Analysis

  • max time kernel
    137s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-10-2024 19:31

General

  • Target

    bf5d70ca2faf355d86f4b40b58032f21e99c3944b1c5e199b9bb728258a95c1b.exe

  • Size

    99KB

  • MD5

    369f704a2f7482c34be13941454e57c9

  • SHA1

    343cff02d08a56f75d76052d541a21ba39081d8a

  • SHA256

    bf5d70ca2faf355d86f4b40b58032f21e99c3944b1c5e199b9bb728258a95c1b

  • SHA512

    43fdb5bc0d8fadfa5b778639dd99ce767834c19b935f20607029ced8995f73fb408f01398a7014b33749355d2d6542df203bdf96660345df2ec38eeade5578d4

  • SSDEEP

    1536:6OrgQySDTYowOxhyR999vAFH/N1k7SZCHvqxuV/QHzw4iQMTqncAd8zul:QGMt999vUHF5ZCHvguV/QHzw2MTqFas

Malware Config

Extracted

Family

exelastealer

C2

https://discord.com/api/webhooks/1152920158470414406/e6cZMhR2c46WKJhAHuxbkYiUUJtxA61zPHZaJSHYHMBE8RWYV1mQZ1ZfleRCDXbyLf_t

Signatures

  • Exela Stealer

    Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

  • Exelastealer family
  • Reads user/profile data of web browsers 3 TTPs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf5d70ca2faf355d86f4b40b58032f21e99c3944b1c5e199b9bb728258a95c1b.exe
    "C:\Users\Admin\AppData\Local\Temp\bf5d70ca2faf355d86f4b40b58032f21e99c3944b1c5e199b9bb728258a95c1b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2728
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic" path win32_VideoController get name
      2⤵
      • System Location Discovery: System Language Discovery
      • Detects videocard installed
      • Suspicious use of AdjustPrivilegeToken
      PID:2912
    • C:\Windows\SysWOW64\attrib.exe
      "attrib" +h +s "C:\Users\Admin\AppData\Local\Exela"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:4176
    • C:\Windows\SysWOW64\attrib.exe
      "attrib" +h +s "C:\Users\Admin\AppData\Local\Exela\Exela.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:2492
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /f /sc onlogon /rl highest /tn "AutoUpdateCheckerOnLogon" /tr "C:\Users\Admin\AppData\Local\Exela\Exela.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3100
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /f /sc hourly /mo 1 /rl highest /tn "AutoUpdateCheckerHourly" /tr "C:\Users\Admin\AppData\Local\Exela\Exela.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3364
    • C:\Windows\SysWOW64\netsh.exe
      "netsh" wlan show profiles
      2⤵
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Wi-Fi Discovery
      PID:4960
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 1928
      2⤵
      • Program crash
      PID:5064
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2728 -ip 2728
    1⤵
      PID:3312

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Exela\Exela.exe

      Filesize

      99KB

      MD5

      369f704a2f7482c34be13941454e57c9

      SHA1

      343cff02d08a56f75d76052d541a21ba39081d8a

      SHA256

      bf5d70ca2faf355d86f4b40b58032f21e99c3944b1c5e199b9bb728258a95c1b

      SHA512

      43fdb5bc0d8fadfa5b778639dd99ce767834c19b935f20607029ced8995f73fb408f01398a7014b33749355d2d6542df203bdf96660345df2ec38eeade5578d4

    • memory/2728-0-0x000000007518E000-0x000000007518F000-memory.dmp

      Filesize

      4KB

    • memory/2728-1-0x0000000000D40000-0x0000000000D5C000-memory.dmp

      Filesize

      112KB

    • memory/2728-2-0x0000000005520000-0x000000000552A000-memory.dmp

      Filesize

      40KB

    • memory/2728-3-0x00000000055A0000-0x0000000005606000-memory.dmp

      Filesize

      408KB

    • memory/2728-4-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB

    • memory/2728-7-0x0000000006120000-0x0000000006170000-memory.dmp

      Filesize

      320KB

    • memory/2728-8-0x00000000061F0000-0x0000000006266000-memory.dmp

      Filesize

      472KB

    • memory/2728-30-0x00000000061B0000-0x00000000061CE000-memory.dmp

      Filesize

      120KB

    • memory/2728-43-0x0000000075180000-0x0000000075930000-memory.dmp

      Filesize

      7.7MB