Analysis

  • max time kernel
    115s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:13

General

  • Target

    Payment Copy.exe

  • Size

    662KB

  • MD5

    f87d55afc11f0766d335de227e82d2e9

  • SHA1

    dd28418244ed603d156b2985172c452c3f12c725

  • SHA256

    5b52beb61f01acce45442d85adcc909eabc07d87fc006d35c9e37f5d8b69d2c2

  • SHA512

    eea0b5e24bfb2a6fe7c90ccc71cfe191de5db78c6f4dbd5e2876fc1799f91d403339927d787d2a5323b31fed8c6ab6f5725323d7a2de9262f64937da5a74aa06

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.millndustries.com
  • Port:
    587
  • Username:
    chukwuyem@millndustries.com
  • Password:
    {zdog:g7S@R3

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:888
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NEDRvYVKNLDZd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDD26.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1736
    • C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1996

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\Temp\tmpDD26.tmp
    Filesize

    1KB

    MD5

    9a4c2bf2b4350746494af73bf1b94c5c

    SHA1

    fa9161c979e42a7076022e5a66f52ceffb7e464d

    SHA256

    a1fab07f71cfb34e78086c9e61f9f4075c1626e8105b582b1b3840aae36e7de2

    SHA512

    444a0c42295a5f64dff8a48cf0682af5b34d195086875d7b9bcc8f1187d9259bd685cf28a1dfeef3840af01c8721aab008362438c45e1523a76412d4be31289a

  • memory/888-54-0x00000000755C1000-0x00000000755C3000-memory.dmp
    Filesize

    8KB

  • memory/888-55-0x0000000074640000-0x0000000074BEB000-memory.dmp
    Filesize

    5.7MB

  • memory/1736-56-0x0000000000000000-mapping.dmp
  • memory/1996-61-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1996-59-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1996-58-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1996-62-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1996-63-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1996-64-0x00000000004542FE-mapping.dmp
  • memory/1996-66-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1996-68-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1996-70-0x0000000074640000-0x0000000074BEB000-memory.dmp
    Filesize

    5.7MB