Analysis

  • max time kernel
    143s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    01-07-2024 01:20

General

  • Target

    ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.exe

  • Size

    4.9MB

  • MD5

    df3ab9646942241f8f3097ec8e22f312

  • SHA1

    ddca2ae67957d3a7d6fdd0a9860ec90360ad5e8b

  • SHA256

    ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63

  • SHA512

    7bd87ec6a2301faffd601aa29d2c7ab3def9e838d0b646abe217035846f689006af177b1a25dfe26edbcf1408825c6fe56ea4c9abafce9acf7c41b9e5f64253f

  • SSDEEP

    98304:CB7SV3Obs0aDiog6rLw22eTG72H60I0MnLdp/QGKUvM14Qx3:1Mbs0Qvgw8MGR0MLn/55MSQl

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 16 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 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\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.exe
    "C:\Users\Admin\AppData\Local\Temp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\Users\Admin\AppData\Local\Temp\is-L7HNO.tmp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-L7HNO.tmp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.tmp" /SL5="$400F4,4915507,54272,C:\Users\Admin\AppData\Local\Temp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2096
      • C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe
        "C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2104
      • C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe
        "C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2580

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\Temp\is-L0UVO.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-L0UVO.tmp\_isetup\_shfoldr.dll
    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-L7HNO.tmp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.tmp
    Filesize

    680KB

    MD5

    30aac890bf700fefcd93022f840254b1

    SHA1

    70739b6caf72dd41b3b4cefd6ad2d4942db7ea2a

    SHA256

    796212c565796f92a71eb1fc46cbe8e06a746f1da93a232ae58fcd500670f4f8

    SHA512

    e954a5e610118163cbc471766d9d9f1a9dad95dc06b96cc3b7e9d695da1974e0ef57ab890d06e10bee25a055a022ddd17d63a2ef9919ffc3cee5c516b15567b2

  • \Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe
    Filesize

    3.4MB

    MD5

    57e6e48c920a316c9fd790a5c12714ea

    SHA1

    94cb960734aa22a57828fac573d2131eb1f1dff4

    SHA256

    9535d40517813037a3de472298e69928b4444d303e618ede1c62ceb38fe27564

    SHA512

    ca87eef9af109915c41c55edf649dd63e6831fc30cd93aa0c6d297dd09c48ebaf279e948697d10714ae5b48c9d65b24cff9a0e425bc69ca7d3aa789e51921009

  • memory/1932-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1932-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/1932-73-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2096-9-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2096-64-0x0000000003AF0000-0x0000000003E59000-memory.dmp
    Filesize

    3.4MB

  • memory/2096-76-0x0000000003AF0000-0x0000000003E59000-memory.dmp
    Filesize

    3.4MB

  • memory/2096-74-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2104-65-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2104-66-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2104-69-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-79-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-101-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-71-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-82-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-85-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-88-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-91-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-92-0x0000000002610000-0x00000000026B1000-memory.dmp
    Filesize

    644KB

  • memory/2580-98-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-75-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-104-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-107-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-110-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-113-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-114-0x0000000002610000-0x00000000026B1000-memory.dmp
    Filesize

    644KB

  • memory/2580-115-0x0000000002610000-0x00000000026B1000-memory.dmp
    Filesize

    644KB

  • memory/2580-119-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB

  • memory/2580-122-0x0000000000400000-0x0000000000769000-memory.dmp
    Filesize

    3.4MB