Analysis

  • max time kernel
    293s
  • max time network
    285s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 22:50

General

  • Target

    416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe

  • Size

    4.9MB

  • MD5

    269a757cdd2d0f6d82ffb5a386aeee5d

  • SHA1

    857920c33dab7be2f41587087e39482b4d32b93a

  • SHA256

    416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e

  • SHA512

    4f8c46e6411782668b73fea3e831b77daecba9c897d3898f3ae265b0d4a9c325e1a930ac95c6810339cb09ad7e1c35afe885047dc728b3c25730ffab38893ebd

  • SSDEEP

    98304:mw51I1Ojc13BlmNWzHJMUikxn8AY8qWiXAEvl9:X5xj83BtzpMf4n8AYLXAEt9

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Unexpected DNS network traffic destination 2 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\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe
    "C:\Users\Admin\AppData\Local\Temp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1748
    • C:\Users\Admin\AppData\Local\Temp\is-8FPRT.tmp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-8FPRT.tmp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp" /SL5="$40112,4836427,54272,C:\Users\Admin\AppData\Local\Temp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2988
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2712
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe

    Filesize

    3.0MB

    MD5

    7799a5274162870fdf533d92c66f8609

    SHA1

    6b5a84ec3d5e546f8a283837f249da55ac76d583

    SHA256

    7f1de671a637afdee839e731a18713f4a4bce1af5c6cb597622e31798ade0e63

    SHA512

    e367af7ec28d882ca753f06910d216c72206de557c1923cf8bb451667ccf8ff11cf6930ab9da362d142d14feb06ec4fe0589d2c9c80348b66e075f37df285261

  • \Users\Admin\AppData\Local\Temp\is-60E3A.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-60E3A.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-8FPRT.tmp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp

    Filesize

    680KB

    MD5

    b70ed3d1bcbe0eb891e7fcd65a6c77e4

    SHA1

    30cf3d962d02a6a985d9adb67c915295568d69fa

    SHA256

    3f93f208a112fac1c2fa79cab9829339bc479d2d6585c2e997465e986da5e6f7

    SHA512

    86197a5309226a26badf73e64935c0c373013694dbbefd7d87129accc4652adafa70e7a6a2b53845d67acdacb8081a14be67d0f63aa2554991572b60cc04ab86

  • memory/1748-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1748-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1748-73-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2712-70-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2712-65-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2712-66-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-82-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-113-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-135-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-75-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-132-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-79-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-129-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-85-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-88-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-91-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-92-0x0000000002670000-0x0000000002712000-memory.dmp

    Filesize

    648KB

  • memory/2892-98-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-101-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-104-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-107-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-110-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-126-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-116-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-119-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2892-122-0x0000000000400000-0x000000000070A000-memory.dmp

    Filesize

    3.0MB

  • memory/2988-63-0x0000000004240000-0x000000000454A000-memory.dmp

    Filesize

    3.0MB

  • memory/2988-11-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2988-78-0x0000000004240000-0x000000000454A000-memory.dmp

    Filesize

    3.0MB

  • memory/2988-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB