Analysis

  • max time kernel
    139s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/05/2023, 20:43

General

  • Target

    Hesapzeti.pdf.exe

  • Size

    540KB

  • MD5

    e80eeba3f3f250de2759818b6ca2b030

  • SHA1

    a4b7821fd9b2e51ef22032e51643b907d08c8bd8

  • SHA256

    050ff72362dbca4fcf4aab3117d7215c3f66f6c271f0f03955e75e3083fb6bb1

  • SHA512

    813f3ab9e9e607f77c40de2ee12f96875a2be6c6700fa91d9f2e1ff6d8e3620da5300991414e033169fe4902facc7ad0bbbfd4d77f8ae910dfed7a9256a92c71

  • SSDEEP

    6144:N4455J7Fs5eH+8o9nWVgCC0z1u1TijTAfdnaLig/oT4u19kLjryE68xrXGxqntAO:hRO7io1KAln09/oB9WjrL1bvt

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5830566856:AAGWFy9uABhntGSW37Ll1sdhis_3Sq_arBM/sendMessage?chat_id=1467583453

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Hesapzeti.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Hesapzeti.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4816
    • C:\Users\Admin\AppData\Local\Temp\Hesapzeti.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Hesapzeti.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4444

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • memory/4444-140-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/4444-143-0x0000000005330000-0x0000000005340000-memory.dmp

          Filesize

          64KB

        • memory/4444-144-0x0000000005330000-0x0000000005340000-memory.dmp

          Filesize

          64KB

        • memory/4816-133-0x0000000000850000-0x00000000008DE000-memory.dmp

          Filesize

          568KB

        • memory/4816-134-0x00000000057A0000-0x0000000005D44000-memory.dmp

          Filesize

          5.6MB

        • memory/4816-135-0x0000000005290000-0x0000000005322000-memory.dmp

          Filesize

          584KB

        • memory/4816-136-0x0000000005260000-0x0000000005270000-memory.dmp

          Filesize

          64KB

        • memory/4816-137-0x0000000005420000-0x000000000542A000-memory.dmp

          Filesize

          40KB

        • memory/4816-138-0x0000000005260000-0x0000000005270000-memory.dmp

          Filesize

          64KB

        • memory/4816-139-0x0000000006F20000-0x0000000006FBC000-memory.dmp

          Filesize

          624KB