Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
22/09/2026, 00:58
General
- Target jaffacakes118_766d6e1f91b4ddf8a681650840aa2071d923d24dec862e12ad82eafe5c9d55a2.exe
- Size 4.0MB
- Sample260922-bb2atsvbrg
- SHA256 766d6e1f91b4ddf8a681650840aa2071d923d24dec862e12ad82eafe5c9d55a2
Malware Config
Extracted
-
socks5systemz
-
51.159.66.125
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217.23.6.51
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151.80.38.159
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217.23.9.168
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37.187.122.227
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rc4_key
heyfg645fdhwi
Signatures
- Family: Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Detect Socks5Systemz Payload 1 IoCs
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 28 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_766d6e1f91b4ddf8a681650840aa2071d923d24dec862e12ad82eafe5c9d55a2.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_766d6e1f91b4ddf8a681650840aa2071d923d24dec862e12ad82eafe5c9d55a2.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-MAD7L.tmp\is-7L4OE.tmp"C:\Users\Admin\AppData\Local\Temp\is-MAD7L.tmp\is-7L4OE.tmp" /SL4 $50042 "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_766d6e1f91b4ddf8a681650840aa2071d923d24dec862e12ad82eafe5c9d55a2.exe" 3873815 2447362⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
- System Location Discovery: System Language Discovery
-
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C:\Program Files (x86)\ImapRebex\ImapRebex.exe"C:\Program Files (x86)\ImapRebex\ImapRebex.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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C:\Program Files (x86)\ImapRebex\ImapRebex.exe"C:\Program Files (x86)\ImapRebex\ImapRebex.exe" -s3⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- System Location Discovery: System Language Discovery
-
-
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C:\ProgramData\Movie Archive\Movie Archive.exe"C:\ProgramData\Movie Archive\Movie Archive.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
ImapRebex.exe
is-7L4OE.tmp
_iscrypt.dll
memory/4432-73-0x0000000000400000-0x0000000000608000-memory.dmp
memory/4432-76-0x0000000000400000-0x0000000000608000-memory.dmp
memory/4432-78-0x0000000000400000-0x0000000000608000-memory.dmp
memory/4432-75-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-88-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-115-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-130-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-127-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-124-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-121-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-118-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-112-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-92-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-95-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-98-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-101-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-104-0x0000000002B10000-0x0000000002BBA000-memory.dmp
memory/5372-106-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5372-109-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5620-9-0x0000000000400000-0x00000000004CF000-memory.dmp
memory/5620-85-0x0000000000400000-0x00000000004CF000-memory.dmp
memory/5620-8-0x0000000000400000-0x00000000004CF000-memory.dmp
memory/5752-84-0x0000000000400000-0x0000000000608000-memory.dmp
memory/5800-0-0x000000000040C000-0x000000000040D000-memory.dmp
memory/5800-86-0x0000000000400000-0x0000000000442000-memory.dmp
memory/5800-1-0x0000000000400000-0x0000000000442000-memory.dmp