Analysis

  • max time kernel
    142s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-02-2025 06:01

General

  • Target

    Payment13022025000001111928374.exe

  • Size

    693KB

  • MD5

    cb805d778f2b3ea120e2714f9f0aa47a

  • SHA1

    27699b574b53703759f1d0b9abaf809e45850892

  • SHA256

    86ec76a64ac162f4699a584a6fbdcf08c6bdfc5e5714e2052b954a7be85e6efc

  • SHA512

    0781a51fa0ee43ed3ee2cbeea735545610e5fb30262ca39cdf707198208b3ae4873066cf73e68c18773cdd93d1079758db27f669484630565196ef4cc68d9279

  • SSDEEP

    12288:hDG4hAuAseF4POiVx2TD2QafZytgdPb48pymqge58jznxP:t2nsmpi6D2BytGDnxPh

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://mail.hearing-vision.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    LILKOOLL14!

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • 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 3 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 NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment13022025000001111928374.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment13022025000001111928374.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2816
    • C:\Users\Admin\AppData\Local\Temp\Payment13022025000001111928374.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment13022025000001111928374.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Skullcaps\Flexuosities\gammastraaling.ini

    Filesize

    7KB

    MD5

    208b492f269677c290c1d0a3b8435b0b

    SHA1

    3c3e494d0cc8f175e31ddc9a08dd1e3eca89b34f

    SHA256

    5a9b8ba78b02b3cc378637ae164f9f55491efa7bec601a2ea86f1016c00f7a3e

    SHA512

    ed30993831d4dc995ba50dc05cf8f6987c75cb0fcdea79c82236226611a9e86c1b23f24c66d1fb6cffa29a95992893cc11103c81f5d9972f059809319c4a1dcb

  • \Users\Admin\AppData\Local\Temp\nsj786D.tmp\System.dll

    Filesize

    11KB

    MD5

    ee260c45e97b62a5e42f17460d406068

    SHA1

    df35f6300a03c4d3d3bd69752574426296b78695

    SHA256

    e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

    SHA512

    a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

  • memory/2816-15-0x0000000004020000-0x0000000005161000-memory.dmp

    Filesize

    17.3MB

  • memory/2816-16-0x0000000076D61000-0x0000000076E62000-memory.dmp

    Filesize

    1.0MB

  • memory/2816-17-0x0000000076D60000-0x0000000076F09000-memory.dmp

    Filesize

    1.7MB

  • memory/2864-18-0x00000000014F0000-0x0000000002631000-memory.dmp

    Filesize

    17.3MB

  • memory/2864-19-0x0000000076D60000-0x0000000076F09000-memory.dmp

    Filesize

    1.7MB

  • memory/2864-20-0x0000000000480000-0x00000000014E2000-memory.dmp

    Filesize

    16.4MB

  • memory/2864-21-0x00000000014F0000-0x0000000002631000-memory.dmp

    Filesize

    17.3MB

  • memory/2864-22-0x0000000000480000-0x00000000004C2000-memory.dmp

    Filesize

    264KB