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Analysis

  • max time kernel
    134s
  • 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
    14/01/2025, 01:23

General

  • Target

    a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe

  • Size

    982KB

  • MD5

    f1223e61e7123b96e3d7ac919c32f985

  • SHA1

    98db85562644048cd37596ca66d2b9d8035410c0

  • SHA256

    a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0

  • SHA512

    3f73233e25d1f8bd7cae75a11b3913429928a492ed087fe685e249799f7f9812a7258bf25f16adfc628f42ee6f68e53278159bc571bd94c85094ce9c58f7d420

  • SSDEEP

    12288:V5I0wXiC25YyzNTeO43a9pTpDXSu3LfH30xXgDFiZYKdD+o:XV1wab1DCkowDFi3D+o

Malware Config

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 1 IoCs
  • System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs

    Abuse InstallUtil to proxy execution of malicious code.

  • Executes dropped EXE 1 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 3 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe
    "C:\Users\Admin\AppData\Local\Temp\a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe"
    1⤵
    • System Binary Proxy Execution: InstallUtil
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4856
    • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
      "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    5d4073b2eb6d217c19f2b22f21bf8d57

    SHA1

    f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

    SHA256

    ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

    SHA512

    9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

  • memory/3836-22-0x0000000005440000-0x0000000005458000-memory.dmp

    Filesize

    96KB

  • memory/3836-19-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/3836-27-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/3836-26-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/3836-25-0x0000000006A30000-0x0000000006A3A000-memory.dmp

    Filesize

    40KB

  • memory/3836-24-0x0000000006A50000-0x0000000006AA0000-memory.dmp

    Filesize

    320KB

  • memory/3836-23-0x0000000005B00000-0x0000000005B66000-memory.dmp

    Filesize

    408KB

  • memory/3836-21-0x00000000055F0000-0x000000000568C000-memory.dmp

    Filesize

    624KB

  • memory/3836-14-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/3836-20-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/4856-7-0x0000000005840000-0x00000000058D2000-memory.dmp

    Filesize

    584KB

  • memory/4856-9-0x0000000006BC0000-0x0000000006C04000-memory.dmp

    Filesize

    272KB

  • memory/4856-8-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/4856-2-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/4856-18-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/4856-11-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/4856-1-0x0000000000590000-0x000000000068C000-memory.dmp

    Filesize

    1008KB

  • memory/4856-0-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

    Filesize

    4KB

  • memory/4856-12-0x0000000005970000-0x000000000597C000-memory.dmp

    Filesize

    48KB

  • memory/4856-6-0x0000000005D10000-0x00000000062B4000-memory.dmp

    Filesize

    5.6MB

  • memory/4856-5-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/4856-4-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

    Filesize

    4KB

  • memory/4856-3-0x0000000004F80000-0x0000000004F94000-memory.dmp

    Filesize

    80KB