Analysis

  • max time kernel
    298s
  • max time network
    260s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    17-06-2024 05:04

General

  • Target

    4755fee796f6ac1c16f175e143f9e8bb1e1dbbd9e9725aef7f37d2d798937b05.exe

  • Size

    5.6MB

  • MD5

    22421038cc9edadfba058173043f5421

  • SHA1

    43d4fadd5d2d0184a09775685e1812982e7a8a63

  • SHA256

    4755fee796f6ac1c16f175e143f9e8bb1e1dbbd9e9725aef7f37d2d798937b05

  • SHA512

    3fe5f55264061ff4ef2e6b66b9c80ec9209183e1dd8877547b2daa596d71e27b45be7fbf358155aefbef2e731bc26dd4b6c27c3c4539b1672ab2d7ba9456bd98

  • SSDEEP

    98304:mAJgAAgVw3giseKjNISco3ujkrJpB4/9Qh5qIGCnB5XUC/98g6Q9Db2fFx4MJRQn:BgA9w3vKBIS7uIBX7Hr6G0rPccx4

Malware Config

Extracted

Family

socks5systemz

C2

ezkttpv.ua

http://ezkttpv.ua/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f88ff11c7e99d

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4755fee796f6ac1c16f175e143f9e8bb1e1dbbd9e9725aef7f37d2d798937b05.exe
    "C:\Users\Admin\AppData\Local\Temp\4755fee796f6ac1c16f175e143f9e8bb1e1dbbd9e9725aef7f37d2d798937b05.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1444
    • C:\Users\Admin\AppData\Local\Temp\is-JAS05.tmp\4755fee796f6ac1c16f175e143f9e8bb1e1dbbd9e9725aef7f37d2d798937b05.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-JAS05.tmp\4755fee796f6ac1c16f175e143f9e8bb1e1dbbd9e9725aef7f37d2d798937b05.tmp" /SL5="$5014C,5612463,54272,C:\Users\Admin\AppData\Local\Temp\4755fee796f6ac1c16f175e143f9e8bb1e1dbbd9e9725aef7f37d2d798937b05.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2972
      • C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
        "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2020
      • C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
        "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2444

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
    Filesize

    3.3MB

    MD5

    f307eaabdb5c728b616b8a9325854489

    SHA1

    46822f870691468c2ccaafbba547e6fe38c14069

    SHA256

    7e6f6e05502b3f87d7f0c157793348cf1571ae2b2098ffd42ddde0db33ee393c

    SHA512

    369cb953b8998825f1e4f41898dfda620fca8d0e251db5443e8b3e44bb602b16cb9d6cc3897521394ca84d11eb2de449698f869d1d8f27f5c571380877737ff7

  • \Users\Admin\AppData\Local\Temp\is-JAS05.tmp\4755fee796f6ac1c16f175e143f9e8bb1e1dbbd9e9725aef7f37d2d798937b05.tmp
    Filesize

    680KB

    MD5

    4468da54a8b07613269ca5537be5e235

    SHA1

    9aded70f0853385c5561fa275a77508edae15111

    SHA256

    0177788e41f30da5d5ac6c66c54fd51c8eac03a1eddc9deb5ff6aefff7821153

    SHA512

    3b7c3a3bfe4e9ec20ba4d04d06270aa9e26a342bc806c092b37d6a97064c0c7b54f75c9242295f03899d1b5deac99b91480d0c4ba23a6bc33f3739f322279313

  • \Users\Admin\AppData\Local\Temp\is-OUG1K.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-OUG1K.tmp\_isetup\_isdecmp.dll
    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • \Users\Admin\AppData\Local\Temp\is-OUG1K.tmp\_isetup\_shfoldr.dll
    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1444-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/1444-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1444-76-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2020-72-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2020-68-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2020-69-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-85-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-123-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-140-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-135-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-78-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-132-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-82-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-129-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-88-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-91-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-94-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-95-0x00000000022A0000-0x0000000002342000-memory.dmp
    Filesize

    648KB

  • memory/2444-101-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-104-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-107-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-110-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-113-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-116-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-120-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-74-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2444-126-0x0000000000400000-0x0000000000747000-memory.dmp
    Filesize

    3.3MB

  • memory/2972-9-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2972-81-0x0000000003230000-0x0000000003577000-memory.dmp
    Filesize

    3.3MB

  • memory/2972-77-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2972-67-0x0000000003230000-0x0000000003577000-memory.dmp
    Filesize

    3.3MB