Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    17-09-2021 21:31

General

  • Target

    4bbb3743225efc4821fed4984d9d41c3fbae8e405bd800b96016e2665bf30c9a.exe

  • Size

    629KB

  • MD5

    1c4fd4c1adfb8b5cc412128415251379

  • SHA1

    be4c136a0ff2793622d5a899bb52c184c87d7f6c

  • SHA256

    4bbb3743225efc4821fed4984d9d41c3fbae8e405bd800b96016e2665bf30c9a

  • SHA512

    df15a64b3002d3151370824a181dd8129c2452c1523b3ffdf1e0bbb95ae07aa0d09ed43e515a690c8040899e09a39c2ccf59d3af0199ae4f3734b863ce976316

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.medicare-equipment.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    AllTheBest777

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4bbb3743225efc4821fed4984d9d41c3fbae8e405bd800b96016e2665bf30c9a.exe
    "C:\Users\Admin\AppData\Local\Temp\4bbb3743225efc4821fed4984d9d41c3fbae8e405bd800b96016e2665bf30c9a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Users\Admin\AppData\Local\Temp\4bbb3743225efc4821fed4984d9d41c3fbae8e405bd800b96016e2665bf30c9a.exe
      "C:\Users\Admin\AppData\Local\Temp\4bbb3743225efc4821fed4984d9d41c3fbae8e405bd800b96016e2665bf30c9a.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4bbb3743225efc4821fed4984d9d41c3fbae8e405bd800b96016e2665bf30c9a.exe.log

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/3028-124-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/3028-133-0x00000000065B0000-0x00000000065B1000-memory.dmp

    Filesize

    4KB

  • memory/3028-132-0x0000000005A10000-0x0000000005A11000-memory.dmp

    Filesize

    4KB

  • memory/3028-131-0x0000000005960000-0x0000000005961000-memory.dmp

    Filesize

    4KB

  • memory/3028-125-0x000000000043766E-mapping.dmp

  • memory/4652-118-0x0000000004F70000-0x0000000004F71000-memory.dmp

    Filesize

    4KB

  • memory/4652-122-0x00000000078A0000-0x0000000007902000-memory.dmp

    Filesize

    392KB

  • memory/4652-123-0x0000000009F60000-0x0000000009F9A000-memory.dmp

    Filesize

    232KB

  • memory/4652-121-0x00000000073A0000-0x00000000073A1000-memory.dmp

    Filesize

    4KB

  • memory/4652-120-0x00000000051A0000-0x00000000051A7000-memory.dmp

    Filesize

    28KB

  • memory/4652-119-0x0000000004FA0000-0x000000000549E000-memory.dmp

    Filesize

    5.0MB

  • memory/4652-114-0x0000000000690000-0x0000000000691000-memory.dmp

    Filesize

    4KB

  • memory/4652-117-0x0000000005040000-0x0000000005041000-memory.dmp

    Filesize

    4KB

  • memory/4652-116-0x00000000054A0000-0x00000000054A1000-memory.dmp

    Filesize

    4KB