Analysis
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max time kernel
91s -
max time network
92s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
01-04-2024 04:40
Behavioral task
behavioral1
Sample
67f4f989a12849763167b2366c11564c_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
67f4f989a12849763167b2366c11564c_JaffaCakes118.exe
Resource
win10v2004-20240226-en
General
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Target
67f4f989a12849763167b2366c11564c_JaffaCakes118.exe
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Size
434KB
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MD5
67f4f989a12849763167b2366c11564c
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SHA1
9687d2c6d575861bf2cc74ead1099888dfeef111
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SHA256
fe7db020dc9a216c417340950ed826de77d3fe968ab9b16f5ddb98e08dcb0eee
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SHA512
bda0bc9280dda6648cdf6a1e0bce40458749811e330fe3fe4b83c8c42d8c7a8aa4464dd763263a504db5554a3d9275c7d2afda3adf50bd4a621108953c75484f
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SSDEEP
6144:ggPgejLAWGU7NpRJkdlvuGsS5b3PsOVtEB:gXkLAW5PRJ+lHxP3VtK
Malware Config
Extracted
matiex
https://api.telegram.org/bot1988840552:AAHXu6-g6KC03PLWanCzw1bVE3etgHR-Wnc/sendMessage?chat_id=2033777723
Signatures
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Matiex Main payload 1 IoCs
resource yara_rule behavioral2/memory/1892-0-0x0000000000890000-0x0000000000902000-memory.dmp family_matiex -
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-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 67f4f989a12849763167b2366c11564c_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 4 checkip.dyndns.org -
Program crash 1 IoCs
pid pid_target Process procid_target 4792 1892 WerFault.exe 84 -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000_Classes\ms-settings\shell\open\command 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe Key created \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000_Classes\ms-settings 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe Key created \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000_Classes\ms-settings\shell 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe Key created \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000_Classes\ms-settings\shell\open 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000_Classes\ms-settings\shell\open\command\ 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1892 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 67f4f989a12849763167b2366c11564c_JaffaCakes118.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\67f4f989a12849763167b2366c11564c_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\67f4f989a12849763167b2366c11564c_JaffaCakes118.exe"1⤵
- Accesses Microsoft Outlook profiles
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1892 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 21842⤵
- Program crash
PID:4792
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1892 -ip 18921⤵PID:3552