Analysis

  • max time kernel
    126s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2023 13:56

General

  • Target

    RFQ_20231201-876658xls.exe

  • Size

    738KB

  • MD5

    33a2aca5866de0f687e0d5d64c1feb9b

  • SHA1

    42c8a406496525574a3954a219968db17eb7877f

  • SHA256

    cb3cd1f7db0ac8ef966e513358935676673bd972b8baad11ef0f2a8bfdb9cbe4

  • SHA512

    0df31bd83fb732f9c228807b1ff0897a1f58198a3d9baf544eec95dbae2d19de490a47e2217455438eed4132fb6a5b5f834e74c8210d7741914cc74e4fd65cb6

  • SSDEEP

    12288:kI2ICYm2L/c37RaJFheLHUvGnJ6zsCMgzF+Nm3jZ738FQTft:AX27c3yQL0vyljgzAwjZj8C

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.dzine.com.tr
  • Port:
    21
  • Username:
    dzinecom
  • Password:
    Dzine21.

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.dzine.com.tr
  • Port:
    21
  • Username:
    dzinecom
  • Password:
    Dzine21.

Signatures

  • AgentTesla

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

  • 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.

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876658xls.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876658xls.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2012
    • C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876658xls.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876658xls.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ_20231201-876658xls.exe.log

    Filesize

    1KB

    MD5

    b7b9acb869ccc7f7ecb5304ec0384dee

    SHA1

    6a90751c95817903ee833d59a0abbef425a613b3

    SHA256

    8cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4

    SHA512

    7bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764

  • memory/2012-10-0x0000000005DF0000-0x0000000005DFA000-memory.dmp

    Filesize

    40KB

  • memory/2012-16-0x0000000074DE0000-0x0000000075590000-memory.dmp

    Filesize

    7.7MB

  • memory/2012-3-0x0000000004F00000-0x0000000004F92000-memory.dmp

    Filesize

    584KB

  • memory/2012-4-0x0000000005090000-0x00000000053E4000-memory.dmp

    Filesize

    3.3MB

  • memory/2012-5-0x0000000005080000-0x0000000005090000-memory.dmp

    Filesize

    64KB

  • memory/2012-6-0x0000000005050000-0x000000000505A000-memory.dmp

    Filesize

    40KB

  • memory/2012-7-0x0000000005C40000-0x0000000005CDC000-memory.dmp

    Filesize

    624KB

  • memory/2012-11-0x00000000066A0000-0x0000000006726000-memory.dmp

    Filesize

    536KB

  • memory/2012-9-0x0000000005DE0000-0x0000000005DE8000-memory.dmp

    Filesize

    32KB

  • memory/2012-1-0x0000000074DE0000-0x0000000075590000-memory.dmp

    Filesize

    7.7MB

  • memory/2012-8-0x0000000005B30000-0x0000000005B46000-memory.dmp

    Filesize

    88KB

  • memory/2012-2-0x00000000054B0000-0x0000000005A54000-memory.dmp

    Filesize

    5.6MB

  • memory/2012-0-0x0000000000450000-0x000000000050E000-memory.dmp

    Filesize

    760KB

  • memory/2664-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2664-15-0x0000000074DE0000-0x0000000075590000-memory.dmp

    Filesize

    7.7MB

  • memory/2664-17-0x0000000005690000-0x00000000056A0000-memory.dmp

    Filesize

    64KB

  • memory/2664-18-0x0000000005870000-0x00000000058D6000-memory.dmp

    Filesize

    408KB

  • memory/2664-19-0x0000000006D50000-0x0000000006DA0000-memory.dmp

    Filesize

    320KB

  • memory/2664-20-0x0000000074DE0000-0x0000000075590000-memory.dmp

    Filesize

    7.7MB

  • memory/2664-21-0x0000000005690000-0x00000000056A0000-memory.dmp

    Filesize

    64KB