Analysis
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max time kernel
145s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25/05/2024, 20:46
Static task
static1
Behavioral task
behavioral1
Sample
7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe
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Size
208KB
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MD5
7331eab5ec14421887055a48dfc366eb
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SHA1
5cb902264bcba6abd173b7e2d1e9056cfc9df450
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SHA256
5d44a39d75d30a0843b62c24acf87e2d75e300cefdf9ced7ffb2cca02fa4f32c
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SHA512
c3501854f09c1a644c0f5af8f48dfe952a1fec354140213b97b2ced0a65ecdffddce987c24111298e9cd11f0d71c7406f9d89492c5c40298044d6ddee66e6830
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SSDEEP
3072:ekX6PzJhK/XazrKZ5FdFeylCSRri8rWb:zqPzJhOXOeZjd90Shi8r
Malware Config
Signatures
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tregain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Products\\WinDecode.exe" 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.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.
flow ioc 25 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4540 set thread context of 808 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe 85 -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 808 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe Token: SeDebugPrivilege 808 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 808 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4540 wrote to memory of 808 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe 85 PID 4540 wrote to memory of 808 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe 85 PID 4540 wrote to memory of 808 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe 85 PID 4540 wrote to memory of 808 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe 85 PID 4540 wrote to memory of 808 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe 85 PID 4540 wrote to memory of 808 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe 85 PID 4540 wrote to memory of 808 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe 85 PID 4540 wrote to memory of 808 4540 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe 85 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4540 -
C:\Users\Admin\AppData\Local\Temp\7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:808
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\7331eab5ec14421887055a48dfc366eb_JaffaCakes118.exe.log
Filesize313B
MD5181f8ee43a58681f752dbbd9784192b2
SHA10f8f8bf12da0aba71899eb027d20c374d3c863af
SHA256b87a19bc9d31616efc3ee1b3a5f8db72888ec82a9fd9cdc3b5d642f1de345e77
SHA51242f7d9a88f003a3f6629648c120db7600dbd175c4b1bdb0240f6e76619566177c7a750a89ae38c97d746f13ee4bc5a6b39b7ab7f6d78fa4567e4a0b6b1a7f88d