Analysis

  • max time kernel
    152s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:25

General

  • Target

    NEW_ORDRE-98767-Doc.exe

  • Size

    636KB

  • MD5

    457e31b0c58ec283e411bd1bf59ba773

  • SHA1

    ba1e592cbe4ed8a696cd8480fe8e6a2a4f467f51

  • SHA256

    fddde2c8eef8500b27534730d7d921de40a507d1531488a8ee278fc93ce422db

  • SHA512

    9e1336f9a554778ea94be0d30b2ca411ad05c61c9e895e5dc2fbd307e94b743969b17cb8d96b3c57a9cc98334465f9805180311b6dbcddc0da5fa51efc46d261

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    valid247

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    valid247

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEW_ORDRE-98767-Doc.exe
    "C:\Users\Admin\AppData\Local\Temp\NEW_ORDRE-98767-Doc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1380
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp93F3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4392
    • C:\Users\Admin\AppData\Local\Temp\NEW_ORDRE-98767-Doc.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4920

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

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\NEW_ORDRE-98767-Doc.exe.log
    Filesize

    431B

    MD5

    5857e83c18f89642029016ceb700fea1

    SHA1

    8367bf8b24bfbfc84c926eba2f636c0ebcb05aed

    SHA256

    35ef4eb837f4c0639da9cae138dad6ae419fdaf1996153b5a0ed11c7c73bcd7d

    SHA512

    adb87f85135e215dccc38034dcb5c7680ca4be44be9830b22eaf4cea05260cad8febcf4f1705a827e4cc518457ec79eda359e95c158bb79bed15a359ab0afe1d

  • C:\Users\Admin\AppData\Local\Temp\tmp93F3.tmp
    Filesize

    1KB

    MD5

    072541fbcc0f05e7e00afb8876087822

    SHA1

    0a1a6ad25a4a546520fe21bed23b4dd56f5ea7f5

    SHA256

    8a98b2e2084e096028123a79228bc1b11f12179aecfbe53759b3e0805f973116

    SHA512

    07074f512ee920a787af3d49d982795121051cc5cd1ce01d115aab63cd800fd58f2f57e73dafb96151e57ada9d2e407e370abc9c56d8ab604d118dad93c1412d

  • memory/1380-130-0x0000000075210000-0x00000000757C1000-memory.dmp
    Filesize

    5.7MB

  • memory/4392-131-0x0000000000000000-mapping.dmp
  • memory/4920-133-0x0000000000000000-mapping.dmp
  • memory/4920-134-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/4920-136-0x0000000075210000-0x00000000757C1000-memory.dmp
    Filesize

    5.7MB