Analysis

  • max time kernel
    135s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/04/2023, 15:33

General

  • Target

    Confirmación de recibo de transferencia.exe

  • Size

    574KB

  • MD5

    658700b2c4fc938f3a4b4873d1067d18

  • SHA1

    6b42d8df3782f1306086a9a301006c60e4e82d50

  • SHA256

    297bcb98149a7029793c38e7827aba52e746e97a1a0fa85ac80a7b97bbc247f0

  • SHA512

    b4ce47444f3a0434151fdb5da9792a197aaa2a3127f3f00708b6a13a54a84738dcc4fdb066ad74d2d0b4cfdae8cd49c32aafafaf011e6fe9421a94f28fd41319

  • SSDEEP

    6144:piPhtKUPAwGPICWf2yTTJ4A8b/ndXeTtH3piH/KVoaDYRSOqhbLZyWzeLntPK0E+:U+oBnknETt6yxhLZyMUntS5

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.condominioaocubo.pt
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Qualidade.c3.2018

Extracted

Family

snakekeylogger

Credentials

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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4480
    • C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe
      "C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4460

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Confirmación de recibo de transferencia.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/4460-140-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/4460-143-0x0000000005910000-0x0000000005920000-memory.dmp

    Filesize

    64KB

  • memory/4460-144-0x0000000005910000-0x0000000005920000-memory.dmp

    Filesize

    64KB

  • memory/4480-133-0x0000000000D40000-0x0000000000DD6000-memory.dmp

    Filesize

    600KB

  • memory/4480-134-0x0000000005E60000-0x0000000006404000-memory.dmp

    Filesize

    5.6MB

  • memory/4480-135-0x00000000057E0000-0x0000000005872000-memory.dmp

    Filesize

    584KB

  • memory/4480-136-0x0000000005790000-0x000000000579A000-memory.dmp

    Filesize

    40KB

  • memory/4480-137-0x0000000005970000-0x0000000005980000-memory.dmp

    Filesize

    64KB

  • memory/4480-138-0x0000000005970000-0x0000000005980000-memory.dmp

    Filesize

    64KB

  • memory/4480-139-0x0000000008AB0000-0x0000000008B4C000-memory.dmp

    Filesize

    624KB