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Analysis

  • max time kernel
    120s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    21/07/2023, 12:45

General

  • Target

    Cotizacion ##5033900.exe

  • Size

    623KB

  • MD5

    e5e34926801d009fd9345c1221cf61d1

  • SHA1

    00dc97afe9b99f0f4c9c6be374ac0a82958028fd

  • SHA256

    fd36434871eb55ee3d9f78ee0fd63f26c915f8d5a7d3848ef6ffddcac75893cc

  • SHA512

    b7c2d2e7194d2a798abdf6e93f6fd1ded8f01261c35cd474c01684f7a10a791dcbd09625b094c2a8ac2f8b458754f1a8e2e52954de07a187425483b88755df91

  • SSDEEP

    12288:2Wc/bUYIsYolnr8+HrF2pJSlghtqle1De7wubknDIlLS6YfiYh:diXrYoxHrF2pLql2IwubDsa

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mtbooks.com.mx
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ^QGUcHQjx3

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 7 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 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Cotizacion ##5033900.exe
    "C:\Users\Admin\AppData\Local\Temp\Cotizacion ##5033900.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Users\Admin\AppData\Local\Temp\Cotizacion ##5033900.exe
      "C:\Users\Admin\AppData\Local\Temp\Cotizacion ##5033900.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1252-55-0x0000000074ED0000-0x00000000755BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1252-54-0x0000000000040000-0x00000000000E2000-memory.dmp

    Filesize

    648KB

  • memory/1252-56-0x0000000000600000-0x0000000000640000-memory.dmp

    Filesize

    256KB

  • memory/1252-57-0x00000000004A0000-0x00000000004B0000-memory.dmp

    Filesize

    64KB

  • memory/1252-58-0x0000000074ED0000-0x00000000755BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1252-59-0x0000000000600000-0x0000000000640000-memory.dmp

    Filesize

    256KB

  • memory/1252-60-0x00000000004F0000-0x00000000004FA000-memory.dmp

    Filesize

    40KB

  • memory/1252-61-0x0000000004E60000-0x0000000004EC2000-memory.dmp

    Filesize

    392KB

  • memory/1252-73-0x0000000074ED0000-0x00000000755BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-64-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2700-63-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2700-66-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2700-68-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2700-70-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2700-62-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2700-72-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2700-75-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2700-76-0x0000000074E50000-0x000000007553E000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-77-0x0000000004850000-0x0000000004890000-memory.dmp

    Filesize

    256KB

  • memory/2700-78-0x0000000074E50000-0x000000007553E000-memory.dmp

    Filesize

    6.9MB

  • memory/2700-79-0x0000000004850000-0x0000000004890000-memory.dmp

    Filesize

    256KB