Analysis

  • max time kernel
    141s
  • max time network
    102s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    29-01-2021 18:23

General

  • Target

    x56cabmancr.exe

  • Size

    954KB

  • MD5

    dccdd80a837c0fde13e1e39a65fc6c36

  • SHA1

    d7c092eb1f3e8f75253e06745c567787fceda3d7

  • SHA256

    35fe897b8b1d0328d99b94ec0e22de210bc3f0564a8e34a438f313fc202db999

  • SHA512

    1e84b970f30355d60d4c728d7abed3e75b0c94bb1ffa408f4c1cf7bf23c2c0e5a467e8423431dcf643544c54762df2d0db6386aa66e85cbef5b321e0f4218248

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.rdnsanom.xyz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    U0ywtd~f*M1:

Signatures

  • AgentTesla

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

  • AgentTesla Payload 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\x56cabmancr.exe
    "C:\Users\Admin\AppData\Local\Temp\x56cabmancr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Users\Admin\AppData\Local\Temp\x56cabmancr.exe
      "C:\Users\Admin\AppData\Local\Temp\x56cabmancr.exe"
      2⤵
        PID:3284
      • C:\Users\Admin\AppData\Local\Temp\x56cabmancr.exe
        "C:\Users\Admin\AppData\Local\Temp\x56cabmancr.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3408

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\x56cabmancr.exe.log
      MD5

      90acfd72f14a512712b1a7380c0faf60

      SHA1

      40ba4accb8faa75887e84fb8e38d598dc8cf0f12

      SHA256

      20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

      SHA512

      29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

    • memory/3408-13-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/3408-26-0x00000000050C1000-0x00000000050C2000-memory.dmp
      Filesize

      4KB

    • memory/3408-23-0x0000000005BC0000-0x0000000005BC1000-memory.dmp
      Filesize

      4KB

    • memory/3408-22-0x0000000005090000-0x0000000005091000-memory.dmp
      Filesize

      4KB

    • memory/3408-21-0x00000000050C0000-0x00000000050C1000-memory.dmp
      Filesize

      4KB

    • memory/3408-16-0x00000000739D0000-0x00000000740BE000-memory.dmp
      Filesize

      6.9MB

    • memory/3408-14-0x00000000004375DE-mapping.dmp
    • memory/4804-7-0x0000000004AC0000-0x0000000004AC1000-memory.dmp
      Filesize

      4KB

    • memory/4804-12-0x00000000057D0000-0x0000000005883000-memory.dmp
      Filesize

      716KB

    • memory/4804-11-0x0000000004C80000-0x0000000004C83000-memory.dmp
      Filesize

      12KB

    • memory/4804-10-0x0000000004CA0000-0x0000000004CA1000-memory.dmp
      Filesize

      4KB

    • memory/4804-9-0x0000000004C20000-0x0000000004C21000-memory.dmp
      Filesize

      4KB

    • memory/4804-8-0x0000000004920000-0x0000000004921000-memory.dmp
      Filesize

      4KB

    • memory/4804-2-0x00000000739D0000-0x00000000740BE000-memory.dmp
      Filesize

      6.9MB

    • memory/4804-6-0x0000000004F20000-0x0000000004F21000-memory.dmp
      Filesize

      4KB

    • memory/4804-5-0x0000000004930000-0x0000000004931000-memory.dmp
      Filesize

      4KB

    • memory/4804-3-0x0000000000020000-0x0000000000021000-memory.dmp
      Filesize

      4KB