Analysis

  • max time kernel
    142s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2024 07:58

General

  • Target

    31bc9fa8982a4e7fc80bb690761401ab18417084522181ee094996ae0d49b5b1.exe

  • Size

    3.3MB

  • MD5

    777c4ebdcd500b06b06a0b84f0ef6c4f

  • SHA1

    f56a2b0bbc3e7c163399c276867c19fcd046a585

  • SHA256

    31bc9fa8982a4e7fc80bb690761401ab18417084522181ee094996ae0d49b5b1

  • SHA512

    e554c67196bc54817c4f83b5edf0e5a6bb2bb10217b6ce0d6d79c1e004193ff30e818e9af4573c335eaa20d29f2a69cbf5df562939cb2b9e2ce365e711126c99

  • SSDEEP

    98304:NSPfRmjXT1GRrIIPqI6K6BwTTUghjOICKOBa:8PfRmjj16IIPqFmfUK+PBa

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\31bc9fa8982a4e7fc80bb690761401ab18417084522181ee094996ae0d49b5b1.exe
    "C:\Users\Admin\AppData\Local\Temp\31bc9fa8982a4e7fc80bb690761401ab18417084522181ee094996ae0d49b5b1.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4620
    • C:\Users\Admin\AppData\Local\Temp\is-CPUQM.tmp\31bc9fa8982a4e7fc80bb690761401ab18417084522181ee094996ae0d49b5b1.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CPUQM.tmp\31bc9fa8982a4e7fc80bb690761401ab18417084522181ee094996ae0d49b5b1.tmp" /SL5="$80044,3259756,54272,C:\Users\Admin\AppData\Local\Temp\31bc9fa8982a4e7fc80bb690761401ab18417084522181ee094996ae0d49b5b1.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2248
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" pause lerry_video_11262
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5052
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 pause lerry_video_11262
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1544
      • C:\Users\Admin\AppData\Local\Lerry Video 22.0.993\lerryvideo.exe
        "C:\Users\Admin\AppData\Local\Lerry Video 22.0.993\lerryvideo.exe" -i
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Lerry Video 22.0.993\lerryvideo.exe

    Filesize

    3.0MB

    MD5

    d7cdce7110bc662027753ff28ab7f013

    SHA1

    db980511aed0cce1f94675932fcb0b261ae0f0fd

    SHA256

    652838e15220b1fbb878ee74b48941db15d7cba5190f2d274e39857b5dc7cc13

    SHA512

    18abb3f488b3d9222117763caac38c3ef6a40975c20c30295721f0572f68fd1e8d1273a26bec7a5e1eb7dd487005bb57560fcca694b5678c914c1d4931b27167

  • C:\Users\Admin\AppData\Local\Lerry Video 22.0.993\sqlite3.dll

    Filesize

    630KB

    MD5

    e477a96c8f2b18d6b5c27bde49c990bf

    SHA1

    e980c9bf41330d1e5bd04556db4646a0210f7409

    SHA256

    16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

    SHA512

    335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

  • C:\Users\Admin\AppData\Local\Temp\is-7VFHH.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-CPUQM.tmp\31bc9fa8982a4e7fc80bb690761401ab18417084522181ee094996ae0d49b5b1.tmp

    Filesize

    687KB

    MD5

    272773a603c7b69c84a68b7565b33fb6

    SHA1

    afdaab9bff15fc1011a1a5e4116801e6e9723c2c

    SHA256

    d133ad16b16c912999ff41029d755c25960ec6f2f94f5d9abdc9dddf1ac802cf

    SHA512

    a1370c679db79f9f227c710f8190a3cbd36c97f3f8332cfe7a0eead67b773bc23b2d9948da230fc9a4baed3a5bd78599db5610fff23a17a85f97ea4366586afa

  • memory/2248-48-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2248-9-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2688-52-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-72-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-43-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-44-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-111-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-107-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-51-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-53-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/2688-102-0x00000000009C0000-0x0000000000A62000-memory.dmp

    Filesize

    648KB

  • memory/2688-56-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-60-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-64-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-68-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-42-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-73-0x00000000009C0000-0x0000000000A62000-memory.dmp

    Filesize

    648KB

  • memory/2688-80-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-84-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-88-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-92-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-96-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-100-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2688-103-0x00000000009C0000-0x0000000000A62000-memory.dmp

    Filesize

    648KB

  • memory/4620-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4620-49-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4620-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB