Analysis

  • max time kernel
    103s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-04-2024 01:21

General

  • Target

    57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe

  • Size

    793KB

  • MD5

    6d8956d9cae243960df063e4f013e9fe

  • SHA1

    76cb0d216284c376673b1884a97c62607707b0d2

  • SHA256

    57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454

  • SHA512

    0a38fc3b769b1f483c25f9c7541e3de3312bcdc11c5d4fd682daa5eea6f88cea7569c99c3fb8efac29ce28fffa83d6d8ac0deb4ccb1a2bc75fb24b3b07003afa

  • SSDEEP

    12288:OcfTKzwegGpILkDg2FXUQZrQXmTRJ286yiDrs6+xTxJmM+TgkWNS7IFvUrE:OsIwegGpQkPFwu68pi86+xTx0M6g0u+E

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    1.$.#t~cK;4C

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    1.$.#t~cK;4C

Signatures

  • AgentTesla

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

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Windows security modification 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Looks up external IP address via web service 3 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe
    "C:\Users\Admin\AppData\Local\Temp\57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4296
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4656
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2148

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2hg3jieh.de5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2148-18-0x00000000057A0000-0x0000000005D44000-memory.dmp

    Filesize

    5.6MB

  • memory/2148-29-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/2148-28-0x0000000006760000-0x000000000676A000-memory.dmp

    Filesize

    40KB

  • memory/2148-27-0x00000000067B0000-0x0000000006842000-memory.dmp

    Filesize

    584KB

  • memory/2148-4-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/2148-26-0x00000000066C0000-0x0000000006710000-memory.dmp

    Filesize

    320KB

  • memory/2148-21-0x0000000005390000-0x00000000053F6000-memory.dmp

    Filesize

    408KB

  • memory/2148-20-0x0000000005310000-0x0000000005320000-memory.dmp

    Filesize

    64KB

  • memory/2148-19-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4296-25-0x00007FFF76DC0000-0x00007FFF77881000-memory.dmp

    Filesize

    10.8MB

  • memory/4296-0-0x0000019A664A0000-0x0000019A664C6000-memory.dmp

    Filesize

    152KB

  • memory/4296-3-0x0000019A68220000-0x0000019A682C8000-memory.dmp

    Filesize

    672KB

  • memory/4296-2-0x0000019A68BA0000-0x0000019A68BB0000-memory.dmp

    Filesize

    64KB

  • memory/4296-1-0x00007FFF76DC0000-0x00007FFF77881000-memory.dmp

    Filesize

    10.8MB

  • memory/4656-17-0x000001EE3F640000-0x000001EE3F650000-memory.dmp

    Filesize

    64KB

  • memory/4656-16-0x000001EE3F640000-0x000001EE3F650000-memory.dmp

    Filesize

    64KB

  • memory/4656-11-0x000001EE3F6A0000-0x000001EE3F6C2000-memory.dmp

    Filesize

    136KB

  • memory/4656-24-0x00007FFF76DC0000-0x00007FFF77881000-memory.dmp

    Filesize

    10.8MB

  • memory/4656-12-0x00007FFF76DC0000-0x00007FFF77881000-memory.dmp

    Filesize

    10.8MB