Analysis
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max time kernel
292s -
max time network
298s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
13-06-2024 23:51
Static task
static1
Behavioral task
behavioral1
Sample
a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe
Resource
win10-20240404-en
General
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Target
a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe
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Size
5.0MB
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MD5
625d7a7df7da834917c9ff4fda2b072c
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SHA1
a1b24e2455e4b41775c8d15cdc9ea83fdf4c59db
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SHA256
a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47
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SHA512
701dd59a7d49ff480d688d4cdfc8188de5562de0a3bd47233d1e8a753cdb527905fea2e1d0df3435f558c6b919aa68e77fc7c3324654ae039b6aa45d16fed5b9
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SSDEEP
98304:mmm+YCvQZ96G+QmV/pqfKhk7MasvtbHtkBw3f6PYDTU8o8BQzyVfOrE2vSle:dYCv4MfVoIk7Masvt4wCYDDoGWSA
Malware Config
Extracted
socks5systemz
bncarxz.com
http://bncarxz.com/search/?q=67e28dd8655bf57a4609f84c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c2ed929d3e
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4044-82-0x00000000028D0000-0x0000000002972000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exepid process 2236 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp 5112 moonvoiceassist32_64.exe 4044 moonvoiceassist32_64.exe -
Loads dropped DLL 1 IoCs
Processes:
a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmppid process 2236 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 141.98.234.31 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmppid process 2236 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exea8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmpdescription pid process target process PID 1480 wrote to memory of 2236 1480 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp PID 1480 wrote to memory of 2236 1480 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp PID 1480 wrote to memory of 2236 1480 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp PID 2236 wrote to memory of 5112 2236 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp moonvoiceassist32_64.exe PID 2236 wrote to memory of 5112 2236 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp moonvoiceassist32_64.exe PID 2236 wrote to memory of 5112 2236 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp moonvoiceassist32_64.exe PID 2236 wrote to memory of 4044 2236 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp moonvoiceassist32_64.exe PID 2236 wrote to memory of 4044 2236 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp moonvoiceassist32_64.exe PID 2236 wrote to memory of 4044 2236 a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp moonvoiceassist32_64.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe"C:\Users\Admin\AppData\Local\Temp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1480 -
C:\Users\Admin\AppData\Local\Temp\is-C9G9P.tmp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp"C:\Users\Admin\AppData\Local\Temp\is-C9G9P.tmp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmp" /SL5="$A01D4,4960850,54272,C:\Users\Admin\AppData\Local\Temp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2236 -
C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -i3⤵
- Executes dropped EXE
PID:5112 -
C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -s3⤵
- Executes dropped EXE
PID:4044
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exeFilesize
3.1MB
MD503ac3f038f52abf9466e523422975a72
SHA17b2e8607b4146c99ca42338f1dc5fd8b3b64a400
SHA25699089239e81bb6bf90e64eb24be607e618e62c5d56aba974608d1e721a1256c9
SHA51216e2ae19b75d47b2dd30899a947aa7bd7ef2d039897aa3db4bcee868c7824c3d936dc16575a733b80b1c8024ce8eddd27e04b32066fa2c0e3eb45c03f7c84f0d
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C:\Users\Admin\AppData\Local\Temp\is-C9G9P.tmp\a8a4138f5e7404a3c1e42b9b969650c2e92636fdb5aaa8504f05e6c6bcf98d47.tmpFilesize
680KB
MD5895d982b558dbe81e0d8d31e818f766e
SHA127d9e61b8edaf48db4c519be05f0f4ea33900a7a
SHA2563c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb
SHA5124ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97
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\Users\Admin\AppData\Local\Temp\is-9Q4H6.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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memory/1480-66-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/1480-3-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/1480-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2236-10-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2236-67-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4044-99-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-93-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-126-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-68-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-71-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-74-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-77-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-80-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-82-0x00000000028D0000-0x0000000002972000-memory.dmpFilesize
648KB
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memory/4044-85-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-90-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-123-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-96-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-120-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-102-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-105-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-108-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-111-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-114-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/4044-117-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/5112-59-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/5112-63-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB
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memory/5112-60-0x0000000000400000-0x000000000071F000-memory.dmpFilesize
3.1MB