Analysis

  • max time kernel
    180s
  • max time network
    185s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:26

General

  • Target

    AWB#5421457894.exe

  • Size

    676KB

  • MD5

    fb20529923ea7480ca21d00fce76c327

  • SHA1

    46dada6d2eda24b9d9baa954dcad8860a8848126

  • SHA256

    c01176f8ccb757f80cb32c809cfe0ceec9e100b199d4beec5f92adb824517869

  • SHA512

    be795350060e13318700330966fc710d954fb58be47b2654ceb8a19cce251ac539e3d6e6549a4e25835f2e43c33b62cfefbcda6ddbadff6a337d571c744096ed

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    babakings32

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AWB#5421457894.exe
    "C:\Users\Admin\AppData\Local\Temp\AWB#5421457894.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4564
    • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
      "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4724

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

    Filesize

    42KB

    MD5

    9827ff3cdf4b83f9c86354606736ca9c

    SHA1

    e73d73f42bb2a310f03eb1bcbb22be2b8eb7c723

    SHA256

    c1cf3dc8fa1c7fc00f88e07ad539979b3706ca8d69223cffd1d58bc8f521f63a

    SHA512

    8261828d55f3b5134c0aeb98311c04e20c5395d4347251746f3be0fb854f36cc7e118713cd00c9867537e6e47d5e71f2b2384fc00c67f0ae1b285b8310321579

  • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

    Filesize

    42KB

    MD5

    9827ff3cdf4b83f9c86354606736ca9c

    SHA1

    e73d73f42bb2a310f03eb1bcbb22be2b8eb7c723

    SHA256

    c1cf3dc8fa1c7fc00f88e07ad539979b3706ca8d69223cffd1d58bc8f521f63a

    SHA512

    8261828d55f3b5134c0aeb98311c04e20c5395d4347251746f3be0fb854f36cc7e118713cd00c9867537e6e47d5e71f2b2384fc00c67f0ae1b285b8310321579

  • memory/4564-130-0x0000000000170000-0x0000000000220000-memory.dmp

    Filesize

    704KB

  • memory/4564-131-0x0000000005990000-0x0000000005F34000-memory.dmp

    Filesize

    5.6MB

  • memory/4564-132-0x00000000054D0000-0x0000000005562000-memory.dmp

    Filesize

    584KB

  • memory/4564-133-0x0000000005670000-0x00000000056B4000-memory.dmp

    Filesize

    272KB

  • memory/4724-134-0x0000000000000000-mapping.dmp

  • memory/4724-135-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/4724-138-0x0000000005910000-0x00000000059AC000-memory.dmp

    Filesize

    624KB

  • memory/4724-139-0x0000000005B20000-0x0000000005B86000-memory.dmp

    Filesize

    408KB

  • memory/4724-140-0x0000000006D40000-0x0000000006D90000-memory.dmp

    Filesize

    320KB

  • memory/4724-141-0x0000000006BD0000-0x0000000006BDA000-memory.dmp

    Filesize

    40KB