b61f87c2d6be93765b071267938aa08581534635d1e6c12bae6934b68dc1f73254e601dab937