Analysis

  • max time kernel
    104s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    30-07-2021 15:25

General

  • Target

    69a43a40f02660c2065fe3b76861dab28cc292301c180f1eafbf6c3f7b57afe5.exe

  • Size

    1.1MB

  • MD5

    1735796a48ffa604112d7e14856a594c

  • SHA1

    ee60792f75050256e850d3e4330327e0c51c951c

  • SHA256

    69a43a40f02660c2065fe3b76861dab28cc292301c180f1eafbf6c3f7b57afe5

  • SHA512

    0eae5f9dc4a14122f76195cc66d4e5f985dbd2ba27062c8e6c5afd333fcc8ec4b9b21cd1385fe55ab95789e9ee34d11657fa3dd7c18926c7e3e557860fcd3e74

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    23456789@@@@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69a43a40f02660c2065fe3b76861dab28cc292301c180f1eafbf6c3f7b57afe5.exe
    "C:\Users\Admin\AppData\Local\Temp\69a43a40f02660c2065fe3b76861dab28cc292301c180f1eafbf6c3f7b57afe5.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:836
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\69a43a40f02660c2065fe3b76861dab28cc292301c180f1eafbf6c3f7b57afe5.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:532
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DwHZIgiTHfiOky.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:112
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DwHZIgiTHfiOky" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD49D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:556
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DwHZIgiTHfiOky.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1684
    • C:\Users\Admin\AppData\Local\Temp\69a43a40f02660c2065fe3b76861dab28cc292301c180f1eafbf6c3f7b57afe5.exe
      "C:\Users\Admin\AppData\Local\Temp\69a43a40f02660c2065fe3b76861dab28cc292301c180f1eafbf6c3f7b57afe5.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1216

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/112-86-0x0000000001EC2000-0x0000000001EC3000-memory.dmp

    Filesize

    4KB

  • memory/112-85-0x0000000001EC0000-0x0000000001EC1000-memory.dmp

    Filesize

    4KB

  • memory/532-68-0x0000000004720000-0x0000000004721000-memory.dmp

    Filesize

    4KB

  • memory/532-84-0x00000000046E2000-0x00000000046E3000-memory.dmp

    Filesize

    4KB

  • memory/532-82-0x00000000046E0000-0x00000000046E1000-memory.dmp

    Filesize

    4KB

  • memory/532-87-0x0000000004690000-0x0000000004691000-memory.dmp

    Filesize

    4KB

  • memory/532-92-0x0000000005240000-0x0000000005241000-memory.dmp

    Filesize

    4KB

  • memory/532-67-0x0000000000790000-0x0000000000791000-memory.dmp

    Filesize

    4KB

  • memory/532-66-0x0000000076661000-0x0000000076663000-memory.dmp

    Filesize

    8KB

  • memory/836-64-0x0000000000A50000-0x0000000000A89000-memory.dmp

    Filesize

    228KB

  • memory/836-59-0x0000000001040000-0x0000000001041000-memory.dmp

    Filesize

    4KB

  • memory/836-63-0x0000000005AA0000-0x0000000005B1A000-memory.dmp

    Filesize

    488KB

  • memory/836-62-0x00000000008B0000-0x00000000008CB000-memory.dmp

    Filesize

    108KB

  • memory/836-61-0x0000000007400000-0x0000000007401000-memory.dmp

    Filesize

    4KB

  • memory/1216-77-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1216-80-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1216-95-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

    Filesize

    4KB

  • memory/1684-114-0x00000000063C0000-0x00000000063C1000-memory.dmp

    Filesize

    4KB

  • memory/1684-137-0x0000000006450000-0x0000000006451000-memory.dmp

    Filesize

    4KB

  • memory/1684-136-0x0000000006440000-0x0000000006441000-memory.dmp

    Filesize

    4KB

  • memory/1684-107-0x0000000006220000-0x0000000006221000-memory.dmp

    Filesize

    4KB

  • memory/1684-106-0x00000000061C0000-0x00000000061C1000-memory.dmp

    Filesize

    4KB

  • memory/1684-102-0x000000007EF30000-0x000000007EF31000-memory.dmp

    Filesize

    4KB

  • memory/1684-100-0x0000000006120000-0x0000000006121000-memory.dmp

    Filesize

    4KB

  • memory/1684-97-0x0000000002040000-0x0000000002C8A000-memory.dmp

    Filesize

    12.3MB

  • memory/1684-121-0x00000000060E0000-0x00000000060E1000-memory.dmp

    Filesize

    4KB

  • memory/1684-96-0x0000000002040000-0x0000000002C8A000-memory.dmp

    Filesize

    12.3MB