Analysis

  • max time kernel
    125s
  • max time network
    50s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2023 11:03

General

  • Target

    Quotation No. Qtn10077_pdf.exe

  • Size

    695KB

  • MD5

    31551a88926803c70a9e980221e78725

  • SHA1

    dd084cf17da2d7b527d6155277951f6c2cc39e53

  • SHA256

    60dac627fbdc535bbe16d77f574a17deae993bf0b70e0ca445bea798e8e62e91

  • SHA512

    9685c9a31bc7315ced6e00aa48ab11487d865d94e99b8dc100c887a8703c2d16151dc7af704ced6f339d61c17a3a44921fa5139c4c6e44204a3b5d692893db73

  • SSDEEP

    12288:NueH5q9T7vB5DaHvvqvjsguQL3/7c/CaesrEAfZJ7BU/X:7qp7J5DasIgn3/7JIEMZJ7BUv

Malware Config

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 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation No. Qtn10077_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation No. Qtn10077_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Users\Admin\AppData\Local\Temp\Quotation No. Qtn10077_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Quotation No. Qtn10077_pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Quotation No. Qtn10077_pdf.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/3416-10-0x0000000009100000-0x000000000919C000-memory.dmp

    Filesize

    624KB

  • memory/3416-14-0x0000000074560000-0x0000000074D10000-memory.dmp

    Filesize

    7.7MB

  • memory/3416-9-0x0000000006A70000-0x0000000006AEA000-memory.dmp

    Filesize

    488KB

  • memory/3416-4-0x0000000004FF0000-0x0000000005000000-memory.dmp

    Filesize

    64KB

  • memory/3416-5-0x0000000004E30000-0x0000000004E3A000-memory.dmp

    Filesize

    40KB

  • memory/3416-6-0x0000000004FB0000-0x0000000004FCA000-memory.dmp

    Filesize

    104KB

  • memory/3416-7-0x0000000005100000-0x0000000005108000-memory.dmp

    Filesize

    32KB

  • memory/3416-8-0x0000000005110000-0x000000000511A000-memory.dmp

    Filesize

    40KB

  • memory/3416-3-0x0000000004E70000-0x0000000004F02000-memory.dmp

    Filesize

    584KB

  • memory/3416-2-0x0000000005420000-0x00000000059C4000-memory.dmp

    Filesize

    5.6MB

  • memory/3416-0-0x0000000000390000-0x0000000000444000-memory.dmp

    Filesize

    720KB

  • memory/3416-1-0x0000000074560000-0x0000000074D10000-memory.dmp

    Filesize

    7.7MB

  • memory/4684-20-0x00000000051D0000-0x00000000051E0000-memory.dmp

    Filesize

    64KB

  • memory/4684-16-0x0000000074560000-0x0000000074D10000-memory.dmp

    Filesize

    7.7MB

  • memory/4684-15-0x00000000054C0000-0x0000000005526000-memory.dmp

    Filesize

    408KB

  • memory/4684-17-0x00000000051D0000-0x00000000051E0000-memory.dmp

    Filesize

    64KB

  • memory/4684-18-0x0000000006BD0000-0x0000000006C20000-memory.dmp

    Filesize

    320KB

  • memory/4684-19-0x0000000074560000-0x0000000074D10000-memory.dmp

    Filesize

    7.7MB

  • memory/4684-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB