Analysis
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max time kernel
147s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
14-06-2024 12:33
Static task
static1
Behavioral task
behavioral1
Sample
4fa524896f7acb979cb8900b03479272.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
4fa524896f7acb979cb8900b03479272.exe
Resource
win10v2004-20240508-en
General
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Target
4fa524896f7acb979cb8900b03479272.exe
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Size
5.0MB
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MD5
4fa524896f7acb979cb8900b03479272
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SHA1
d051e47915937d64fb6fcd4a3640c345ad892a18
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SHA256
7f2e61445c1de7e7f873e136d65e79c54aef5c91fc9239286d198162779312d0
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SHA512
8ff818f1a2a3f149bc93d1ba6998a32e3985f1c0bc5ef9f60b2b19ee346982c85ec895db0e9195dd00635d5ce61d9de33e6b896d4ca7e0eab02be6e23b39743d
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SSDEEP
98304:m+29v/40m11zG86IPCx1aB1XGLIxbPvEeQ2bwRwgJbwqaHoyMf3j3RDRe:bSv/4l1pz6laBYIJnPsag+qaHoFRD0
Malware Config
Extracted
socks5systemz
bhnngvp.com
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2000-83-0x0000000000B40000-0x0000000000BE2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
4fa524896f7acb979cb8900b03479272.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exepid process 4680 4fa524896f7acb979cb8900b03479272.tmp 2696 moonvoiceassist32_64.exe 2000 moonvoiceassist32_64.exe -
Loads dropped DLL 1 IoCs
Processes:
4fa524896f7acb979cb8900b03479272.tmppid process 4680 4fa524896f7acb979cb8900b03479272.tmp -
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 152.89.198.214 Destination IP 45.155.250.90 Destination IP 91.211.247.248 -
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:
4fa524896f7acb979cb8900b03479272.tmppid process 4680 4fa524896f7acb979cb8900b03479272.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
4fa524896f7acb979cb8900b03479272.exe4fa524896f7acb979cb8900b03479272.tmpdescription pid process target process PID 4532 wrote to memory of 4680 4532 4fa524896f7acb979cb8900b03479272.exe 4fa524896f7acb979cb8900b03479272.tmp PID 4532 wrote to memory of 4680 4532 4fa524896f7acb979cb8900b03479272.exe 4fa524896f7acb979cb8900b03479272.tmp PID 4532 wrote to memory of 4680 4532 4fa524896f7acb979cb8900b03479272.exe 4fa524896f7acb979cb8900b03479272.tmp PID 4680 wrote to memory of 2696 4680 4fa524896f7acb979cb8900b03479272.tmp moonvoiceassist32_64.exe PID 4680 wrote to memory of 2696 4680 4fa524896f7acb979cb8900b03479272.tmp moonvoiceassist32_64.exe PID 4680 wrote to memory of 2696 4680 4fa524896f7acb979cb8900b03479272.tmp moonvoiceassist32_64.exe PID 4680 wrote to memory of 2000 4680 4fa524896f7acb979cb8900b03479272.tmp moonvoiceassist32_64.exe PID 4680 wrote to memory of 2000 4680 4fa524896f7acb979cb8900b03479272.tmp moonvoiceassist32_64.exe PID 4680 wrote to memory of 2000 4680 4fa524896f7acb979cb8900b03479272.tmp moonvoiceassist32_64.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4fa524896f7acb979cb8900b03479272.exe"C:\Users\Admin\AppData\Local\Temp\4fa524896f7acb979cb8900b03479272.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-M2RU7.tmp\4fa524896f7acb979cb8900b03479272.tmp"C:\Users\Admin\AppData\Local\Temp\is-M2RU7.tmp\4fa524896f7acb979cb8900b03479272.tmp" /SL5="$100048,4971959,54272,C:\Users\Admin\AppData\Local\Temp\4fa524896f7acb979cb8900b03479272.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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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
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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
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exeFilesize
3.1MB
MD5162b05f5a6cb1ba1635307f8025f89d1
SHA17c6c563214236b3deb4d91727fad77d78dfd4a31
SHA256500214d4ab1b337d579fe97da371ca3857684f096655db6b9409c4be8d3e61c6
SHA5126ab7a6733dc341efc29afd2b300b60973747a2c98be324edeaa3a62bc6a9a68f8525fd58e99e0c6bec410ee57ac4384283a7ce108a2dd147b8f3db764b2a0529
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C:\Users\Admin\AppData\Local\Temp\is-INK5D.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-M2RU7.tmp\4fa524896f7acb979cb8900b03479272.tmpFilesize
680KB
MD5895d982b558dbe81e0d8d31e818f766e
SHA127d9e61b8edaf48db4c519be05f0f4ea33900a7a
SHA2563c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb
SHA5124ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97
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memory/2000-95-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-98-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-113-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-110-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-107-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-104-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-67-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-101-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-92-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-87-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-70-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-73-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-76-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-79-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-82-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2000-83-0x0000000000B40000-0x0000000000BE2000-memory.dmpFilesize
648KB
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memory/2696-63-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2696-64-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2696-60-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/2696-59-0x0000000000400000-0x0000000000721000-memory.dmpFilesize
3.1MB
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memory/4532-68-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4532-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4532-3-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/4680-69-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4680-7-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB