Analysis

  • max time kernel
    148s
  • max time network
    151s
  • 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 05:36

General

  • Target

    4376f7bec65b17df24f40bed5d0537d0b733b48e9c771b3d12fe8a918d7bb598.exe

  • Size

    4.8MB

  • MD5

    4fb6765a6e2c6b9e70f3d1c652f09cc3

  • SHA1

    d02646942f0279f76d4b2bafe3539a73f09dded7

  • SHA256

    4376f7bec65b17df24f40bed5d0537d0b733b48e9c771b3d12fe8a918d7bb598

  • SHA512

    be841118f59096ed83f30c76c344a5ff1ca17d9825e3f98ef4fc91694e73ae4675a255253e879bfcaf77b5757a7c384a0e07603ed03acec5b814dc4713a6f113

  • SSDEEP

    98304:m4bo9qJPiAwKa4Ow6+QKAY8kaUzKPkeXYapyNadTHiPRxWJ4:eqJBwKZA0EXYawNaduPRUJ4

Malware Config

Extracted

Family

socks5systemz

C2

ccmbuda.net

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 3 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\4376f7bec65b17df24f40bed5d0537d0b733b48e9c771b3d12fe8a918d7bb598.exe
    "C:\Users\Admin\AppData\Local\Temp\4376f7bec65b17df24f40bed5d0537d0b733b48e9c771b3d12fe8a918d7bb598.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:912
    • C:\Users\Admin\AppData\Local\Temp\is-82LOG.tmp\4376f7bec65b17df24f40bed5d0537d0b733b48e9c771b3d12fe8a918d7bb598.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-82LOG.tmp\4376f7bec65b17df24f40bed5d0537d0b733b48e9c771b3d12fe8a918d7bb598.tmp" /SL5="$90030,4783442,54272,C:\Users\Admin\AppData\Local\Temp\4376f7bec65b17df24f40bed5d0537d0b733b48e9c771b3d12fe8a918d7bb598.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1204
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe

    Filesize

    2.8MB

    MD5

    8174143f9cdf745a061f46919d7ccc15

    SHA1

    505d6da4aecba8920b4352e04c4ee43a2ab62d80

    SHA256

    dffcd5f2036ea62ed43ff4bc2906399b80bf350a680df830651fb99a9f6d403d

    SHA512

    ec030df186930c85e6d4498e9af6e69627f3d4d780c0f053d84c981193542c529896d0c014e59e622a061032d80f01d491b414edc4288619b3e2362d01dafd36

  • C:\Users\Admin\AppData\Local\Temp\is-3VQ7G.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-82LOG.tmp\4376f7bec65b17df24f40bed5d0537d0b733b48e9c771b3d12fe8a918d7bb598.tmp

    Filesize

    680KB

    MD5

    b219991625762389d1374967430ffb23

    SHA1

    ede4adee67f54c986ff0d09341a72ddf1357365a

    SHA256

    643ecf01c733422903661640b4669a94b1993cef6018092a983028c7f5d96134

    SHA512

    25b675c5a1bf9d611ca3e6f53e77004286692a560422c26157dc0cf07845128983787f27660a859a44a926de022cc3ddf526e4b0288db1e90ed7e84d9d5412aa

  • memory/912-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/912-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/912-68-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1204-59-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1204-60-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1204-63-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1204-64-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/1224-69-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1224-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2608-73-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-87-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-66-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-76-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-79-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-82-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-84-0x00000000009D0000-0x0000000000A72000-memory.dmp

    Filesize

    648KB

  • memory/2608-70-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-92-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-95-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-98-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-101-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-104-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-107-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-110-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB

  • memory/2608-113-0x0000000000400000-0x00000000006C8000-memory.dmp

    Filesize

    2.8MB