Analysis

  • max time kernel
    300s
  • max time network
    305s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-04-2024 05:16

General

  • Target

    6952b162730b2cfdb4512d9975b22a4e9fd7c68fc1a406acb0baf6e31e5b77a2.exe

  • Size

    4.5MB

  • MD5

    250cc589c3b8b0518e356c3f70a68510

  • SHA1

    1912bc4cea5800fce1944c334b2e2fff74c3e41c

  • SHA256

    6952b162730b2cfdb4512d9975b22a4e9fd7c68fc1a406acb0baf6e31e5b77a2

  • SHA512

    418c9d19940d5ee11d92feefa813f94aa196aea62f6e6c2ed3caebca632091bd38a48a126d451ffaa873fc1dd14b505e6200ff32253293419828b2dcbd7b82c9

  • SSDEEP

    98304:7aRRFqMvmdMRzovbRQQetMeuRHmV/n98eIN1nw2qaXi7f5vNTPkr:M+NQSeuRH2/n6C7wib3TPo

Malware Config

Extracted

Family

socks5systemz

C2

http://erdveav.ua/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6489f912c0ea94

http://erdveav.ua/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12eab517aa5c96bd86e89d804d96148ab2865b77f80ebad9c50f7cb63037ed2ab423a43a4383ba915d911ec07bb606a0708720fa11b861c353baf51aba1e7242fa7023cc366689fe12c7e9969a3ecc

Signatures

  • Detect Socks5Systemz Payload 4 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 11 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 WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6952b162730b2cfdb4512d9975b22a4e9fd7c68fc1a406acb0baf6e31e5b77a2.exe
    "C:\Users\Admin\AppData\Local\Temp\6952b162730b2cfdb4512d9975b22a4e9fd7c68fc1a406acb0baf6e31e5b77a2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Users\Admin\AppData\Local\Temp\is-7HK15.tmp\is-B5G57.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-7HK15.tmp\is-B5G57.tmp" /SL4 $70124 "C:\Users\Admin\AppData\Local\Temp\6952b162730b2cfdb4512d9975b22a4e9fd7c68fc1a406acb0baf6e31e5b77a2.exe" 4463743 52224
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2080
      • C:\Users\Admin\AppData\Local\Color Media Player\recorder32.exe
        "C:\Users\Admin\AppData\Local\Color Media Player\recorder32.exe" -i
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2876
      • C:\Users\Admin\AppData\Local\Color Media Player\recorder32.exe
        "C:\Users\Admin\AppData\Local\Color Media Player\recorder32.exe" -s
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Color Media Player\recorder32.exe

    Filesize

    1.9MB

    MD5

    daddc1e6389230a7fda1da414120d41b

    SHA1

    896a87c42d18343781d0296e4547b5f76c78f66a

    SHA256

    b7533c7937bf102d56cf69d845bf805eb4aba67a8ff4a0ebfe4a34469570c3f8

    SHA512

    6d9748886f12f558d497d8a17ad7e98dbd5b7473946437d807f85477c27c48beb8b8fb0748d0f19075a0e578e63a464aecf7a106d6aa60ddb48c14e5c3756119

  • \Users\Admin\AppData\Local\Temp\is-1IO7N.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-1IO7N.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • \Users\Admin\AppData\Local\Temp\is-1IO7N.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-7HK15.tmp\is-B5G57.tmp

    Filesize

    648KB

    MD5

    d29800551373c0e0b534392c7b925fda

    SHA1

    801e795989d66db0f862b861ee0a7560da6c6ddc

    SHA256

    bbd73a9d3754b09a090ead3c7bcc67e010098d3dc8c498c5a56643b7817f64c5

    SHA512

    563864a085f1c17e7d6477fa1e2fe3475fe6ee670e95998361baca79b769699b9a30b3fd74c47d89972ba6b91eb104dd7f5f43a74de0a189b8ecbab1d2b5a8de

  • memory/2076-2-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2076-0-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2076-84-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2080-85-0x0000000000400000-0x00000000004B1000-memory.dmp

    Filesize

    708KB

  • memory/2080-65-0x0000000003170000-0x0000000003351000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-117-0x0000000002300000-0x00000000023A2000-memory.dmp

    Filesize

    648KB

  • memory/2604-105-0x0000000002300000-0x00000000023A2000-memory.dmp

    Filesize

    648KB

  • memory/2604-81-0x0000000000F00000-0x00000000010E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-78-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-149-0x0000000002300000-0x00000000023A2000-memory.dmp

    Filesize

    648KB

  • memory/2604-83-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-148-0x0000000002300000-0x00000000023A2000-memory.dmp

    Filesize

    648KB

  • memory/2604-146-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-86-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-89-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-90-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-91-0x0000000000F00000-0x00000000010E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-94-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-95-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-98-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-101-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-104-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-143-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-111-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-114-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-140-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-118-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-121-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-124-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-127-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-131-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-134-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2604-137-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2876-71-0x0000000000E10000-0x0000000000FF1000-memory.dmp

    Filesize

    1.9MB

  • memory/2876-73-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2876-67-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2876-72-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB

  • memory/2876-75-0x0000000000400000-0x00000000005E1000-memory.dmp

    Filesize

    1.9MB