Analysis

  • max time kernel
    111s
  • max time network
    69s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    15-04-2022 12:40

General

  • Target

    48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe

  • Size

    719KB

  • MD5

    1a3a0c8bdf1d6db781adc5d730668495

  • SHA1

    5a41a47ffbac1f5fb03520dd79dea0a1de22b00d

  • SHA256

    48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0

  • SHA512

    47f19026d24d1a7da6ab551f565bf3d2109109b23723228edfcb8a782407f0cdc1444abcc4651fdd62b1d51293469deca68f075a7eaa59ac5dde945abb9d7693

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Meta Stealer Stealer

    Meta Stealer steals passwords stored in browsers, written in C++.

  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe
    "C:\Users\Admin\AppData\Local\Temp\48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3984
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jNBsvPueSVkAdn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD9A7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4164
    • C:\Users\Admin\AppData\Local\Temp\48acb8f8ec73ee09270a98abbce5091670405ac28ec5016d5cfcfe8439b15eb0.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:440

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD9A7.tmp

    Filesize

    1KB

    MD5

    3d60878992c431939b55606df1a80070

    SHA1

    0872f79507ea9cb9ad98907881c3a87c3320c13d

    SHA256

    bf4eaeb0cd6516eec6ed8e139f853ba9f4c7f6ac1cb031c95edddfca29a5fafe

    SHA512

    30cff76454b96089040d2eca3851a28b733165a292b1a187c1e5bea52382437f8e81aba2c78af14dddcd69c95bc99835d4d4540494f3616d65e1287b11d2337d

  • memory/440-139-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/440-140-0x0000000005D90000-0x0000000005DF6000-memory.dmp

    Filesize

    408KB

  • memory/3984-130-0x00000000002C0000-0x000000000037A000-memory.dmp

    Filesize

    744KB

  • memory/3984-131-0x00000000079E0000-0x0000000007F84000-memory.dmp

    Filesize

    5.6MB

  • memory/3984-132-0x00000000075D0000-0x0000000007662000-memory.dmp

    Filesize

    584KB

  • memory/3984-133-0x0000000007580000-0x000000000758A000-memory.dmp

    Filesize

    40KB

  • memory/3984-134-0x000000000B350000-0x000000000B87C000-memory.dmp

    Filesize

    5.2MB

  • memory/3984-135-0x000000000B9C0000-0x000000000BA5C000-memory.dmp

    Filesize

    624KB