Overview

overview

10

Static

static

Masters De...on.exe

windows7_x64

10

Masters De...on.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    90s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    05-07-2022 13:27

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General

  • Target

    Masters Denomination.exe

  • Size

    467KB

  • MD5

    6709335556ae2a6fb194b90898255bb6

  • SHA1

    b2cd06ea2351229724561ed13006bb73ab53846f

  • SHA256

    2f4ff9f1d7bfe43e4f4c8925a4e93d6702b09bf1946897f5d00e0f77fdd1ce99

  • SHA512

    c3790280c6372cf22be330a46d7d17622d54c9fe2011ce0f2d12e78e892122235da68d9da9153605b873569d32b2d4b31144680ab761c5e74349c99f1d383562

Score
10/10
snakekeyloggercollectionkeyloggerspywarestealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:     smtp
  • Host:
    mail.gaoyang-county-ycm.com
  • Port:
    26
  • Username:
    info@gaoyang-county-ycm.com
  • Password:
    nb34m5bf
  • Email To:
    info@gaoyang-county-ycm.com

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

    stealerkeyloggersnakekeylogger
  • Snake Keylogger Payload 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Masters Denomination.exe
    "C:\Users\Admin\AppData\Local\Temp\Masters Denomination.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Users\Admin\AppData\Local\Temp\Masters Denomination.exe
      "{path}"
      2⤵
        PID:1560
      • C:\Users\Admin\AppData\Local\Temp\Masters Denomination.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1128

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

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

      1KB

      MD5

      84e77a587d94307c0ac1357eb4d3d46f

      SHA1

      83cc900f9401f43d181207d64c5adba7a85edc1e

      SHA256

      e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

      SHA512

      aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

      Download Submit
    • memory/1128-136-0x0000000000000000-mapping.dmp
      Download
    • memory/1128-137-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

      Download
    • memory/1128-139-0x0000000006B10000-0x0000000006CD2000-memory.dmp
      Filesize

      1.8MB

      Download
    • memory/1560-135-0x0000000000000000-mapping.dmp
      Download
    • memory/2512-130-0x00000000009E0000-0x0000000000A5A000-memory.dmp
      Filesize

      488KB

      Download
    • memory/2512-131-0x00000000058D0000-0x0000000005E74000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/2512-132-0x0000000005400000-0x0000000005492000-memory.dmp
      Filesize

      584KB

      Download
    • memory/2512-133-0x0000000005540000-0x00000000055DC000-memory.dmp
      Filesize

      624KB

      Download
    • memory/2512-134-0x00000000054B0000-0x00000000054BA000-memory.dmp
      Filesize

      40KB

      Download