Analysis
- max time kernel
151s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
23/03/2024, 08:36
General
- Target 0574b31aca7165d0a8ba6ed16e0c8224.exe
- Size 2.0MB
- Sample240323-khkfbshe91
- SHA256 41105bfdb5af989cd5d636fcb77ef49f97d25d525aa2bdc35d95e1b0a46e8b60
Malware Config
Extracted
-
socks5systemz
-
http://bbeoudk.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c8ec959e3f
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 IoCs
- Unexpected DNS network traffic destination 1 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\0574b31aca7165d0a8ba6ed16e0c8224.exe"C:\Users\Admin\AppData\Local\Temp\0574b31aca7165d0a8ba6ed16e0c8224.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-AKV6H.tmp\0574b31aca7165d0a8ba6ed16e0c8224.tmp"C:\Users\Admin\AppData\Local\Temp\is-AKV6H.tmp\0574b31aca7165d0a8ba6ed16e0c8224.tmp" /SL5="$70214,1711334,54272,C:\Users\Admin\AppData\Local\Temp\0574b31aca7165d0a8ba6ed16e0c8224.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -s3⤵
- Executes dropped EXE
-
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4472 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
markdownpad32.exe
0574b31aca7165d0a8ba6ed16e0c8224.tmp
_iscrypt.dll
_isdecmp.dll
memory/2604-50-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2604-46-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2604-45-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-75-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-68-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-102-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-98-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-95-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-54-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-57-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-92-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-61-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-62-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-65-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-89-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-71-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-74-0x00000000008B0000-0x0000000000952000-memory.dmp
memory/2768-86-0x00000000008B0000-0x0000000000952000-memory.dmp
memory/2768-77-0x00000000008B0000-0x0000000000952000-memory.dmp
memory/2768-82-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2768-85-0x0000000000400000-0x00000000005D5000-memory.dmp
memory/2960-58-0x0000000002340000-0x0000000002341000-memory.dmp
memory/2960-47-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/2960-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/3616-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3616-23-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3616-2-0x0000000000400000-0x0000000000414000-memory.dmp