Analysis

  • max time kernel
    123s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 02:08

General

  • Target

    HOUSE_PI.exe

  • Size

    892KB

  • MD5

    5bdf485867aa3d87b494be177e7c98da

  • SHA1

    3201fd68704cfa89e9f32f807cb1cdf4bf39bc45

  • SHA256

    ba99ebdbb38769a5fce130e0a16cd0c2aa0380cfc4ec5dd257dcadcdcea69ee4

  • SHA512

    214e0b6a6d95243587e6df856095180d9d475536d2a01b52573f389a38d1659c94747a51cae51c7748e19d7455549efac0f3c4efcb82a51d09687b2273621f42

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    cruizjamesvhjkl@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HOUSE_PI.exe
    "C:\Users\Admin\AppData\Local\Temp\HOUSE_PI.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YSyeaKfvcL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp27BD.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1772
    • C:\Users\Admin\AppData\Local\Temp\HOUSE_PI.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:844

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\Temp\tmp27BD.tmp
    Filesize

    1KB

    MD5

    faff45790f7332f4a4448646327c9298

    SHA1

    70541a12ee91dcd6cb075266878a0238a26b60c7

    SHA256

    4d7702be18ec893168148321222f6798022809c0ae1f2d5286279458ab36dc0a

    SHA512

    76961792d8e20b60cd564dfabf7be7687301456a2961fa6fa49f9fe6b4db2b0f5fc1bc8ecb5f41ee8471e52ce94bac2575d9457dc82ef3a46cfe54cd0110009d

  • memory/844-64-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/844-60-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/844-61-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/844-63-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/844-65-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/844-66-0x00000000004468DE-mapping.dmp
  • memory/844-68-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/844-70-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1772-58-0x0000000000000000-mapping.dmp
  • memory/1808-56-0x0000000000FA0000-0x0000000000FF4000-memory.dmp
    Filesize

    336KB

  • memory/1808-57-0x0000000075451000-0x0000000075453000-memory.dmp
    Filesize

    8KB

  • memory/1808-55-0x0000000000540000-0x000000000054A000-memory.dmp
    Filesize

    40KB

  • memory/1808-54-0x0000000001120000-0x0000000001206000-memory.dmp
    Filesize

    920KB