Analysis

  • max time kernel
    123s
  • max time network
    178s
  • 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 09:27

General

  • Target

    RFQ_20231201-876678xls.exe

  • Size

    680KB

  • MD5

    967eb9fa0ce5f1ec2b6b132728fc6e07

  • SHA1

    58d29f3b5463467cfd666b8b1b79bbec930f0d66

  • SHA256

    1c6dffa90d393fdcc2db9e1cf8af2c557129bb4afadb04d87969ad3edd10ffc3

  • SHA512

    6960fe8f82db6c3e020be07fc6147361c8ba4966293c761255156bd6e32025d203290f3c39d535dde60078addd9cc99f461adc793605a28f996331cd6f829ad1

  • SSDEEP

    12288:tCIEJjIu1KPsUDMy1+TiReOE1rUxsLINxW/9AFItaGeGQwmEBK:7EJHKPrWiRMV0Ne9A6sdGQwmEc

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_20231201-876678xls.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876678xls.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5112
    • C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876678xls.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876678xls.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ_20231201-876678xls.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/2464-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2464-20-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB

  • memory/2464-19-0x0000000006E60000-0x0000000006EB0000-memory.dmp

    Filesize

    320KB

  • memory/2464-18-0x0000000005960000-0x00000000059C6000-memory.dmp

    Filesize

    408KB

  • memory/2464-17-0x0000000005B20000-0x0000000005B30000-memory.dmp

    Filesize

    64KB

  • memory/2464-16-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB

  • memory/5112-5-0x0000000005210000-0x000000000521A000-memory.dmp

    Filesize

    40KB

  • memory/5112-8-0x0000000006400000-0x000000000640A000-memory.dmp

    Filesize

    40KB

  • memory/5112-9-0x00000000066F0000-0x000000000676C000-memory.dmp

    Filesize

    496KB

  • memory/5112-10-0x0000000009020000-0x00000000090BC000-memory.dmp

    Filesize

    624KB

  • memory/5112-7-0x00000000063F0000-0x00000000063F8000-memory.dmp

    Filesize

    32KB

  • memory/5112-6-0x0000000005730000-0x0000000005746000-memory.dmp

    Filesize

    88KB

  • memory/5112-14-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB

  • memory/5112-15-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB

  • memory/5112-0-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB

  • memory/5112-4-0x0000000005410000-0x0000000005420000-memory.dmp

    Filesize

    64KB

  • memory/5112-3-0x0000000005230000-0x00000000052C2000-memory.dmp

    Filesize

    584KB

  • memory/5112-2-0x0000000005740000-0x0000000005CE4000-memory.dmp

    Filesize

    5.6MB

  • memory/5112-1-0x00000000007B0000-0x0000000000860000-memory.dmp

    Filesize

    704KB