Analysis

  • max time kernel
    125s
  • max time network
    128s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    20-10-2021 09:45

General

  • Target

    Swift copy.exe

  • Size

    436KB

  • MD5

    27c466c70e60445b429623de8101a6d5

  • SHA1

    f1fd7e7fbdcfd7deddd7426cf56dfe2218c793b2

  • SHA256

    a4481204cfad76211d499d418edb29b8d1fb33910b97de5dac0ead7258df4064

  • SHA512

    2496f0e97c67384670b2800ba5fd9f005921594aa9c55ccc9e266cfb9cb58874542f1b818e8e433e79c83c0c98ba44806e8abc231d2b9bce7efac34ea39afa77

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ekdantlab.co.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    muruga@123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Swift copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3628
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tFFJSJku" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2288.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3464
    • C:\Users\Admin\AppData\Local\Temp\Swift copy.exe
      "C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:504

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/504-128-0x00000000004376FE-mapping.dmp
  • memory/504-126-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/504-141-0x00000000050D0000-0x00000000055CE000-memory.dmp
    Filesize

    5.0MB

  • memory/504-386-0x00000000050D0000-0x00000000055CE000-memory.dmp
    Filesize

    5.0MB

  • memory/1796-122-0x0000000008490000-0x0000000008491000-memory.dmp
    Filesize

    4KB

  • memory/1796-121-0x00000000051E0000-0x00000000051E7000-memory.dmp
    Filesize

    28KB

  • memory/1796-120-0x0000000004CD0000-0x0000000004CD1000-memory.dmp
    Filesize

    4KB

  • memory/1796-123-0x0000000008630000-0x0000000008688000-memory.dmp
    Filesize

    352KB

  • memory/1796-119-0x0000000004CF0000-0x00000000051EE000-memory.dmp
    Filesize

    5.0MB

  • memory/1796-118-0x0000000004CF0000-0x0000000004CF1000-memory.dmp
    Filesize

    4KB

  • memory/1796-117-0x00000000051F0000-0x00000000051F1000-memory.dmp
    Filesize

    4KB

  • memory/1796-115-0x0000000000420000-0x0000000000421000-memory.dmp
    Filesize

    4KB

  • memory/3464-125-0x0000000000000000-mapping.dmp
  • memory/3628-136-0x0000000007560000-0x0000000007561000-memory.dmp
    Filesize

    4KB

  • memory/3628-144-0x0000000008390000-0x0000000008391000-memory.dmp
    Filesize

    4KB

  • memory/3628-133-0x0000000007780000-0x0000000007781000-memory.dmp
    Filesize

    4KB

  • memory/3628-129-0x0000000001170000-0x0000000001171000-memory.dmp
    Filesize

    4KB

  • memory/3628-137-0x0000000007600000-0x0000000007601000-memory.dmp
    Filesize

    4KB

  • memory/3628-138-0x0000000004C40000-0x0000000004C41000-memory.dmp
    Filesize

    4KB

  • memory/3628-139-0x00000000076E0000-0x00000000076E1000-memory.dmp
    Filesize

    4KB

  • memory/3628-140-0x0000000004C42000-0x0000000004C43000-memory.dmp
    Filesize

    4KB

  • memory/3628-127-0x0000000001170000-0x0000000001171000-memory.dmp
    Filesize

    4KB

  • memory/3628-142-0x0000000008030000-0x0000000008031000-memory.dmp
    Filesize

    4KB

  • memory/3628-143-0x0000000007DB0000-0x0000000007DB1000-memory.dmp
    Filesize

    4KB

  • memory/3628-130-0x0000000004B00000-0x0000000004B01000-memory.dmp
    Filesize

    4KB

  • memory/3628-145-0x00000000086C0000-0x00000000086C1000-memory.dmp
    Filesize

    4KB

  • memory/3628-146-0x0000000001170000-0x0000000001171000-memory.dmp
    Filesize

    4KB

  • memory/3628-153-0x00000000095E0000-0x0000000009613000-memory.dmp
    Filesize

    204KB

  • memory/3628-160-0x00000000095A0000-0x00000000095A1000-memory.dmp
    Filesize

    4KB

  • memory/3628-165-0x0000000009710000-0x0000000009711000-memory.dmp
    Filesize

    4KB

  • memory/3628-166-0x000000007E2E0000-0x000000007E2E1000-memory.dmp
    Filesize

    4KB

  • memory/3628-167-0x00000000098E0000-0x00000000098E1000-memory.dmp
    Filesize

    4KB

  • memory/3628-236-0x0000000004C43000-0x0000000004C44000-memory.dmp
    Filesize

    4KB

  • memory/3628-124-0x0000000000000000-mapping.dmp