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Analysis

  • max time kernel
    297s
  • max time network
    285s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05/09/2024, 22:41

General

  • Target

    7e33a3b6de352650c44163c2ff989cad764017c508e13b240f783c08c736f2c5.exe

  • Size

    3.5MB

  • MD5

    c883436a51137626711481fed4be79c8

  • SHA1

    57c7e6907219e8aae747f64343066963b57508b0

  • SHA256

    7e33a3b6de352650c44163c2ff989cad764017c508e13b240f783c08c736f2c5

  • SHA512

    8b6c00183876d0bd712e616fcb6db3f7d5ffae4eeeb25fbf6c0a17b725b44f82cf7e2e810404560ab2373cbaf053d7baa89aa999e6c0c59161cf1bf9ab1098b9

  • SSDEEP

    49152:Cq83Vz78OluGWBbuAC/diGe0rwNBspK/DQpBjMVJZEY3aXUzjXv8lszLTx660Uax:n8txwBbd8dixqwDspccpp5Uzj/8ls1KX

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 2 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.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7e33a3b6de352650c44163c2ff989cad764017c508e13b240f783c08c736f2c5.exe
    "C:\Users\Admin\AppData\Local\Temp\7e33a3b6de352650c44163c2ff989cad764017c508e13b240f783c08c736f2c5.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Users\Admin\AppData\Local\Temp\is-U1KD3.tmp\7e33a3b6de352650c44163c2ff989cad764017c508e13b240f783c08c736f2c5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-U1KD3.tmp\7e33a3b6de352650c44163c2ff989cad764017c508e13b240f783c08c736f2c5.tmp" /SL5="$50152,3387544,54272,C:\Users\Admin\AppData\Local\Temp\7e33a3b6de352650c44163c2ff989cad764017c508e13b240f783c08c736f2c5.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:2792
      • C:\Users\Admin\AppData\Local\Audio Cutter Joiner\audiocutterjoiner32_64.exe
        "C:\Users\Admin\AppData\Local\Audio Cutter Joiner\audiocutterjoiner32_64.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Audio Cutter Joiner\audiocutterjoiner32_64.exe

    Filesize

    2.1MB

    MD5

    bb93e0794549090f9b51330f4cf18174

    SHA1

    aff16714e0aca8b6f8e86d2b34d7810bfc693e36

    SHA256

    969d33b5f4aedbe805282a630da8cb43c80d3d81f466c59d292ecd6682a69e1d

    SHA512

    2a9a3fb67009b57991872cf78c42b3d4a75085bb6afb27640f73b39bb06e7345f3143c48dd403be22dd9ea2c6e2269598e40a440fe4f27f11fdb1fd1e6bcfdca

  • \Users\Admin\AppData\Local\Temp\is-ILAI8.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-ILAI8.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-U1KD3.tmp\7e33a3b6de352650c44163c2ff989cad764017c508e13b240f783c08c736f2c5.tmp

    Filesize

    689KB

    MD5

    fba25940d073d324e5df77f502a5a7ce

    SHA1

    cfbeab0f1adff3c4fd3e3672bc691da0d7329305

    SHA256

    4944ebd7f24f7a842472ada777b872f6c678ffd8b4d6009a3dd7aca4ed444699

    SHA512

    aeff6581e4242e38e7bc749a254e87f2e7ef865a9b74e500eb93351b59ac28fafa030104b288a91440eec1b54cb52390b4f968eea08482ca397eba9b1e108e01

  • memory/2624-96-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-102-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-127-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-56-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-124-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-121-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-58-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-118-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-115-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-64-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-65-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-68-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-71-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-74-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-77-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-80-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-81-0x00000000029B0000-0x0000000002A52000-memory.dmp

    Filesize

    648KB

  • memory/2624-87-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-90-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-93-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-111-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-99-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-108-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2624-105-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/2688-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2688-61-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2688-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2792-8-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2792-63-0x00000000048D0000-0x0000000004AE9000-memory.dmp

    Filesize

    2.1MB

  • memory/2792-57-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2792-54-0x00000000048D0000-0x0000000004AE9000-memory.dmp

    Filesize

    2.1MB