Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    24-06-2024 21:41

General

  • Target

    6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe

  • Size

    4.8MB

  • MD5

    34c4a0b06aa72ccb3143dff821459260

  • SHA1

    b75883d4c3b92fecc202a5224cc5446955be9644

  • SHA256

    6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc

  • SHA512

    58ced0062e6641314969703da8f9b73d9d86fa7e5df29aa63f4bd6eb94dbb6ffc5dd591c990b058a5a92cba2df03b7476c065587d59f25d764988fc09af65396

  • SSDEEP

    98304:mv+9T1xVKClepH51/vA7n2CPuj0lptRDufV9OTp+UYG:n9TlKKWKQypTDufV99G

Malware Config

Extracted

Family

socks5systemz

C2

beypedd.com

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe
    "C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3748
    • C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp" /SL5="$40242,4756447,54272,C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4488
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2960
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-6DHJ3.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp

    Filesize

    680KB

    MD5

    76649baf78b2e05aaf1db607622a0d95

    SHA1

    52a006df873b8e8157bbd3aa865bfca236cf4efa

    SHA256

    9294c66ed302966140cb0cc55793e23ef45486a1973a4a5118cdbb7e872bc096

    SHA512

    22f9b42eee768ebc0d13cb22d72c2afb3e8da63577cdc5cf2fc680c2dd8a77e2563ee499abe553fa2f13aa7cb338e407c9d4e05938a2794b992e0249af97d2f4

  • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

    Filesize

    2.8MB

    MD5

    7badf5cbed2893d354ac41ef048803b6

    SHA1

    70211ffdd2d167207846f17b5b58645c8137d07b

    SHA256

    194f6c147b54accfa1ff74099028bfaf065cdefbf1f7136fbe6f53546942f80a

    SHA512

    325edf1fd58f00d26b225310bd4745795757774a3924bd4cd299552d6d2ea47de99573eb962ac7943813e36f0d8fca4f86291063987113bae272506b2c02ad4a

  • memory/1992-97-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-100-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-115-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-112-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-109-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-68-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-106-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-103-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-94-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-89-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-71-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-74-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-77-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-80-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-83-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1992-84-0x0000000000A00000-0x0000000000AA2000-memory.dmp

    Filesize

    648KB

  • memory/2960-63-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2960-65-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2960-60-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2960-59-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/3748-69-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3748-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3748-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4488-70-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4488-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB