Analysis
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max time kernel
146s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
23/03/2024, 09:56
Static task
static1
Behavioral task
behavioral1
Sample
c0936b0b60581abf999cb8db58c887d6.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
c0936b0b60581abf999cb8db58c887d6.exe
Resource
win10v2004-20240226-en
General
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Target
c0936b0b60581abf999cb8db58c887d6.exe
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Size
2.0MB
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MD5
c0936b0b60581abf999cb8db58c887d6
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SHA1
b6817af3e994b051935cfa2bdb7de674c5f7f949
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SHA256
b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e
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SHA512
117d8f65c863db9c6514d17fff354a65c1faaee582fe630fb7713ae7f9cbc969013f0c17fe01fc763f0f42b3f090021fdca16672cde26a17038ba1b36584e094
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SSDEEP
49152:32mReh8xhZ4DirVux6pKP79FS+iZM95cALWatNiCtQUOK+oR98:mmQab4Dq84oR0+4MQGHcWQqHR6
Malware Config
Extracted
socks5systemz
http://ezunubz.ua/search/?q=67e28dd86f5af1211209a81b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978f071ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c8e89d993f
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral2/memory/116-75-0x0000000000780000-0x0000000000822000-memory.dmp family_socks5systemz behavioral2/memory/116-85-0x0000000000780000-0x0000000000822000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 228 c0936b0b60581abf999cb8db58c887d6.tmp 2936 markdownpad32.exe 116 markdownpad32.exe -
Loads dropped DLL 3 IoCs
pid Process 228 c0936b0b60581abf999cb8db58c887d6.tmp 228 c0936b0b60581abf999cb8db58c887d6.tmp 228 c0936b0b60581abf999cb8db58c887d6.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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 WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1016 wrote to memory of 228 1016 c0936b0b60581abf999cb8db58c887d6.exe 88 PID 1016 wrote to memory of 228 1016 c0936b0b60581abf999cb8db58c887d6.exe 88 PID 1016 wrote to memory of 228 1016 c0936b0b60581abf999cb8db58c887d6.exe 88 PID 228 wrote to memory of 2936 228 c0936b0b60581abf999cb8db58c887d6.tmp 92 PID 228 wrote to memory of 2936 228 c0936b0b60581abf999cb8db58c887d6.tmp 92 PID 228 wrote to memory of 2936 228 c0936b0b60581abf999cb8db58c887d6.tmp 92 PID 228 wrote to memory of 116 228 c0936b0b60581abf999cb8db58c887d6.tmp 93 PID 228 wrote to memory of 116 228 c0936b0b60581abf999cb8db58c887d6.tmp 93 PID 228 wrote to memory of 116 228 c0936b0b60581abf999cb8db58c887d6.tmp 93
Processes
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C:\Users\Admin\AppData\Local\Temp\c0936b0b60581abf999cb8db58c887d6.exe"C:\Users\Admin\AppData\Local\Temp\c0936b0b60581abf999cb8db58c887d6.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1016 -
C:\Users\Admin\AppData\Local\Temp\is-3BKA7.tmp\c0936b0b60581abf999cb8db58c887d6.tmp"C:\Users\Admin\AppData\Local\Temp\is-3BKA7.tmp\c0936b0b60581abf999cb8db58c887d6.tmp" /SL5="$C0042,1722205,54272,C:\Users\Admin\AppData\Local\Temp\c0936b0b60581abf999cb8db58c887d6.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:228 -
C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -i3⤵
- Executes dropped EXE
PID:2936
-
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C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -s3⤵
- Executes dropped EXE
PID:116
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5e1377c17e6c6bf04ead10fc76a847e2a
SHA11963ab0f5faca44637fd0fe8b1041c763bceebb1
SHA256a52e5779bec20092f903389069e5ba5c6060987e255b203b6b0d9d5ac791296b
SHA5129bc7d2fac768d4472b0629ae6ed308663b9902a486a9022f1f3a6c4bc09793c639a8e51968baf07d835592e156adbecee6bd705b1289dd0885c1665c761d8808
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Filesize
277KB
MD5cf521d6cec429bc5440bd452dbaa6272
SHA1516ebc18237b64f2477e9eff0be9d7d0389dc14c
SHA25669166fa5e72399bdd0cf2722edc536603d82760013ce94820d217b20d811e7ee
SHA51218231726f2cbf6a4291e6b052daf0456b33ec7ac0e5e878d0e11208b581591b750f66d0e9a99676c811abf9513a844ba70757ea89675ad3adab4e009a690e399
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Filesize
677KB
MD588d7ea648defbc2597fa38ef83112eda
SHA12bce9acfb1b5e08dc29c695eff12fc80949c6440
SHA2565a53b8bd78b1bbf24136b4d8d8191f503abcc24934626ed6f15bf9f6dee17b68
SHA512050ce971e1f7a4e92d272c9c3c9f96f1214286523b018a75084c76dbebb5f32a717afbd9af9c68b7ad71f738c0a331640a8fe765cb4def90678eae4769b2e66a
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
32KB
MD5b6f11a0ab7715f570f45900a1fe84732
SHA177b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA51278a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771