Analysis
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max time kernel
142s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
30-05-2024 11:11
Static task
static1
Behavioral task
behavioral1
Sample
c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe
Resource
win10v2004-20240508-en
General
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Target
c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe
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Size
4.8MB
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MD5
ccaabc1da8b300711446793ca2df28b7
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SHA1
e1f4b0715b5a73225a97ad0d96210127dbafe188
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SHA256
c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c
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SHA512
d48f2b7d875607b8f12ebaf797f06bbc0ee0df3108548312a9cb640af6641a7afd2af92b06459016f29920f57af1597f33e0811fa4b7fde39c30bd339f402262
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SSDEEP
98304:m2HXWTA6+amdZofSbfYqez+L+RUYsWu1+8IfUxfQh+v2:v3eFi+S+dfe6l
Malware Config
Signatures
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Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/2444-92-0x0000000002580000-0x0000000002622000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
Processes:
c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp5kplayer.exe5kplayer.exepid process 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 2636 5kplayer.exe 2444 5kplayer.exe -
Loads dropped DLL 5 IoCs
Processes:
c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exec41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmppid process 1936 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.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 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:
c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmppid process 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exec41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmpdescription pid process target process PID 1936 wrote to memory of 3060 1936 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp PID 1936 wrote to memory of 3060 1936 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp PID 1936 wrote to memory of 3060 1936 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp PID 1936 wrote to memory of 3060 1936 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp PID 1936 wrote to memory of 3060 1936 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp PID 1936 wrote to memory of 3060 1936 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp PID 1936 wrote to memory of 3060 1936 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp PID 3060 wrote to memory of 2636 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 5kplayer.exe PID 3060 wrote to memory of 2636 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 5kplayer.exe PID 3060 wrote to memory of 2636 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 5kplayer.exe PID 3060 wrote to memory of 2636 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 5kplayer.exe PID 3060 wrote to memory of 2444 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 5kplayer.exe PID 3060 wrote to memory of 2444 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 5kplayer.exe PID 3060 wrote to memory of 2444 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 5kplayer.exe PID 3060 wrote to memory of 2444 3060 c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp 5kplayer.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe"C:\Users\Admin\AppData\Local\Temp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Users\Admin\AppData\Local\Temp\is-HH0K0.tmp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp"C:\Users\Admin\AppData\Local\Temp\is-HH0K0.tmp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp" /SL5="$4010A,4746797,54272,C:\Users\Admin\AppData\Local\Temp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3060 -
C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe"C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe" -i3⤵
- Executes dropped EXE
PID:2636
-
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C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe"C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe" -s3⤵
- Executes dropped EXE
PID:2444
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.0MB
MD5cb481b3db00e4fc9aa8bdb5e226eb3f3
SHA11648bf6b568339e51bc115e17d72ded18d4afcd1
SHA2567d519edd393df367f6959f30c081e5d1263b6a0455f8e781ecc8a1f3fb6849b0
SHA512b0daf6f2210a51ac26a561da15fab111bfb5f444446310abead8b5cbdd687bc087158305a23eca200f8590a778c744f20503ff320f5852de0e3c932a03d747cd
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Local\Temp\is-HH0K0.tmp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp
Filesize680KB
MD52147d68d1e5f1da63ca70612f4181ce6
SHA1517ecefc93c258b1bc05ee5433e3a328a6f9168a
SHA2563ba1867d2ba6b3db3c6c4c5fa238246fd4351f337c4e167e97eb25e2a5f0b181
SHA512bc4a5e0a2e83e39005b6e3d470681741435a7b06f182162c3a72a96b0f763cb5a80eaad7e936216ac21c00d00b07e429149f0d4e1869868b6e469b1427ed8188