Analysis

  • max time kernel
    153s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 01:26

General

  • Target

    po no 10389 & 10390 - for 2 orders together.exe

  • Size

    660KB

  • MD5

    3e68b7ef28a3025b722831cd624cb2a8

  • SHA1

    e176e6b0a34ecc203f30813e54a1ab8325297ab3

  • SHA256

    37e399fce2caa80c9ea931f693b51a6d1c11464df1ead916cfca67f6100ad71f

  • SHA512

    31fde62880b3e11a97832e09173231a2f0b9fe035cf04b705fd658be6439b7ffe16711e4fb1b2226b3dd440c1c7bbbcd243f4795cec03c34f8cc6e80edcaf857

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    gnaeask@2015

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\po no 10389 & 10390 - for 2 orders together.exe
    "C:\Users\Admin\AppData\Local\Temp\po no 10389 & 10390 - for 2 orders together.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xbhONTmkRh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp96D4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1072
    • C:\Users\Admin\AppData\Local\Temp\po no 10389 & 10390 - for 2 orders together.exe
      "C:\Users\Admin\AppData\Local\Temp\po no 10389 & 10390 - for 2 orders together.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:580

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp96D4.tmp

    Filesize

    1KB

    MD5

    533f21a1409d2adc407ec5647b3ad50e

    SHA1

    75621f8193ff81cd67e9146f3d4c97bc33080ce4

    SHA256

    2be8d4fa15469d779ec70bf884439dab267f5f3c2f78e6c1eb6babcda60df4eb

    SHA512

    4341a271255390032ddaf1f9f3a00811802de4365f1b1c920d3f1fb84b35faa85677cdf9d22baa5e8e1c873d0f28fe6332ca38d5e8b93e467b6ed9749e85e4d5

  • memory/580-65-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/580-66-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/580-69-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/580-71-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/580-67-0x000000000045302E-mapping.dmp

  • memory/580-64-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/580-61-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/580-62-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1072-59-0x0000000000000000-mapping.dmp

  • memory/1908-54-0x0000000000830000-0x00000000008DC000-memory.dmp

    Filesize

    688KB

  • memory/1908-55-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

    Filesize

    8KB

  • memory/1908-56-0x0000000000450000-0x0000000000458000-memory.dmp

    Filesize

    32KB

  • memory/1908-58-0x0000000005130000-0x0000000005198000-memory.dmp

    Filesize

    416KB

  • memory/1908-57-0x00000000050A0000-0x0000000005136000-memory.dmp

    Filesize

    600KB