Analysis

  • max time kernel
    71s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    30-03-2023 01:19

General

  • Target

    d3cbeafcefe0aa050926d93155a7b57664103941038a9bbeecd67d9668083a12.exe

  • Size

    803KB

  • MD5

    44c07bd69a021683184f99dc3f68e9b2

  • SHA1

    9c6068beda6210d80f8d1a3476a668d16a9a6f71

  • SHA256

    d3cbeafcefe0aa050926d93155a7b57664103941038a9bbeecd67d9668083a12

  • SHA512

    b399a6f629a83fc8841b48469c5ced59e210e327b23fe85af29558d1e064fca8cbeea56258cd050d77aa95a19ae48f6bdf82297bda9b320bcbf714c23fec5ddd

  • SSDEEP

    24576:if1Mv+YA3SmR6JPBOPZXIgaFHI/lpbxgyEtwCbxD:eMv+3SmR+chXT/lpbKyEtTx

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d3cbeafcefe0aa050926d93155a7b57664103941038a9bbeecd67d9668083a12.exe
    "C:\Users\Admin\AppData\Local\Temp\d3cbeafcefe0aa050926d93155a7b57664103941038a9bbeecd67d9668083a12.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1136
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nZmqoCkyaDrKjn.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1236
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nZmqoCkyaDrKjn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE679.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:564
    • C:\Users\Admin\AppData\Local\Temp\d3cbeafcefe0aa050926d93155a7b57664103941038a9bbeecd67d9668083a12.exe
      "C:\Users\Admin\AppData\Local\Temp\d3cbeafcefe0aa050926d93155a7b57664103941038a9bbeecd67d9668083a12.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1916

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE679.tmp

    Filesize

    1KB

    MD5

    00977b79ee0c3b58ba26a0b0f707789a

    SHA1

    b779c49ae32e815fdd2dd414a4abcfaee11e17aa

    SHA256

    8c19b2453126868a882cd32b155e5b21ed840db98b3d29683a893e78aa1c1ac6

    SHA512

    1c5c970326a6c0c97250806a3dd1955588007bf1dcadb2c9a9520a2f56cd4f9915ac4cd490f7bdd207abac5394a36623cdaae8fce4a2d74fa04f024624e3e5fa

  • memory/1136-55-0x0000000000510000-0x0000000000550000-memory.dmp

    Filesize

    256KB

  • memory/1136-56-0x0000000000470000-0x0000000000490000-memory.dmp

    Filesize

    128KB

  • memory/1136-57-0x0000000000510000-0x0000000000550000-memory.dmp

    Filesize

    256KB

  • memory/1136-58-0x0000000000500000-0x000000000050C000-memory.dmp

    Filesize

    48KB

  • memory/1136-59-0x0000000005E10000-0x0000000005EBA000-memory.dmp

    Filesize

    680KB

  • memory/1136-67-0x0000000000F10000-0x0000000000F42000-memory.dmp

    Filesize

    200KB

  • memory/1136-54-0x0000000001160000-0x0000000001230000-memory.dmp

    Filesize

    832KB

  • memory/1236-79-0x00000000022C0000-0x0000000002300000-memory.dmp

    Filesize

    256KB

  • memory/1236-81-0x00000000022C0000-0x0000000002300000-memory.dmp

    Filesize

    256KB

  • memory/1236-80-0x00000000022C0000-0x0000000002300000-memory.dmp

    Filesize

    256KB

  • memory/1916-69-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1916-71-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1916-73-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1916-75-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1916-77-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1916-78-0x0000000004CD0000-0x0000000004D10000-memory.dmp

    Filesize

    256KB

  • memory/1916-72-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1916-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1916-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1916-105-0x0000000004CD0000-0x0000000004D10000-memory.dmp

    Filesize

    256KB