Analysis

  • max time kernel
    146s
  • 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
    25-06-2024 17:17

General

  • Target

    0d309f881cba274bbefe5da4fadd5b1d4d220c76fe2d2ce5d3502007b12ba3e5.exe

  • Size

    4.9MB

  • MD5

    e913745741ae6571270da57274f95399

  • SHA1

    5164cd4ffefbbb5a79687c809eaf18c9ef42398f

  • SHA256

    0d309f881cba274bbefe5da4fadd5b1d4d220c76fe2d2ce5d3502007b12ba3e5

  • SHA512

    97a6ff78cb4434abacd684c5c4ccbf84d648659ad8f10351a4ccb7df0cff114f9666be896f3accc672d79f961726e4101766306b4ffc4935d2e5d6e0c5776ce5

  • SSDEEP

    98304:mvMDqZr4cTtGQlCHbv8wyb0uo5OTbqpVxHJGZDCis5kjB9RMedJGe5w:qZ0cJGQlCHb/ybI8i/MdV9e0rw

Malware Config

Extracted

Family

socks5systemz

C2

budcozb.com

http://budcozb.com/search/?q=67e28dd8655df07d165afd1f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff612c3ea9d923f

http://budcozb.com/search/?q=67e28dd8655df07d165afd1f7c27d78406abdd88be4b12eab517aa5c96bd86e990814d845a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9c9938c8679e12

Signatures

  • Detect Socks5Systemz Payload 3 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\0d309f881cba274bbefe5da4fadd5b1d4d220c76fe2d2ce5d3502007b12ba3e5.exe
    "C:\Users\Admin\AppData\Local\Temp\0d309f881cba274bbefe5da4fadd5b1d4d220c76fe2d2ce5d3502007b12ba3e5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4352
    • C:\Users\Admin\AppData\Local\Temp\is-LUGFL.tmp\0d309f881cba274bbefe5da4fadd5b1d4d220c76fe2d2ce5d3502007b12ba3e5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-LUGFL.tmp\0d309f881cba274bbefe5da4fadd5b1d4d220c76fe2d2ce5d3502007b12ba3e5.tmp" /SL5="$60204,4922972,54272,C:\Users\Admin\AppData\Local\Temp\0d309f881cba274bbefe5da4fadd5b1d4d220c76fe2d2ce5d3502007b12ba3e5.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2896
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32_64.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32_64.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4172
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32_64.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32_64.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2140

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32_64.exe

    Filesize

    3.1MB

    MD5

    fe14bec862cb4a19ccb2a3f26a971161

    SHA1

    c799b0813841c43cac05bcb5dfb165d0ffbac4b4

    SHA256

    736fd2ba224c96f2a3b467bf32b466c33c916be911d341a35eb4e0cc7240333d

    SHA512

    ee33755f22c0e254e469febc33d8b337f1f1f9f2d273de21ca125ba057dd6677a566ad89bad92515d3f7b916476b647b502cbb8ab6215255cfab408b5149452a

  • C:\Users\Admin\AppData\Local\Temp\is-4D4RA.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-LUGFL.tmp\0d309f881cba274bbefe5da4fadd5b1d4d220c76fe2d2ce5d3502007b12ba3e5.tmp

    Filesize

    680KB

    MD5

    2dea2a241a5a0e02b9d152ad489ac613

    SHA1

    d9a5ebd030b5caf60d8178d7f14c4a61bf20681c

    SHA256

    3c3ff0b15ffddc46cb8bb3584e1b099d53e1e75daab0e17673cf2812bc2b2d64

    SHA512

    87d9ca01c5f7cb2b43a4c0665b429c2de8563782e5daf238f2882a8a621bc3ccc05fbddec8d874975e64c3a151718513d2db25de0e47ed0dacf6e3af55833190

  • memory/2140-102-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-105-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-79-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-120-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-82-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-117-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-113-0x0000000000A10000-0x0000000000AB2000-memory.dmp

    Filesize

    648KB

  • memory/2140-67-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-69-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-112-0x0000000000A10000-0x0000000000AB2000-memory.dmp

    Filesize

    648KB

  • memory/2140-111-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-85-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-75-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-76-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-108-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-99-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-72-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-88-0x0000000000A10000-0x0000000000AB2000-memory.dmp

    Filesize

    648KB

  • memory/2140-91-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2140-96-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/2896-12-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2896-71-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4172-63-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/4172-60-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/4172-65-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/4172-59-0x0000000000400000-0x0000000000721000-memory.dmp

    Filesize

    3.1MB

  • memory/4352-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4352-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4352-70-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB