Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-06-2024 17:02

General

  • Target

    FACTURA09654700.exe

  • Size

    1.0MB

  • MD5

    aed00ff3e85dbf1bbf99939966939b3a

  • SHA1

    d02a5bc420207a7958e34a4740968439969f5b19

  • SHA256

    b772162c5b510c5427be045abfdc43c29756217e2ed924ce4c4388bd457a4987

  • SHA512

    08ad4f11a67a9e8228d83e96fbcccd98910d53ff2929e2d70d336b8e808d4d7e37f90d157e2747b744eb19b451aba2a0985022207a68ff50dcbd8cdef5e1f50a

  • SSDEEP

    24576:HAHnh+eWsN3skA4RV1Hom2KXMmHauOVaz7jxokZf4vFEGR5:6h+ZkldoPK8YauOIzHxokZfqFEo

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.antoniomayol.com:21
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    cMhKDQUk1{;%

Signatures

  • AgentTesla

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FACTURA09654700.exe
    "C:\Users\Admin\AppData\Local\Temp\FACTURA09654700.exe"
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4468
    • C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe
      "C:\Users\Admin\AppData\Local\Temp\FACTURA09654700.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3420
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\FACTURA09654700.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2312
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4328,i,11749492925348081608,8895412282206755658,262144 --variations-seed-version --mojo-platform-channel-handle=4148 /prefetch:8
    1⤵
      PID:5064

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\benting

      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe

      Filesize

      1.0MB

      MD5

      aed00ff3e85dbf1bbf99939966939b3a

      SHA1

      d02a5bc420207a7958e34a4740968439969f5b19

      SHA256

      b772162c5b510c5427be045abfdc43c29756217e2ed924ce4c4388bd457a4987

      SHA512

      08ad4f11a67a9e8228d83e96fbcccd98910d53ff2929e2d70d336b8e808d4d7e37f90d157e2747b744eb19b451aba2a0985022207a68ff50dcbd8cdef5e1f50a

    • memory/2312-31-0x0000000004A80000-0x0000000004AE6000-memory.dmp

      Filesize

      408KB

    • memory/2312-28-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2312-29-0x00000000753FE000-0x00000000753FF000-memory.dmp

      Filesize

      4KB

    • memory/2312-30-0x00000000050C0000-0x0000000005664000-memory.dmp

      Filesize

      5.6MB

    • memory/2312-32-0x00000000753F0000-0x0000000075BA0000-memory.dmp

      Filesize

      7.7MB

    • memory/2312-33-0x0000000005E70000-0x0000000005EC0000-memory.dmp

      Filesize

      320KB

    • memory/2312-34-0x0000000005F60000-0x0000000005FF2000-memory.dmp

      Filesize

      584KB

    • memory/2312-35-0x0000000005F00000-0x0000000005F0A000-memory.dmp

      Filesize

      40KB

    • memory/2312-36-0x00000000753FE000-0x00000000753FF000-memory.dmp

      Filesize

      4KB

    • memory/2312-37-0x00000000753F0000-0x0000000075BA0000-memory.dmp

      Filesize

      7.7MB

    • memory/4468-10-0x00000000027B0000-0x00000000027B4000-memory.dmp

      Filesize

      16KB