Analysis

  • max time kernel
    135s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    27-07-2021 16:33

General

  • Target

    fa322b962d854050adb6c6546f7aaed5.exe

  • Size

    684KB

  • MD5

    fa322b962d854050adb6c6546f7aaed5

  • SHA1

    b1c7f9e0cf2d4c99175bc38fb4d12d34858e5bea

  • SHA256

    cd043324499b97f0bfcd00d02c0a094aa6d8f4b33f5cd80d94ebf92445f8dc02

  • SHA512

    0a128ee744ed52a9a58ea2136b09e18b90f856a19ee4608ac995a49ecee807c7ff3f8a8f2bd0d313d79e43e7cf4ea14aa33f4e2bcfd540e8bd28043633ff4b9d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    dutchgardenfoodservices@saleperson.icu
  • Password:
    GOODGOD1234

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa322b962d854050adb6c6546f7aaed5.exe
    "C:\Users\Admin\AppData\Local\Temp\fa322b962d854050adb6c6546f7aaed5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4796
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OCdOwh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDDAF.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:852
    • C:\Users\Admin\AppData\Local\Temp\fa322b962d854050adb6c6546f7aaed5.exe
      "C:\Users\Admin\AppData\Local\Temp\fa322b962d854050adb6c6546f7aaed5.exe"
      2⤵
        PID:1084
      • C:\Users\Admin\AppData\Local\Temp\fa322b962d854050adb6c6546f7aaed5.exe
        "C:\Users\Admin\AppData\Local\Temp\fa322b962d854050adb6c6546f7aaed5.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1148

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fa322b962d854050adb6c6546f7aaed5.exe.log
      MD5

      c3cc52ccca9ff2b6fa8d267fc350ca6b

      SHA1

      a68d4028333296d222e4afd75dea36fdc98d05f3

      SHA256

      3125b6071e2d78f575a06ed7ac32a83d9262ae64d1fa81ac43e8bfc1ef157c0e

      SHA512

      b0c7b2501b1a2c559795a9d178c0bbda0e03cbdbaaa2c4330ac1202a55373fe1b742078adcfa915bd6e805565a2daa6d35d64ef7a14ffcd09069f9ea6a691cc7

    • C:\Users\Admin\AppData\Local\Temp\tmpDDAF.tmp
      MD5

      abca324d6ca3b31f4bb7a20d38f11f69

      SHA1

      06d21f0f8482e81818479214ed81ffdc16f0f3d9

      SHA256

      dfd1e73afeee141a035144deed6dfeb04882c57da8a1b79da0979ecbaa5a5966

      SHA512

      5dca57b0ae4b18e445f611e29f1719495c6c357d84d4b600a6b5b46e0c9e2dd4962433cbb891df91280b1108e563cdadce10ded52fb657d9eb57d86cb1c56359

    • memory/852-124-0x0000000000000000-mapping.dmp
    • memory/1148-135-0x0000000005A40000-0x0000000005A41000-memory.dmp
      Filesize

      4KB

    • memory/1148-134-0x0000000005280000-0x0000000005281000-memory.dmp
      Filesize

      4KB

    • memory/1148-133-0x0000000004DC0000-0x0000000004DC1000-memory.dmp
      Filesize

      4KB

    • memory/1148-127-0x00000000004374AE-mapping.dmp
    • memory/1148-126-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/4796-119-0x00000000057F0000-0x00000000057F1000-memory.dmp
      Filesize

      4KB

    • memory/4796-123-0x0000000007F50000-0x0000000007F8D000-memory.dmp
      Filesize

      244KB

    • memory/4796-122-0x0000000007EC0000-0x0000000007F42000-memory.dmp
      Filesize

      520KB

    • memory/4796-121-0x0000000007340000-0x000000000734B000-memory.dmp
      Filesize

      44KB

    • memory/4796-120-0x0000000005750000-0x00000000057E2000-memory.dmp
      Filesize

      584KB

    • memory/4796-114-0x0000000000F10000-0x0000000000F11000-memory.dmp
      Filesize

      4KB

    • memory/4796-118-0x00000000058D0000-0x00000000058D1000-memory.dmp
      Filesize

      4KB

    • memory/4796-117-0x0000000005830000-0x0000000005831000-memory.dmp
      Filesize

      4KB

    • memory/4796-116-0x0000000005D30000-0x0000000005D31000-memory.dmp
      Filesize

      4KB