Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 01:25

General

  • Target

    XXuDKFWjapunCiC.exe

  • Size

    684KB

  • MD5

    8314bf1aabe8685f003af41a3f3d603d

  • SHA1

    c28a27895d8255f6c3bc6421d1bae8e9a3126e24

  • SHA256

    dc15c4392d12acd56140e63f666be57d666ac3dedb7057669b02ca3abd89091e

  • SHA512

    48dc530eb423b940067710d391732155ada45e830fc4878624fb0ed3892cd05572b07bbde8a2e485cb99cefb3d64607dba91ac29191944fcd48ed659aaa98116

  • SSDEEP

    12288:Y6/x504bFe/Kz/BhFRVsR4dWOsSP28aYTNSzOG0IJL5kJBWXuP79aylAO:d/w4bzyR4dLsSPFb2uINaCXuP79dAO

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7127892531:AAEiHDJV9da3w0nCvFvRsf9JJXqlkX03L5o/

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XXuDKFWjapunCiC.exe
    "C:\Users\Admin\AppData\Local\Temp\XXuDKFWjapunCiC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4688
    • C:\Users\Admin\AppData\Local\Temp\XXuDKFWjapunCiC.exe
      "C:\Users\Admin\AppData\Local\Temp\XXuDKFWjapunCiC.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4564

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/4564-12-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/4564-20-0x0000000075090000-0x0000000075840000-memory.dmp

    Filesize

    7.7MB

  • memory/4564-19-0x0000000006840000-0x0000000006890000-memory.dmp

    Filesize

    320KB

  • memory/4564-18-0x0000000075090000-0x0000000075840000-memory.dmp

    Filesize

    7.7MB

  • memory/4564-17-0x0000000005160000-0x00000000051C6000-memory.dmp

    Filesize

    408KB

  • memory/4564-15-0x0000000075090000-0x0000000075840000-memory.dmp

    Filesize

    7.7MB

  • memory/4688-4-0x0000000005730000-0x000000000573A000-memory.dmp

    Filesize

    40KB

  • memory/4688-8-0x0000000008670000-0x00000000086F2000-memory.dmp

    Filesize

    520KB

  • memory/4688-9-0x000000000ADF0000-0x000000000AE8C000-memory.dmp

    Filesize

    624KB

  • memory/4688-10-0x000000007509E000-0x000000007509F000-memory.dmp

    Filesize

    4KB

  • memory/4688-11-0x0000000075090000-0x0000000075840000-memory.dmp

    Filesize

    7.7MB

  • memory/4688-7-0x0000000008340000-0x0000000008350000-memory.dmp

    Filesize

    64KB

  • memory/4688-6-0x0000000005C30000-0x0000000005C4A000-memory.dmp

    Filesize

    104KB

  • memory/4688-16-0x0000000075090000-0x0000000075840000-memory.dmp

    Filesize

    7.7MB

  • memory/4688-0-0x000000007509E000-0x000000007509F000-memory.dmp

    Filesize

    4KB

  • memory/4688-5-0x0000000075090000-0x0000000075840000-memory.dmp

    Filesize

    7.7MB

  • memory/4688-3-0x0000000005740000-0x00000000057D2000-memory.dmp

    Filesize

    584KB

  • memory/4688-2-0x0000000005C50000-0x00000000061F4000-memory.dmp

    Filesize

    5.6MB

  • memory/4688-1-0x0000000000DB0000-0x0000000000E62000-memory.dmp

    Filesize

    712KB