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
    18-06-2024 13:19

General

  • Target

    01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe

  • Size

    4.6MB

  • MD5

    dba13ab7e5e163970672806698bce11e

  • SHA1

    2f4d6eb12d65b35aba997d72e2c7c8760446b72b

  • SHA256

    01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782

  • SHA512

    8348ea88eea0cfe3b29b1cd2bd2550d73c9af446f21a641368b7a8ab75e342d41f193ee7fb658c52445732cca140167e2758fe11f05d94bc0fab4ad77779d0f3

  • SSDEEP

    98304:mioqIDdl0emGn3loUlKnMc3S9PwY7a3PZCR0D26UExk78FP:MDDdl0ehnvrg2a3PZCRSCEueP

Malware Config

Extracted

Family

socks5systemz

C2

aijqoce.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\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe
    "C:\Users\Admin\AppData\Local\Temp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Users\Admin\AppData\Local\Temp\is-P24F8.tmp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-P24F8.tmp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp" /SL5="$7011E,4587802,54272,C:\Users\Admin\AppData\Local\Temp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4088
      • C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
        "C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3256
      • C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
        "C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4836

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
    Filesize

    2.5MB

    MD5

    d1fd6f4771bd067b805f6a1740f79bb7

    SHA1

    ec281ef157514c38f33e12e52d8c4c662db3ca5a

    SHA256

    38d37cc3708c81a6aa7a47cbc933d50647f3feb810e6143848379b2091aad8cf

    SHA512

    c2c700379e288d30fb2371f960bd52eb532735b2e2d01f9dbed4ffda1650cf790f5be825043b3e82fe92b111ce95dacc139b525fdf3d7f85432e4b5020925ae0

  • C:\Users\Admin\AppData\Local\Temp\is-KV8U9.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-P24F8.tmp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp
    Filesize

    680KB

    MD5

    18d21bb7e8480255c7d24705a9a8c78e

    SHA1

    d1342b489f1b4921d0c8b100261e819db24f2981

    SHA256

    715669c614242a778a97873ed475b333700d2d4cb0277286f38fa6a2a551ef91

    SHA512

    d4eef761e23035f35c5bdcced816d678f009c2115f9a0cc2436395fdb07ecf84304c3341d2fcb0d299b881449f46c9b499c3903fb427a8f2bf3abb3840ee3cb3

  • memory/2512-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/2512-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2512-68-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/3256-59-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/3256-61-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/3256-63-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4088-69-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4088-7-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4836-70-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-87-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-73-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-76-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-79-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-82-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-84-0x00000000007E0000-0x0000000000882000-memory.dmp
    Filesize

    648KB

  • memory/4836-67-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-92-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-95-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-98-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-101-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-104-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-107-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-110-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB

  • memory/4836-113-0x0000000000400000-0x000000000067A000-memory.dmp
    Filesize

    2.5MB