Analysis

  • max time kernel
    128s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/10/2023, 10:36

General

  • Target

    USD. 5000 + GST@18%.exe

  • Size

    346KB

  • MD5

    ec62d10ab5ff3a3e2044c0d423194384

  • SHA1

    6b541b84665a2129c955a92280c471860c5ec841

  • SHA256

    f24d0855c5866bb897239a3ed3ce49efce3b92e0c3544d01bfa825bd740c9c0a

  • SHA512

    7a80009de692e21481d6e0ca1607551303587e4264e21b23d3129f8231643e6dad3e75dc665aa9d214276539271e0e463dbf10c5cd4dc90ef4caeda60a5825d8

  • SSDEEP

    6144:pXFKo5ldU3CAggG8uH+T810WkhrDSGAdS2vlxvFHLkaOvS5AiZcUD6wNc5m/:pXRdaCunup0WkhrAdDH4aMStZcY6wNKm

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    premium89.web-hosting.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    bles sing 20 23

Signatures

  • Executes dropped EXE 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\USD. 5000 + GST@18%.exe
    "C:\Users\Admin\AppData\Local\Temp\USD. 5000 + GST@18%.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Users\Admin\AppData\Local\Temp\iqyeu.exe
      "C:\Users\Admin\AppData\Local\Temp\iqyeu.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:5048
      • C:\Users\Admin\AppData\Local\Temp\iqyeu.exe
        "C:\Users\Admin\AppData\Local\Temp\iqyeu.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\evucjx.xts

    Filesize

    333KB

    MD5

    8a8a5e570b5171ccdf6417d407c3f95d

    SHA1

    dc46b801905e19671c3e5d28a9402f8327519066

    SHA256

    74e7ae2a7990d0cd64270a4fb0c8daa755fa88d61f61b02cd5aae6f0c6c930b2

    SHA512

    1e343172a7465f39a044d90a753cf4a153fdd20a9df870b00f4c54939d1418c8de823cfec3d293413d6dbcb93764e493c80554ebb5eede5b887ce329c214769e

  • C:\Users\Admin\AppData\Local\Temp\iqyeu.exe

    Filesize

    169KB

    MD5

    a47d426b55d746584db743d6467eaf60

    SHA1

    e123be247385a8f667dc7c1ab6311c5051fa5c0e

    SHA256

    39421c9db32de75abb5fc036021dbe282a4c2bc9f44011c8a7f4e51441652572

    SHA512

    b7a0a293085a717b54706b08ec38103bc1c80471d0dab7d22d5c5168c7e567098d8c0578aaa2653a1d0362307e5053676d978f06f2e4f3e14765ea695582feed

  • C:\Users\Admin\AppData\Local\Temp\iqyeu.exe

    Filesize

    169KB

    MD5

    a47d426b55d746584db743d6467eaf60

    SHA1

    e123be247385a8f667dc7c1ab6311c5051fa5c0e

    SHA256

    39421c9db32de75abb5fc036021dbe282a4c2bc9f44011c8a7f4e51441652572

    SHA512

    b7a0a293085a717b54706b08ec38103bc1c80471d0dab7d22d5c5168c7e567098d8c0578aaa2653a1d0362307e5053676d978f06f2e4f3e14765ea695582feed

  • C:\Users\Admin\AppData\Local\Temp\iqyeu.exe

    Filesize

    169KB

    MD5

    a47d426b55d746584db743d6467eaf60

    SHA1

    e123be247385a8f667dc7c1ab6311c5051fa5c0e

    SHA256

    39421c9db32de75abb5fc036021dbe282a4c2bc9f44011c8a7f4e51441652572

    SHA512

    b7a0a293085a717b54706b08ec38103bc1c80471d0dab7d22d5c5168c7e567098d8c0578aaa2653a1d0362307e5053676d978f06f2e4f3e14765ea695582feed

  • memory/3388-14-0x0000000074340000-0x0000000074AF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3388-17-0x0000000005700000-0x0000000005710000-memory.dmp

    Filesize

    64KB

  • memory/3388-10-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/3388-11-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/3388-12-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/3388-13-0x0000000074340000-0x0000000074AF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3388-26-0x0000000006DD0000-0x0000000006DDA000-memory.dmp

    Filesize

    40KB

  • memory/3388-15-0x0000000005700000-0x0000000005710000-memory.dmp

    Filesize

    64KB

  • memory/3388-16-0x0000000005510000-0x0000000005552000-memory.dmp

    Filesize

    264KB

  • memory/3388-8-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/3388-18-0x0000000005CC0000-0x0000000006264000-memory.dmp

    Filesize

    5.6MB

  • memory/3388-19-0x0000000005700000-0x0000000005710000-memory.dmp

    Filesize

    64KB

  • memory/3388-20-0x0000000005700000-0x0000000005710000-memory.dmp

    Filesize

    64KB

  • memory/3388-21-0x0000000005810000-0x0000000005876000-memory.dmp

    Filesize

    408KB

  • memory/3388-22-0x0000000005700000-0x0000000005710000-memory.dmp

    Filesize

    64KB

  • memory/3388-23-0x0000000006C30000-0x0000000006C80000-memory.dmp

    Filesize

    320KB

  • memory/3388-24-0x0000000006D20000-0x0000000006DBC000-memory.dmp

    Filesize

    624KB

  • memory/3388-25-0x0000000006E60000-0x0000000006EF2000-memory.dmp

    Filesize

    584KB

  • memory/5048-5-0x0000000000C80000-0x0000000000C82000-memory.dmp

    Filesize

    8KB