Analysis
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max time kernel
142s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-06-2024 13:38
Static task
static1
Behavioral task
behavioral1
Sample
6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe
Resource
win11-20240611-en
General
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Target
6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe
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Size
5.1MB
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MD5
101f00585e773ec198e3e0721f0d582d
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SHA1
c1ca25c1f6e709f61596d2be1843a629b171dd59
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SHA256
6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be
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SHA512
15c06517403fd1d492b40f3c8a60c392dc6a6087e8b9610e022906b977dc45b9087ed3e7b2091ff8522b766c9f441da2797bb70fb7942400f699a9717402c556
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SSDEEP
98304:mkwXtlj7PeddJb7xJvyRgG6P7rTpc91us3KLCZTf9X8oK878t:2Laddz1ymG6P7rtcCSKLCZD93C
Malware Config
Extracted
socks5systemz
bexkfii.com
http://bexkfii.com/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff612c2ed92923a
http://bexkfii.com/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12eab517aa5c96bd86ef9c804c895a8bbc896c58e713bc90c91d36b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9c9939cf689e17
Signatures
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Detect Socks5Systemz Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/4036-84-0x00000000009C0000-0x0000000000A62000-memory.dmp family_socks5systemz behavioral1/memory/4036-107-0x00000000009C0000-0x0000000000A62000-memory.dmp family_socks5systemz behavioral1/memory/4036-108-0x00000000009C0000-0x0000000000A62000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmpmp3ripfreeedition32.exemp3ripfreeedition32.exepid process 4584 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp 4100 mp3ripfreeedition32.exe 4036 mp3ripfreeedition32.exe -
Loads dropped DLL 1 IoCs
Processes:
6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmppid process 4584 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.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:
6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmppid process 4584 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmpdescription pid process target process PID 2700 wrote to memory of 4584 2700 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp PID 2700 wrote to memory of 4584 2700 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp PID 2700 wrote to memory of 4584 2700 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp PID 4584 wrote to memory of 4100 4584 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp mp3ripfreeedition32.exe PID 4584 wrote to memory of 4100 4584 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp mp3ripfreeedition32.exe PID 4584 wrote to memory of 4100 4584 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp mp3ripfreeedition32.exe PID 4584 wrote to memory of 4036 4584 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp mp3ripfreeedition32.exe PID 4584 wrote to memory of 4036 4584 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp mp3ripfreeedition32.exe PID 4584 wrote to memory of 4036 4584 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp mp3ripfreeedition32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe"C:\Users\Admin\AppData\Local\Temp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2700 -
C:\Users\Admin\AppData\Local\Temp\is-CQH73.tmp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp"C:\Users\Admin\AppData\Local\Temp\is-CQH73.tmp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp" /SL5="$6011C,5052624,54272,C:\Users\Admin\AppData\Local\Temp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4584 -
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -i3⤵
- Executes dropped EXE
PID:4100
-
-
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -s3⤵
- Executes dropped EXE
PID:4036
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD59e75cd003585ff2f172a841d41ed6d75
SHA19d551f43cfeb84d1a585d53d2bdde8e17be436bc
SHA256c576f2f3581928de1e62be3e4efff1b5c5415e89c3bdc0cd5536ce41a781c370
SHA512817c32c8943325d27723274425c4fa5c3fb7f36c52a2c85f8038e956033edf96b5d9340df3238865b706fffd8094b1ba3e940bcc17e2feae24d1b15fe2fac67c
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C:\Users\Admin\AppData\Local\Temp\is-CQH73.tmp\6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be.tmp
Filesize680KB
MD59a46eeaa9fb1370478ba7108b30aab2b
SHA1045f0a44dd0f4710013a390da2865a2fac04389e
SHA25671693251b98a555e6e01fcabf559218ad137f5de772218631147c3d87fc31820
SHA51289ee61a63303ee11d77596e80e0abec6ede6c1fbba1b6bc6ee50991da335426b4fb0cc7d7a90c3c33d56dda222592a3090e771b9fcaef2f6e5951b78467fef66
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63