Analysis

  • max time kernel
    148s
  • max time network
    153s
  • 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 10:20

General

  • Target

    dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.exe

  • Size

    4.8MB

  • MD5

    9a7814ca4122cc8ca1c4554a0bc11c7b

  • SHA1

    210492d1bf16507f03e1c3647a05fb9e0ae018d4

  • SHA256

    dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8

  • SHA512

    9f301aad602f9b158c6b7d717a2b7b1e3929736f980bedb74890bf29f19a106058996d2bf70d604cd1aae72835d56cace61d4157ed94f7c563b12db36a8c29c0

  • SSDEEP

    98304:mTS0f8Lu0KG7UPFRN0OalsPmx0zgoPUG2DYd:qiLu0KOlSzDPPZ

Malware Config

Extracted

Family

socks5systemz

C2

ailfeno.ru

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\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.exe
    "C:\Users\Admin\AppData\Local\Temp\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:8
    • C:\Users\Admin\AppData\Local\Temp\is-L1OQQ.tmp\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-L1OQQ.tmp\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.tmp" /SL5="$401EC,4749319,54272,C:\Users\Admin\AppData\Local\Temp\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4352
      • 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:2852
      • 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:2212

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

    2.7MB

    MD5

    e8801950bdfbd7cfa93392db9d3790fe

    SHA1

    f4be734379ed1ea38ebeb7e9e53d5b8a5288ca97

    SHA256

    8251c64ca9eabd7b0ca51e97bb9e148d119f840e0792e389137e3da70a3c063c

    SHA512

    9f6851c5d4a7caef4df38f2966b193fb45675208c2074499e04cdb2bbc22929c6566390da28073abc9e47a45b440ac7aba2c7c4837f74e3baac9aec02f42e323

  • C:\Users\Admin\AppData\Local\Temp\is-4TA6Q.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-L1OQQ.tmp\dd520bfd993f321fae25b86b9b0c05ee2bab51cdc4b4cb5c6dc6cd0dc80570a8.tmp

    Filesize

    680KB

    MD5

    e8f92ef4f6a6bd645173f2b208a1480a

    SHA1

    598ad6a8f2f48a797157cd9a42a830bcb86685f5

    SHA256

    3411c3185fee7fd0b74d0faa31af1ff2997ab916eed55f2ef3c99ccaf0e8b27e

    SHA512

    6900f01866513efd5f00598269ef7493166821e6dcd3d435936bde4416e5dfac1335dd3156351e6f9b1520e23defbbe99ccb09380962afef3cdcbff3272887e1

  • memory/8-68-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/8-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/8-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2212-87-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-85-0x00000000009D0000-0x0000000000A72000-memory.dmp

    Filesize

    648KB

  • memory/2212-113-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-110-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-107-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-104-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-70-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-73-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-76-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-79-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-82-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-101-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-98-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-92-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2212-95-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2852-60-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2852-59-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2852-64-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/2852-65-0x0000000000400000-0x00000000006C1000-memory.dmp

    Filesize

    2.8MB

  • memory/4352-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4352-69-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB