Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06/03/2024, 13:49

General

  • Target

    Ammsjehiorr.exe

  • Size

    731KB

  • MD5

    8700cc5884c50cc4beb338d302b19d38

  • SHA1

    e86280a55b25942737dcb66a400251a1abfabe7b

  • SHA256

    c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674

  • SHA512

    b959376e839a7662b77fac3bc72a7761c693a82f7e459342b8b882b69b7fd208cc3c65304022a27d576b20b61da21c7cbcaff447db9c01f2ce359811ef17a5de

  • SSDEEP

    12288:ZrcUg+DA28oxaWyF95HY66HuUSzjApbhtWNvKecIN8dh+yiRBiwR2n+R:ZrcU7Afoxy/5Tfv4IN8dnwG+R

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 34 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • 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 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ammsjehiorr.exe
    "C:\Users\Admin\AppData\Local\Temp\Ammsjehiorr.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2168
    • C:\Users\Admin\AppData\Local\Temp\Ammsjehiorr.exe
      C:\Users\Admin\AppData\Local\Temp\Ammsjehiorr.exe
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1968-1134-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1968-1139-0x0000000004A90000-0x0000000004AD0000-memory.dmp

    Filesize

    256KB

  • memory/1968-1138-0x0000000073E40000-0x000000007452E000-memory.dmp

    Filesize

    6.9MB

  • memory/1968-1136-0x0000000004A90000-0x0000000004AD0000-memory.dmp

    Filesize

    256KB

  • memory/1968-1135-0x0000000073E40000-0x000000007452E000-memory.dmp

    Filesize

    6.9MB

  • memory/2168-46-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-60-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-10-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-12-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-14-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-16-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-18-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-22-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-20-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-26-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-24-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-28-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-30-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-32-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-34-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-36-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-48-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-0-0x0000000000930000-0x00000000009EE000-memory.dmp

    Filesize

    760KB

  • memory/2168-50-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-44-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-52-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-8-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-58-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-56-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-54-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-62-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-42-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-64-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-40-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-66-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-38-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-1117-0x00000000002A0000-0x00000000002E0000-memory.dmp

    Filesize

    256KB

  • memory/2168-1118-0x0000000000280000-0x0000000000281000-memory.dmp

    Filesize

    4KB

  • memory/2168-1119-0x00000000008A0000-0x00000000008E2000-memory.dmp

    Filesize

    264KB

  • memory/2168-1120-0x0000000001F80000-0x0000000001FCC000-memory.dmp

    Filesize

    304KB

  • memory/2168-1130-0x0000000073EC0000-0x00000000745AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2168-6-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-4-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-3-0x00000000041D0000-0x0000000004283000-memory.dmp

    Filesize

    716KB

  • memory/2168-2-0x00000000041D0000-0x0000000004288000-memory.dmp

    Filesize

    736KB

  • memory/2168-1-0x0000000073EC0000-0x00000000745AE000-memory.dmp

    Filesize

    6.9MB