Analysis
- max time kernel
142s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
13/06/2024, 03:31
General
- Target 73577861a9b34f26ade5d0497167e441.exe
- Size 4.8MB
- Sample240613-d22qdswfkn
- SHA256 f373d88290002bfe725034dcefc96ceaaf02c30f40fb9a65d90b55b32d2cacb6
Malware Config
Extracted
-
socks5systemz
-
bhmxftq.com
-
http://bhmxftq.com/search/?q=67e28dd83f08f52f150eab187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978f471ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff713c4e690993a
-
http://bhmxftq.com/search/?q=67e28dd83f08f52f150eab187c27d78406abdd88be4b12eab517aa5c96bd86e890834e96148ab2865b77f80ebad9c20f7cb63037ed2ab423a4314383ba915d911ec07bb606a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1e7979e32c86c97
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 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 FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\73577861a9b34f26ade5d0497167e441.exe"C:\Users\Admin\AppData\Local\Temp\73577861a9b34f26ade5d0497167e441.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-4VA0Q.tmp\73577861a9b34f26ade5d0497167e441.tmp"C:\Users\Admin\AppData\Local\Temp\is-4VA0Q.tmp\73577861a9b34f26ade5d0497167e441.tmp" /SL5="$100052,4763182,54272,C:\Users\Admin\AppData\Local\Temp\73577861a9b34f26ade5d0497167e441.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -s3⤵
- Executes dropped EXE
-
-
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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 --field-trial-handle=4060,i,3549704109630749084,1975543916261970610,262144 --variations-seed-version --mojo-platform-channel-handle=1440 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
audioconverter.exe
73577861a9b34f26ade5d0497167e441.tmp
_iscrypt.dll
memory/392-60-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/392-64-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/392-63-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/392-59-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-75-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-86-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-115-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-112-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-107-0x00000000028B0000-0x0000000002952000-memory.dmp
memory/4532-69-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-72-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-108-0x00000000028B0000-0x0000000002952000-memory.dmp
memory/4532-78-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-81-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-84-0x00000000028B0000-0x0000000002952000-memory.dmp
memory/4532-106-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-91-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-94-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-97-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-100-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4532-103-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4564-10-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4564-68-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4724-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4724-67-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4724-0-0x0000000000400000-0x0000000000414000-memory.dmp