Analysis
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max time kernel
145s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
14-06-2024 00:28
Static task
static1
Behavioral task
behavioral1
Sample
1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe
Resource
win11-20240611-en
General
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Target
1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe
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Size
5.0MB
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MD5
b30b079ded3148b24262c8b0879384f1
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SHA1
55d37afa252b5c31cc70a44cce12aba262668870
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SHA256
1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934
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SHA512
dedb460604dc495ae72abdc7e54d8778ccffb1b859b560ef3914f66fc49a760adaa9cd9e0bd2f4fcb13a443283a328d0731953511850b2bbe729a22085a3b12a
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SSDEEP
98304:m1RAEwe9OKinxJz0XBQs55tnz1Fp5rXehu5CIoKkQKtAXVHkqoFeuZ7MRiee:a3Z9OKi70XSstzjp5rX04CI9+yVHkqo3
Malware Config
Extracted
socks5systemz
ddflbtf.info
http://ddflbtf.info/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff712c2eb9c9338
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2736-86-0x0000000002550000-0x00000000025F2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exepid process 856 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp 3112 moonvoiceassist32_64.exe 2736 moonvoiceassist32_64.exe -
Loads dropped DLL 1 IoCs
Processes:
1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmppid process 856 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.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 152.89.198.214 -
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:
1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmppid process 856 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmpdescription pid process target process PID 2104 wrote to memory of 856 2104 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp PID 2104 wrote to memory of 856 2104 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp PID 2104 wrote to memory of 856 2104 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp PID 856 wrote to memory of 3112 856 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp moonvoiceassist32_64.exe PID 856 wrote to memory of 3112 856 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp moonvoiceassist32_64.exe PID 856 wrote to memory of 3112 856 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp moonvoiceassist32_64.exe PID 856 wrote to memory of 2736 856 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp moonvoiceassist32_64.exe PID 856 wrote to memory of 2736 856 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp moonvoiceassist32_64.exe PID 856 wrote to memory of 2736 856 1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp moonvoiceassist32_64.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe"C:\Users\Admin\AppData\Local\Temp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2104 -
C:\Users\Admin\AppData\Local\Temp\is-5RDJ6.tmp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp"C:\Users\Admin\AppData\Local\Temp\is-5RDJ6.tmp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmp" /SL5="$7022E,4984957,54272,C:\Users\Admin\AppData\Local\Temp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:856 -
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:3112 -
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:2736
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
MD519056d99baa26a2706aaedda68251006
SHA1b958a568f35633d898bf85ad3e2b3ca3fc17f114
SHA256af22e00ff69fe818b024d6048ef0758d5c0feeebf4d22da203ca57b525b25f45
SHA5122a2180ea488e187b9d9ba5ff0785bc8851d477d34c4cc46a1c229a4fd667e0b3e5a33c5e9713047bc344ca8be17110b6b8c4803b72f2936d4ea373e8c34b08b8
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C:\Users\Admin\AppData\Local\Temp\is-2G5QC.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-5RDJ6.tmp\1d1b76993870d350f4b3333c7940ce3808dd1b02919cb69ddbb498dfaee44934.tmpFilesize
680KB
MD5895d982b558dbe81e0d8d31e818f766e
SHA127d9e61b8edaf48db4c519be05f0f4ea33900a7a
SHA2563c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb
SHA5124ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97
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memory/856-7-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/856-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2104-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2104-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/2104-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/2736-97-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-83-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-68-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-116-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-113-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-71-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-74-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-77-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-80-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-109-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-86-0x0000000002550000-0x00000000025F2000-memory.dmpFilesize
648KB
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memory/2736-89-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-94-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-106-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-100-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/2736-103-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/3112-59-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/3112-65-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/3112-60-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB
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memory/3112-63-0x0000000000400000-0x0000000000720000-memory.dmpFilesize
3.1MB