Analysis

  • max time kernel
    142s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2023 10:13

General

  • Target

    RFQ235658.exe

  • Size

    673KB

  • MD5

    92330463b66638fc2f745cba74d1638f

  • SHA1

    d94d75a811885152bf7764529afbe79e6dfcd078

  • SHA256

    cb56a616b456b089946738d62f352b134934ce2e9e23ce00cfc803e35748cfce

  • SHA512

    e8363d81d23beadb9d4c33db7a046596a41be83b57d4f00c96dcd02c4245271f24e78aa2ec0a3a6ddfd4a1dcc74c1b2873655ebfc7ec10e3c9bb44e4fb66885a

  • SSDEEP

    12288:ACwAJyImgqzkUB/hBnpxRRR7g6xrZUbygh9sUOd:yAJqBLnjCmgJhrOd

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.lubdub.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    J-y!2e_fWMH_XP8F_008

Extracted

Family

agenttesla

Credentials

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 2 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 WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ235658.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ235658.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Users\Admin\AppData\Local\Temp\RFQ235658.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ235658.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ235658.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/4048-10-0x0000000008A00000-0x0000000008A9C000-memory.dmp

    Filesize

    624KB

  • memory/4048-14-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/4048-9-0x00000000063C0000-0x000000000643A000-memory.dmp

    Filesize

    488KB

  • memory/4048-4-0x0000000004BF0000-0x0000000004C00000-memory.dmp

    Filesize

    64KB

  • memory/4048-5-0x0000000004CA0000-0x0000000004CAA000-memory.dmp

    Filesize

    40KB

  • memory/4048-6-0x0000000005E30000-0x0000000005E46000-memory.dmp

    Filesize

    88KB

  • memory/4048-7-0x0000000005E40000-0x0000000005E48000-memory.dmp

    Filesize

    32KB

  • memory/4048-8-0x0000000005E50000-0x0000000005E5A000-memory.dmp

    Filesize

    40KB

  • memory/4048-3-0x0000000004C00000-0x0000000004C92000-memory.dmp

    Filesize

    584KB

  • memory/4048-2-0x0000000005110000-0x00000000056B4000-memory.dmp

    Filesize

    5.6MB

  • memory/4048-1-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/4048-0-0x0000000000150000-0x00000000001FE000-memory.dmp

    Filesize

    696KB

  • memory/4772-20-0x0000000005310000-0x0000000005320000-memory.dmp

    Filesize

    64KB

  • memory/4772-15-0x00000000051B0000-0x0000000005216000-memory.dmp

    Filesize

    408KB

  • memory/4772-16-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/4772-17-0x0000000005310000-0x0000000005320000-memory.dmp

    Filesize

    64KB

  • memory/4772-18-0x0000000006990000-0x00000000069E0000-memory.dmp

    Filesize

    320KB

  • memory/4772-19-0x0000000074AE0000-0x0000000075290000-memory.dmp

    Filesize

    7.7MB

  • memory/4772-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB