Analysis

  • max time kernel
    91s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-06-2023 10:06

General

  • Target

    FACTRA098765567898.exe

  • Size

    799KB

  • MD5

    b31a4d28756f8a6707e39726b0658ec8

  • SHA1

    21361d667e6446d03f4ae3b0a5b04fac9d99594f

  • SHA256

    4390dddf839f96d8587b2606617bfc5940183f54cafb1d48fc5c1986a31238cd

  • SHA512

    d6171165f4dfc4e03bda59b2ba768de44e5c6aa7e7d6b47d14437ad6f8ab53af9008fac2dec5c6e92f401a931a75539280bff150ca25b72543eeaecd23048e7f

  • SSDEEP

    24576:Ap9BqmycgiH75BlgCr8GBgagmMI/B0mrlp:Ap9Bqmycr7eCdBVFZ

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sienkakupeste.com
  • Port:
    587
  • Username:
    info@sienkakupeste.com
  • Password:
    010203sienka++
  • Email To:
    saleseuropower1@yandex.com

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • 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.

  • 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 WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FACTRA098765567898.exe
    "C:\Users\Admin\AppData\Local\Temp\FACTRA098765567898.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4340
    • C:\Users\Admin\AppData\Local\Temp\FACTRA098765567898.exe
      "C:\Users\Admin\AppData\Local\Temp\FACTRA098765567898.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3288

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\FACTRA098765567898.exe.log
    Filesize

    1KB

    MD5

    b7b9acb869ccc7f7ecb5304ec0384dee

    SHA1

    6a90751c95817903ee833d59a0abbef425a613b3

    SHA256

    8cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4

    SHA512

    7bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764

  • memory/3288-140-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/3288-143-0x0000000005590000-0x00000000055A0000-memory.dmp
    Filesize

    64KB

  • memory/3288-144-0x00000000066F0000-0x00000000068B2000-memory.dmp
    Filesize

    1.8MB

  • memory/3288-145-0x0000000005590000-0x00000000055A0000-memory.dmp
    Filesize

    64KB

  • memory/4340-133-0x0000000000E20000-0x0000000000EEC000-memory.dmp
    Filesize

    816KB

  • memory/4340-134-0x0000000005ED0000-0x0000000006474000-memory.dmp
    Filesize

    5.6MB

  • memory/4340-135-0x0000000005920000-0x00000000059B2000-memory.dmp
    Filesize

    584KB

  • memory/4340-136-0x00000000058D0000-0x00000000058DA000-memory.dmp
    Filesize

    40KB

  • memory/4340-137-0x0000000005840000-0x0000000005850000-memory.dmp
    Filesize

    64KB

  • memory/4340-138-0x0000000005840000-0x0000000005850000-memory.dmp
    Filesize

    64KB

  • memory/4340-139-0x00000000074F0000-0x000000000758C000-memory.dmp
    Filesize

    624KB