Analysis
- max time kernel
143s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
07/04/2024, 19:00
General
- Target VI3 Operation Guide_tech Info versionfdp.exe
- Size 2.1MB
- Sample240407-xnl8bsbf21
- SHA256 ad6e0e24c2791245c085cb50b3722dbad5fc6bc40129e74780dc996d2984317c
Malware Config
Extracted
-
lumma
-
https://appliedgrandyjuiw.shop/api
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https://birdpenallitysydw.shop/api
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https://cinemaclinicttanwk.shop/api
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https://disagreemenywyws.shop/api
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https://speedparticipatewo.shop/api
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https://fixturewordbakewos.shop/api
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https://colorprioritytubbew.shop/api
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https://abuselinenaidwjuew.shop/api
-
https://methodgreenglassdatw.shop/api
Signatures
- Lumma Stealer
An infostealer written in C++ first seen in August 2022.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- 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
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\VI3 Operation Guide_tech Info versionfdp.exe"C:\Users\Admin\AppData\Local\Temp\VI3 Operation Guide_tech Info versionfdp.exe"1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Users\Admin\AppData\Local\Temp\upd.exe"C:\Users\Admin\AppData\Local\Temp\upd.exe"2⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 532 -s 12323⤵
- Program crash
-
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 532 -ip 5321⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
upd.exe
memory/532-30-0x0000000004810000-0x0000000004856000-memory.dmp
memory/532-28-0x0000000000400000-0x0000000002B8D000-memory.dmp
memory/532-25-0x0000000002EF0000-0x0000000002EF1000-memory.dmp
memory/532-26-0x0000000002EF0000-0x0000000002EF1000-memory.dmp
memory/532-23-0x0000000002EF0000-0x0000000002EF1000-memory.dmp
memory/532-24-0x0000000002EF0000-0x0000000002EF1000-memory.dmp
memory/532-22-0x0000000004810000-0x0000000004856000-memory.dmp
memory/532-21-0x0000000002F70000-0x0000000003070000-memory.dmp
memory/1724-5-0x0000000004990000-0x00000000049A0000-memory.dmp
memory/1724-10-0x0000000006890000-0x00000000068E0000-memory.dmp
memory/1724-9-0x0000000006690000-0x000000000669A000-memory.dmp
memory/1724-20-0x0000000004990000-0x00000000049A0000-memory.dmp
memory/1724-8-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/1724-7-0x0000000005640000-0x00000000056A6000-memory.dmp
memory/1724-6-0x0000000004AE0000-0x0000000004AF8000-memory.dmp
memory/1724-0-0x0000000000100000-0x0000000000160000-memory.dmp
memory/1724-4-0x0000000004B00000-0x0000000004B9C000-memory.dmp
memory/1724-3-0x00000000049C0000-0x0000000004A52000-memory.dmp
memory/1724-27-0x0000000006500000-0x000000000650A000-memory.dmp
memory/1724-2-0x0000000004EC0000-0x0000000005464000-memory.dmp
memory/1724-1-0x0000000074FE0000-0x0000000075790000-memory.dmp