Analysis

  • max time kernel
    121s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    08-04-2021 05:25

General

  • Target

    Payment _Advice (2).exe

  • Size

    804KB

  • MD5

    8447c64196fb7ebc7e37e346c3398494

  • SHA1

    a30a0cf36a1bceb9bca69685a919bb9eb6adcb50

  • SHA256

    896a518b2db98d75130034be194d0c0295e00a5c310e068790599b69420b2f08

  • SHA512

    c3c509fd18e3cd4e7f5574d221c8afe20eaaa4dca9871cc58f7ebf6855469866319d1ef22df6ba5d9d7ee4c7c442c6235b2992f590e65aaed45d62996e1b0eb4

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    result.package@yandex.ru
  • Password:
    Blessing123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment _Advice (2).exe
    "C:\Users\Admin\AppData\Local\Temp\Payment _Advice (2).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\swKEXBSIZHVZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3796.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3612
    • C:\Users\Admin\AppData\Local\Temp\Payment _Advice (2).exe
      "C:\Users\Admin\AppData\Local\Temp\Payment _Advice (2).exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3152

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\Microsoft\CLR_v2.0_32\UsageLogs\Payment _Advice (2).exe.log
    MD5

    5e7bb97636a484b5a87e60373614279a

    SHA1

    36bfdec32eedb141a4a106d89a453326f62593ee

    SHA256

    12ed6e1df2c57556c59dfd6630fd454a9df76166f340c41ee6bc54d98e709e20

    SHA512

    448c62d538e646045d7315ff902b86f614e2dc1eb0959c22c6618fd2c8767c330d24692357559310e6b55b0c35415a14a6ab2d6d9b8d2a03186949b97190fd56

  • C:\Users\Admin\AppData\Local\Temp\tmp3796.tmp
    MD5

    e6502e73cd02d41cca5091f06265a8af

    SHA1

    403a0688d2f0ee9eb43e31177bfdc5b37f0f308f

    SHA256

    c560a7f39498116a680b890cf1f6704191979c689cb0cba04ddd1ba3b1243097

    SHA512

    ae13d888fec32e19806093ac40351cd5473281638f844383959c7d05d2f777494343c750cf5443c649f6c12e30dc6ef506bf45620077493e2acb4d6abd7ad8ed

  • memory/1048-2-0x00000000001F0000-0x00000000001F1000-memory.dmp
    Filesize

    4KB

  • memory/1048-3-0x00000000001F1000-0x00000000001F2000-memory.dmp
    Filesize

    4KB

  • memory/1048-4-0x000000007EDE0000-0x000000007EDE1000-memory.dmp
    Filesize

    4KB

  • memory/3152-7-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/3152-8-0x00000000004374FE-mapping.dmp
  • memory/3152-10-0x00000000029C0000-0x00000000029C1000-memory.dmp
    Filesize

    4KB

  • memory/3152-11-0x00000000029C1000-0x00000000029C2000-memory.dmp
    Filesize

    4KB

  • memory/3612-5-0x0000000000000000-mapping.dmp