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Analysis

  • max time kernel
    151s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 19:54

General

  • Target

    Purchase-Order.scr.exe

  • Size

    672KB

  • MD5

    7fccb0197c8d6888ab6a5f9713fba9f6

  • SHA1

    ae8ea47dbb7c8bc40df063ea2e05823e2458cced

  • SHA256

    b89fe3a178283fbd51ed71bd488e079a81dff40fc7124f57540e98540dce28a1

  • SHA512

    feccea6ac8dc93c7f3bc88f3e3b2d3a84b11738161c8e1a153c5a8a29e17e424a84b75daf1754dd3e9d0f7f32335b9e1a6aa811349660e4f6837247add0bb7d2

  • SSDEEP

    12288:UVj3hLQvfdxOo7gpXtrFF725cxd9dvmVV38eIlCwWTIghwhKfwlucbh1ejqaRiv6:sMOfx4twKyxluc90JRk6

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6364043354:AAF_1bGx2vGEmysmy8L-UNpPd2QFFHQH3WU/

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase-Order.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase-Order.scr.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4220
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KxnjucokNh.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2960
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KxnjucokNh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp656C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1192
    • C:\Users\Admin\AppData\Local\Temp\Purchase-Order.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase-Order.scr.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dx50h0tu.yjx.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp656C.tmp

    Filesize

    1KB

    MD5

    f52d376a07e27b3da9fcf75802aceedf

    SHA1

    9643a9ce81433b74d4611a5bd845f49ede2361f6

    SHA256

    c4f73df048b56064ecdfc3ed6ebd5e73d9bd3ae3a97cc8db91b27033f5e21e5c

    SHA512

    4d15998b117b89e64ff1585ba023b0d70f78ab9a14bd678069a467a6dedf4b082abb239711cf27071ad3068d5e65abfbd5d2edb04a27505e82b242a9b3ffd9ff

  • memory/1444-45-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/1444-42-0x0000000004E50000-0x0000000004E60000-memory.dmp

    Filesize

    64KB

  • memory/1444-40-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/1444-38-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2960-46-0x0000000005010000-0x0000000005020000-memory.dmp

    Filesize

    64KB

  • memory/2960-37-0x0000000005010000-0x0000000005020000-memory.dmp

    Filesize

    64KB

  • memory/2960-70-0x0000000007B60000-0x0000000007B74000-memory.dmp

    Filesize

    80KB

  • memory/2960-69-0x0000000006800000-0x000000000680E000-memory.dmp

    Filesize

    56KB

  • memory/2960-67-0x00000000011D0000-0x00000000011E1000-memory.dmp

    Filesize

    68KB

  • memory/2960-66-0x0000000007B80000-0x0000000007C16000-memory.dmp

    Filesize

    600KB

  • memory/2960-16-0x0000000004F70000-0x0000000004FA6000-memory.dmp

    Filesize

    216KB

  • memory/2960-17-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/2960-18-0x0000000005010000-0x0000000005020000-memory.dmp

    Filesize

    64KB

  • memory/2960-64-0x00000000067F0000-0x00000000067FA000-memory.dmp

    Filesize

    40KB

  • memory/2960-21-0x0000000005650000-0x0000000005C78000-memory.dmp

    Filesize

    6.2MB

  • memory/2960-20-0x0000000005010000-0x0000000005020000-memory.dmp

    Filesize

    64KB

  • memory/2960-22-0x0000000005460000-0x0000000005482000-memory.dmp

    Filesize

    136KB

  • memory/2960-24-0x0000000005570000-0x00000000055D6000-memory.dmp

    Filesize

    408KB

  • memory/2960-23-0x0000000005500000-0x0000000005566000-memory.dmp

    Filesize

    408KB

  • memory/2960-63-0x0000000007910000-0x000000000792A000-memory.dmp

    Filesize

    104KB

  • memory/2960-34-0x0000000005F40000-0x0000000006294000-memory.dmp

    Filesize

    3.3MB

  • memory/2960-35-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/2960-36-0x0000000005010000-0x0000000005020000-memory.dmp

    Filesize

    64KB

  • memory/2960-62-0x0000000007F60000-0x00000000085DA000-memory.dmp

    Filesize

    6.5MB

  • memory/2960-60-0x0000000005010000-0x0000000005020000-memory.dmp

    Filesize

    64KB

  • memory/2960-59-0x00000000077D0000-0x0000000007873000-memory.dmp

    Filesize

    652KB

  • memory/2960-58-0x0000000006B00000-0x0000000006B1E000-memory.dmp

    Filesize

    120KB

  • memory/2960-48-0x0000000071330000-0x000000007137C000-memory.dmp

    Filesize

    304KB

  • memory/2960-43-0x0000000006560000-0x000000000657E000-memory.dmp

    Filesize

    120KB

  • memory/2960-44-0x0000000006630000-0x000000000667C000-memory.dmp

    Filesize

    304KB

  • memory/2960-47-0x0000000006B40000-0x0000000006B72000-memory.dmp

    Filesize

    200KB

  • memory/4220-7-0x00000000053A0000-0x00000000053B0000-memory.dmp

    Filesize

    64KB

  • memory/4220-1-0x0000000000390000-0x000000000043E000-memory.dmp

    Filesize

    696KB

  • memory/4220-2-0x00000000053D0000-0x0000000005974000-memory.dmp

    Filesize

    5.6MB

  • memory/4220-3-0x0000000004E20000-0x0000000004EB2000-memory.dmp

    Filesize

    584KB

  • memory/4220-41-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/4220-4-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

    Filesize

    64KB

  • memory/4220-0-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/4220-5-0x0000000004E00000-0x0000000004E0A000-memory.dmp

    Filesize

    40KB

  • memory/4220-6-0x0000000005070000-0x000000000510C000-memory.dmp

    Filesize

    624KB

  • memory/4220-11-0x0000000007250000-0x00000000072CE000-memory.dmp

    Filesize

    504KB

  • memory/4220-10-0x00000000053B0000-0x00000000053BC000-memory.dmp

    Filesize

    48KB

  • memory/4220-9-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

    Filesize

    64KB

  • memory/4220-8-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB