Analysis

  • max time kernel
    142s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 02:21

General

  • Target

    a9820550522d6a148ac068caf435027f2a9c7480021b8f54730aba998e28ffd3.exe

  • Size

    406KB

  • MD5

    bd36049cff41be20392da7c3d5279b98

  • SHA1

    cd3f09d3273d60aa03a127e99f37c1c73b086e97

  • SHA256

    a9820550522d6a148ac068caf435027f2a9c7480021b8f54730aba998e28ffd3

  • SHA512

    1174e503416ca3d0fc0711c1eb68e53249600cbf52d5b5e9b53448c9bd266edd9e5bb998ee975b24341e0fc577445d40868dfb44dbcd77b66eb4f5f4f43073d0

  • SSDEEP

    12288:Dn0SBro//EWZys11TLMKrLqfhkQHf4e7Kj:DNro/ckNzPMyqfhz4e7a

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a9820550522d6a148ac068caf435027f2a9c7480021b8f54730aba998e28ffd3.exe
    "C:\Users\Admin\AppData\Local\Temp\a9820550522d6a148ac068caf435027f2a9c7480021b8f54730aba998e28ffd3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Users\Admin\AppData\Local\Temp\mzhxcbw.exe
      "C:\Users\Admin\AppData\Local\Temp\mzhxcbw.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2812
      • C:\Users\Admin\AppData\Local\Temp\mzhxcbw.exe
        "C:\Users\Admin\AppData\Local\Temp\mzhxcbw.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    167KB

    MD5

    70a1ce678280758e42b3ec7018648bce

    SHA1

    40de991e1b7eea6919f34c6b0d3af44d04d0a8bb

    SHA256

    2886fd36add64512255f48a6890e07873b4cb9a26810b0ff4ff4edfdf1446cb3

    SHA512

    a3ed8647c6fcc9427b0777e802a3b495c118785092b8b7dda56b5f6de3f6168c8b9d6a0886e304fcae314c15c905be61ce5f382ed8cdacc2d650db3222517383

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

    Filesize

    167KB

    MD5

    70a1ce678280758e42b3ec7018648bce

    SHA1

    40de991e1b7eea6919f34c6b0d3af44d04d0a8bb

    SHA256

    2886fd36add64512255f48a6890e07873b4cb9a26810b0ff4ff4edfdf1446cb3

    SHA512

    a3ed8647c6fcc9427b0777e802a3b495c118785092b8b7dda56b5f6de3f6168c8b9d6a0886e304fcae314c15c905be61ce5f382ed8cdacc2d650db3222517383

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

    Filesize

    167KB

    MD5

    70a1ce678280758e42b3ec7018648bce

    SHA1

    40de991e1b7eea6919f34c6b0d3af44d04d0a8bb

    SHA256

    2886fd36add64512255f48a6890e07873b4cb9a26810b0ff4ff4edfdf1446cb3

    SHA512

    a3ed8647c6fcc9427b0777e802a3b495c118785092b8b7dda56b5f6de3f6168c8b9d6a0886e304fcae314c15c905be61ce5f382ed8cdacc2d650db3222517383

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

    Filesize

    167KB

    MD5

    70a1ce678280758e42b3ec7018648bce

    SHA1

    40de991e1b7eea6919f34c6b0d3af44d04d0a8bb

    SHA256

    2886fd36add64512255f48a6890e07873b4cb9a26810b0ff4ff4edfdf1446cb3

    SHA512

    a3ed8647c6fcc9427b0777e802a3b495c118785092b8b7dda56b5f6de3f6168c8b9d6a0886e304fcae314c15c905be61ce5f382ed8cdacc2d650db3222517383

  • C:\Users\Admin\AppData\Local\Temp\wdtqoi.vvu

    Filesize

    335KB

    MD5

    f1599514ab1aa9828f2b6889e1b10ac6

    SHA1

    787c41364405afd05d17dc0c8ac406a4c6ca205f

    SHA256

    3aea5bece72ee8e233cc492d6d972ddba1cc53048a7e8df6b4c2769d156a68ea

    SHA512

    5f26fda538e8fe3c9e957a587becb753d3127e1233c3fcc9372cb18924bffbdce28a4ca79dd7e6aa82eaabeb9a371a7e966898ee2b42c48a273f328baabde822

  • \Users\Admin\AppData\Local\Temp\mzhxcbw.exe

    Filesize

    167KB

    MD5

    70a1ce678280758e42b3ec7018648bce

    SHA1

    40de991e1b7eea6919f34c6b0d3af44d04d0a8bb

    SHA256

    2886fd36add64512255f48a6890e07873b4cb9a26810b0ff4ff4edfdf1446cb3

    SHA512

    a3ed8647c6fcc9427b0777e802a3b495c118785092b8b7dda56b5f6de3f6168c8b9d6a0886e304fcae314c15c905be61ce5f382ed8cdacc2d650db3222517383

  • \Users\Admin\AppData\Local\Temp\mzhxcbw.exe

    Filesize

    167KB

    MD5

    70a1ce678280758e42b3ec7018648bce

    SHA1

    40de991e1b7eea6919f34c6b0d3af44d04d0a8bb

    SHA256

    2886fd36add64512255f48a6890e07873b4cb9a26810b0ff4ff4edfdf1446cb3

    SHA512

    a3ed8647c6fcc9427b0777e802a3b495c118785092b8b7dda56b5f6de3f6168c8b9d6a0886e304fcae314c15c905be61ce5f382ed8cdacc2d650db3222517383

  • \Users\Admin\AppData\Local\Temp\mzhxcbw.exe

    Filesize

    167KB

    MD5

    70a1ce678280758e42b3ec7018648bce

    SHA1

    40de991e1b7eea6919f34c6b0d3af44d04d0a8bb

    SHA256

    2886fd36add64512255f48a6890e07873b4cb9a26810b0ff4ff4edfdf1446cb3

    SHA512

    a3ed8647c6fcc9427b0777e802a3b495c118785092b8b7dda56b5f6de3f6168c8b9d6a0886e304fcae314c15c905be61ce5f382ed8cdacc2d650db3222517383

  • memory/2812-9-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2812-16-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/3032-13-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3032-17-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3032-18-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3032-20-0x0000000074020000-0x000000007470E000-memory.dmp

    Filesize

    6.9MB

  • memory/3032-19-0x0000000001CF0000-0x0000000001D32000-memory.dmp

    Filesize

    264KB

  • memory/3032-21-0x0000000001D40000-0x0000000001D80000-memory.dmp

    Filesize

    256KB

  • memory/3032-22-0x0000000001D40000-0x0000000001D80000-memory.dmp

    Filesize

    256KB

  • memory/3032-24-0x0000000074020000-0x000000007470E000-memory.dmp

    Filesize

    6.9MB