Analysis
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max time kernel
293s -
max time network
264s -
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 22:47
Static task
static1
Behavioral task
behavioral1
Sample
4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe
Resource
win10-20240404-en
General
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Target
4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe
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Size
5.0MB
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MD5
00b091394d0bf8b043fa79819e41959e
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SHA1
873b2812cc96d7fa5f224c21155c5f91932235d6
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SHA256
4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515
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SHA512
085070dd0d62fccd1a53263ae3203bb1df7ce364d8c84cd3676d7b7a5b0add2f9aaf804093cad897314ffea3f45d750f6dac99319c1538182763f007b6997ad1
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SSDEEP
98304:mUvgXuyRcP2qUqnvAstqBolcm1TT9ug2z844Lc9o760ZpyvcS9zWTt8boj7zUyLm:pAuuejlcMhu0LZ79EZ5g8MjUj
Malware Config
Extracted
socks5systemz
aihuvjd.ru
http://aihuvjd.ru/search/?q=67e28dd8655bf57a4609f84c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c1e79d933e
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/5024-83-0x0000000002560000-0x0000000002602000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exepid process 2432 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp 220 moonvoiceassist32_64.exe 5024 moonvoiceassist32_64.exe -
Loads dropped DLL 1 IoCs
Processes:
4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmppid process 2432 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.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 45.155.250.90 -
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:
4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmppid process 2432 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmpdescription pid process target process PID 4896 wrote to memory of 2432 4896 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp PID 4896 wrote to memory of 2432 4896 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp PID 4896 wrote to memory of 2432 4896 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp PID 2432 wrote to memory of 220 2432 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp moonvoiceassist32_64.exe PID 2432 wrote to memory of 220 2432 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp moonvoiceassist32_64.exe PID 2432 wrote to memory of 220 2432 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp moonvoiceassist32_64.exe PID 2432 wrote to memory of 5024 2432 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp moonvoiceassist32_64.exe PID 2432 wrote to memory of 5024 2432 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp moonvoiceassist32_64.exe PID 2432 wrote to memory of 5024 2432 4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp moonvoiceassist32_64.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe"C:\Users\Admin\AppData\Local\Temp\4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4896 -
C:\Users\Admin\AppData\Local\Temp\is-E73B3.tmp\4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp"C:\Users\Admin\AppData\Local\Temp\is-E73B3.tmp\4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmp" /SL5="$300E0,4959517,54272,C:\Users\Admin\AppData\Local\Temp\4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2432 -
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:220 -
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:5024
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
MD56e254118bd5ac881a5d8fac0ffcf2d6a
SHA1c157041245b2c3db7935ddbfc1e87ec3b0a4908f
SHA2564abdf5712cf7bc67753e27b76e26d121261574ff254d2477a12b30f358d87a86
SHA512c5d11d46113ec596813eb79d1b89f8c28e2edc7a1f69d8897f1cd6a9dd1a9132dcd0b4dd3dc34b1a345fceb43a375f6fc341f23517f660e63a85e16c6e309e7b
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C:\Users\Admin\AppData\Local\Temp\is-E73B3.tmp\4a3deabf92835badcad378bb652b9b983d37146b8c283f2114ae2de92902d515.tmpFilesize
680KB
MD5895d982b558dbe81e0d8d31e818f766e
SHA127d9e61b8edaf48db4c519be05f0f4ea33900a7a
SHA2563c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb
SHA5124ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97
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\Users\Admin\AppData\Local\Temp\is-QTVMA.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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memory/220-59-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/220-60-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/220-63-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/2432-16-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2432-67-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/4896-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4896-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/4896-66-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/5024-77-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-96-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-74-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-68-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-80-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-83-0x0000000002560000-0x0000000002602000-memory.dmpFilesize
648KB
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memory/5024-85-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-90-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-93-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-71-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-99-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-102-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-106-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-109-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-112-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-115-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-118-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-121-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-124-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB
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memory/5024-127-0x0000000000400000-0x000000000071B000-memory.dmpFilesize
3.1MB