Analysis

  • max time kernel
    147s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    11-05-2021 10:36

General

  • Target

    Frozen Seafood Specification BT vannamei shrimps mackerel supply data RFQ 3FCL 0086211052021.exe

  • Size

    940KB

  • MD5

    4239f6a01b20697056527dc5c5b33794

  • SHA1

    8c535c57e02423dd83f38225f0a2fbf517c558ea

  • SHA256

    d5c6e817e81a13cd55bf34551de9665821e3402bd4aa8c25ef302044502dc509

  • SHA512

    2792430bf7160e0067861dfc0e246048e035113af39f426ef4dd59b825bc610fb1cdcd83e70ae9d466d0b4cf65eade4c5eccb8bc8f7cac5c67417f7417c64aca

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.corroshield.co.id
  • Port:
    587
  • Username:
    procurement@corroshield.co.id
  • Password:
    kramatjati1945

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Frozen Seafood Specification BT vannamei shrimps mackerel supply data RFQ 3FCL 0086211052021.exe
    "C:\Users\Admin\AppData\Local\Temp\Frozen Seafood Specification BT vannamei shrimps mackerel supply data RFQ 3FCL 0086211052021.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:484
    • 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\Frozen Seafood Specification BT vannamei shrimps mackerel supply data RFQ 3FCL 0086211052021.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:332
    • C:\Users\Admin\AppData\Local\Temp\Frozen Seafood Specification BT vannamei shrimps mackerel supply data RFQ 3FCL 0086211052021.exe
      "C:\Users\Admin\AppData\Local\Temp\Frozen Seafood Specification BT vannamei shrimps mackerel supply data RFQ 3FCL 0086211052021.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:824

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/332-85-0x00000000060B0000-0x00000000060B1000-memory.dmp
    Filesize

    4KB

  • memory/332-86-0x00000000060E0000-0x00000000060E1000-memory.dmp
    Filesize

    4KB

  • memory/332-73-0x0000000004850000-0x0000000004851000-memory.dmp
    Filesize

    4KB

  • memory/332-110-0x000000007EF30000-0x000000007EF31000-memory.dmp
    Filesize

    4KB

  • memory/332-74-0x00000000024E0000-0x00000000024E1000-memory.dmp
    Filesize

    4KB

  • memory/332-65-0x0000000000000000-mapping.dmp
  • memory/332-109-0x0000000006310000-0x0000000006311000-memory.dmp
    Filesize

    4KB

  • memory/332-76-0x0000000004812000-0x0000000004813000-memory.dmp
    Filesize

    4KB

  • memory/332-108-0x0000000006300000-0x0000000006301000-memory.dmp
    Filesize

    4KB

  • memory/332-70-0x0000000075EF1000-0x0000000075EF3000-memory.dmp
    Filesize

    8KB

  • memory/332-94-0x00000000055D0000-0x00000000055D1000-memory.dmp
    Filesize

    4KB

  • memory/332-72-0x0000000001E90000-0x0000000001E91000-memory.dmp
    Filesize

    4KB

  • memory/332-93-0x0000000006290000-0x0000000006291000-memory.dmp
    Filesize

    4KB

  • memory/332-80-0x0000000005610000-0x0000000005611000-memory.dmp
    Filesize

    4KB

  • memory/332-77-0x0000000005240000-0x0000000005241000-memory.dmp
    Filesize

    4KB

  • memory/332-75-0x0000000004810000-0x0000000004811000-memory.dmp
    Filesize

    4KB

  • memory/484-64-0x00000000048A0000-0x000000000493B000-memory.dmp
    Filesize

    620KB

  • memory/484-59-0x00000000001E0000-0x00000000001E1000-memory.dmp
    Filesize

    4KB

  • memory/484-61-0x0000000000590000-0x0000000000594000-memory.dmp
    Filesize

    16KB

  • memory/484-62-0x0000000004F30000-0x0000000004F31000-memory.dmp
    Filesize

    4KB

  • memory/484-63-0x0000000005360000-0x0000000005435000-memory.dmp
    Filesize

    852KB

  • memory/824-67-0x000000000043764E-mapping.dmp
  • memory/824-71-0x0000000004B10000-0x0000000004B11000-memory.dmp
    Filesize

    4KB

  • memory/824-68-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/824-66-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB