Analysis

  • max time kernel
    129s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 01:29

General

  • Target

    frndYingwabenz.exe

  • Size

    2.3MB

  • MD5

    134d09409208cf2631eea82d7cf985a8

  • SHA1

    9b580e7fbbbfe30146688799ba82a76296387728

  • SHA256

    2ee45b698151d921c58fa20ee6f839d5a4abe2ff3a8f8ee642c05e6dac8980bd

  • SHA512

    410d84e85bfa495764b5a0239628424e44ded9dff561e394ab3cb37bea11ead1c67ebbc35a5122d9b677abeb091583561ea7e799eba8a0c1b665f6c54aae7b16

  • SSDEEP

    49152:zDLOGtL+Tg7yUpDGZzwqgfkrHL8g2GfdLraO8iDlQv3KwvXbzJ1dkN7O:zHOGtsOVpKZzjgcrogvdLehnp3RkN

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sturmsgroup.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    $(bQkIn8%O#z)bWw

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 34 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • 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 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 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\frndYingwabenz.exe
    "C:\Users\Admin\AppData\Local\Temp\frndYingwabenz.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\frndYingwabenz.exe
      "C:\Users\Admin\AppData\Local\Temp\frndYingwabenz.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    805B

    MD5

    58a9108e39c2ea50e65c23be3a9407cf

    SHA1

    fb21f7b9330aa1a77080a3243b81b49035102d7b

    SHA256

    6049be83020702896a539b5c8c13270add224d7b91b3ee0bebc328791b74a84b

    SHA512

    93804ee8a4560503e47c07f5fa4a959e23355a01aba406c103d339debc9b2b1d20a345cdbb8d8069dac97b9151f228cf559ac3dde1500e3484fba1a4126842bf

  • memory/1208-0-0x000000007494E000-0x000000007494F000-memory.dmp

    Filesize

    4KB

  • memory/1208-1-0x0000000000F70000-0x00000000011C0000-memory.dmp

    Filesize

    2.3MB

  • memory/1208-2-0x0000000005B90000-0x0000000005DC0000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-3-0x0000000006370000-0x0000000006914000-memory.dmp

    Filesize

    5.6MB

  • memory/1208-4-0x0000000005EA0000-0x0000000005F32000-memory.dmp

    Filesize

    584KB

  • memory/1208-20-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-22-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-52-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-50-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-68-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-66-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-64-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-62-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-60-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-58-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-56-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-54-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-49-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-44-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-42-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-38-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-36-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-32-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-30-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-28-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-46-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-40-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-34-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-24-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-18-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-14-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-12-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-10-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-6-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-26-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-16-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-8-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-5-0x0000000005B90000-0x0000000005DBA000-memory.dmp

    Filesize

    2.2MB

  • memory/1208-4885-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1208-4886-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1208-4887-0x00000000059D0000-0x0000000005A3C000-memory.dmp

    Filesize

    432KB

  • memory/1208-4888-0x0000000005A40000-0x0000000005A8C000-memory.dmp

    Filesize

    304KB

  • memory/1208-4889-0x0000000006130000-0x0000000006184000-memory.dmp

    Filesize

    336KB

  • memory/1208-4894-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3036-4893-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3036-4895-0x0000000000720000-0x0000000000762000-memory.dmp

    Filesize

    264KB

  • memory/3036-4896-0x0000000004D80000-0x0000000004DE6000-memory.dmp

    Filesize

    408KB

  • memory/3036-4897-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3036-4898-0x00000000062E0000-0x0000000006330000-memory.dmp

    Filesize

    320KB

  • memory/3036-4899-0x00000000063D0000-0x000000000646C000-memory.dmp

    Filesize

    624KB

  • memory/3036-4900-0x00000000065E0000-0x00000000065EA000-memory.dmp

    Filesize

    40KB

  • memory/3036-4901-0x0000000074940000-0x00000000750F0000-memory.dmp

    Filesize

    7.7MB