Analysis
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max time kernel
147s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
14-06-2024 04:34
Static task
static1
Behavioral task
behavioral1
Sample
abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe
Resource
win11-20240419-en
General
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Target
abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe
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Size
4.8MB
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MD5
5becf01c4117b3ef5f9dc2b300d1a6cd
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SHA1
9cf9f489d76b68390eaa3abdcc8b5fc3aa780fab
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SHA256
abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d
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SHA512
5306b924d73146a9be69303cf6bce7620365d87922223dec1eb2df61cd53abe78ecb00de11d45336e18df391c018caa195a7831f3c4de31bc7e3f952437294eb
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SSDEEP
98304:m1MzvAmHb2DjMwHPuMacnSQii4FUMITFB0p8yqovQN33SkkQh:Qtm721vZSQixjIkqooN35r
Malware Config
Extracted
socks5systemz
ayjomei.ru
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2628-86-0x0000000000A90000-0x0000000000B32000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmpm4atomp3freeconverter.exem4atomp3freeconverter.exepid process 1936 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp 452 m4atomp3freeconverter.exe 2628 m4atomp3freeconverter.exe -
Loads dropped DLL 1 IoCs
Processes:
abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmppid process 1936 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.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 45.155.250.90 Destination IP 152.89.198.214 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:
abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmppid process 1936 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exeabd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmpdescription pid process target process PID 3220 wrote to memory of 1936 3220 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp PID 3220 wrote to memory of 1936 3220 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp PID 3220 wrote to memory of 1936 3220 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp PID 1936 wrote to memory of 452 1936 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 452 1936 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 452 1936 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 2628 1936 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 2628 1936 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp m4atomp3freeconverter.exe PID 1936 wrote to memory of 2628 1936 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp m4atomp3freeconverter.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe"C:\Users\Admin\AppData\Local\Temp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3220 -
C:\Users\Admin\AppData\Local\Temp\is-R6QMM.tmp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp"C:\Users\Admin\AppData\Local\Temp\is-R6QMM.tmp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp" /SL5="$40214,4789193,54272,C:\Users\Admin\AppData\Local\Temp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -i3⤵
- Executes dropped EXE
PID:452 -
C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -s3⤵
- Executes dropped EXE
PID:2628
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exeFilesize
2.9MB
MD55f6bf192e098a390da1debc6b3fcd89a
SHA1909cc1ea2cde20961759e7816391bc675d88f506
SHA25648fbe9f34785a6a4538d4db3f74826a21055af69fa04f434f6888f0dde1c4ab0
SHA512737cc0ed16ca878b5b65560723f7ca1f4d79abb90d9b403d8ebb887975f1795a2152c3c9334c098d495e03e31eea56ec74ff17f8f4bdb641af28abd358ac7311
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C:\Users\Admin\AppData\Local\Temp\is-7L6HQ.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-R6QMM.tmp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmpFilesize
680KB
MD5dafff71ba13e58daac2c21ed0ed54458
SHA1ec169d6088ee3a539030ef630164dae1dd7d9a80
SHA256167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb
SHA512ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719
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memory/452-65-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/452-59-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/452-60-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/452-63-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/1936-70-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/1936-16-0x0000000000400000-0x00000000004BA000-memory.dmpFilesize
744KB
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memory/2628-74-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-100-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-115-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-112-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-71-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-109-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-77-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-80-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-83-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-86-0x0000000000A90000-0x0000000000B32000-memory.dmpFilesize
648KB
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memory/2628-89-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-94-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-97-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-68-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-103-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/2628-106-0x0000000000400000-0x00000000006EE000-memory.dmpFilesize
2.9MB
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memory/3220-0-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/3220-2-0x0000000000401000-0x000000000040B000-memory.dmpFilesize
40KB
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memory/3220-69-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB