Analysis

  • max time kernel
    108s
  • max time network
    15s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    30-07-2021 15:25

General

  • Target

    87597.exe

  • Size

    704KB

  • MD5

    7e19235ca4a6192bdace52baa0a40d26

  • SHA1

    1ac8aa96052b0da4f7d1072ca8fee01ade2e9f71

  • SHA256

    ed762437d06ffae4d27baec39379997d8acf7ae6e6e758611793f3fb2fafcee1

  • SHA512

    a67be81bf2487babe021184427d47004791fca072b93ea61efa40d81680132ffcbd96cd78a00a8f316be50d5308ce1d5f2b29dc19be32e91a74a65a63c7705a0

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.badonfashoin.com/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    kKsIA9XNV2zG

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Adds Run key to start application 2 TTPs 1 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 3 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\87597.exe
    "C:\Users\Admin\AppData\Local\Temp\87597.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\emoGDf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp741.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:960
    • C:\Users\Admin\AppData\Local\Temp\87597.exe
      "C:\Users\Admin\AppData\Local\Temp\87597.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:1688

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp741.tmp

    MD5

    ecde5ed2471122d09c320f97a8711098

    SHA1

    45a1489f61f2373b6dc3d9515348ae5440eade6e

    SHA256

    bef5ea3be9a7648156b773e67a33d1eb4b0abe2f578731751c2f1a6abc33483e

    SHA512

    a80eb4a5c6d0d79c29d00d8fd905ebec95e25171f847bbe75fea4b71cce7364e256b8a741dd7b8ba4c26ec3beada0e1218d188c41564ab66bb9a8463ebd616ec

  • memory/960-65-0x0000000000000000-mapping.dmp

  • memory/1688-68-0x00000000004374AE-mapping.dmp

  • memory/1688-67-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1688-69-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1688-71-0x00000000046E0000-0x00000000046E1000-memory.dmp

    Filesize

    4KB

  • memory/2004-59-0x00000000008A0000-0x00000000008A1000-memory.dmp

    Filesize

    4KB

  • memory/2004-61-0x0000000004840000-0x0000000004841000-memory.dmp

    Filesize

    4KB

  • memory/2004-62-0x00000000002E0000-0x00000000002FB000-memory.dmp

    Filesize

    108KB

  • memory/2004-63-0x0000000005740000-0x00000000057C0000-memory.dmp

    Filesize

    512KB

  • memory/2004-64-0x0000000001EF0000-0x0000000001F2C000-memory.dmp

    Filesize

    240KB