Analysis

  • max time kernel
    150s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    26-01-2021 13:34

General

  • Target

    PL5CS6pwNitND2n.exe

  • Size

    559KB

  • MD5

    2370f590e857316425728c92f69e87ef

  • SHA1

    318a4f4263e9c9a4dbee501d75649aeb6fafc62d

  • SHA256

    b0512bf4c4bebccd0be10d2f25cf41a31b76ad4d282e0f3fa53799d45e906a15

  • SHA512

    e37f0ba55815c646796cd863921f884e7099b20f53b1c9eaebb22e247a0b28a6a67e05b2f35ce618d5451e556e8a6021cb7ea71bfc832c415480f3fc59f8ab35

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.lockitsolutions.co.ke
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    7p4m*_^m)PXc

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Drops file in Drivers directory 1 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
  • 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 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PL5CS6pwNitND2n.exe
    "C:\Users\Admin\AppData\Local\Temp\PL5CS6pwNitND2n.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3084
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EyUjfv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1473.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:68
    • C:\Users\Admin\AppData\Local\Temp\PL5CS6pwNitND2n.exe
      "C:\Users\Admin\AppData\Local\Temp\PL5CS6pwNitND2n.exe"
      2⤵
      • Drops file in Drivers directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1488

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PL5CS6pwNitND2n.exe.log
    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • C:\Users\Admin\AppData\Local\Temp\tmp1473.tmp
    MD5

    24332a7963ec22c3ff3eef1970bc928b

    SHA1

    55bf9d6b5b6200b07f820e655f5b893b4fd7a1e3

    SHA256

    5f173ec3863aa75b266159fa41e007b498fe31914d9154853a346ab9842f4a35

    SHA512

    f556f55e861a618c872d5564ac6548798cff68ea18e29926fa43ba358925f08e14d1c737fccb207b13fe18edf3d03a5c30b6cf80ecc0cd7d74a4606743d2d57e

  • memory/68-13-0x0000000000000000-mapping.dmp
  • memory/1488-25-0x0000000005BE0000-0x0000000005BE1000-memory.dmp
    Filesize

    4KB

  • memory/1488-24-0x0000000005550000-0x0000000005551000-memory.dmp
    Filesize

    4KB

  • memory/1488-23-0x0000000005050000-0x0000000005051000-memory.dmp
    Filesize

    4KB

  • memory/1488-18-0x0000000073940000-0x000000007402E000-memory.dmp
    Filesize

    6.9MB

  • memory/1488-15-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1488-16-0x000000000043776E-mapping.dmp
  • memory/3084-7-0x00000000056D0000-0x00000000056D1000-memory.dmp
    Filesize

    4KB

  • memory/3084-12-0x0000000006380000-0x00000000063EA000-memory.dmp
    Filesize

    424KB

  • memory/3084-11-0x0000000005AB0000-0x0000000005AB3000-memory.dmp
    Filesize

    12KB

  • memory/3084-10-0x0000000005920000-0x0000000005921000-memory.dmp
    Filesize

    4KB

  • memory/3084-9-0x0000000005910000-0x0000000005911000-memory.dmp
    Filesize

    4KB

  • memory/3084-8-0x00000000055E0000-0x00000000055E1000-memory.dmp
    Filesize

    4KB

  • memory/3084-2-0x0000000073940000-0x000000007402E000-memory.dmp
    Filesize

    6.9MB

  • memory/3084-6-0x0000000005BD0000-0x0000000005BD1000-memory.dmp
    Filesize

    4KB

  • memory/3084-5-0x0000000005620000-0x0000000005621000-memory.dmp
    Filesize

    4KB

  • memory/3084-3-0x0000000000D40000-0x0000000000D41000-memory.dmp
    Filesize

    4KB