Analysis

  • max time kernel
    135s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2023 20:04

General

  • Target

    8cc6314d22c31f9678e1a2118ace78e57302b8ff5ebb1549c991c4b79bd976d9.exe

  • Size

    795KB

  • MD5

    1378addc7c016581bb0f76dc32d0af61

  • SHA1

    35d7f0d9aa6893e4c90a7c1552568f5c27e1b638

  • SHA256

    8cc6314d22c31f9678e1a2118ace78e57302b8ff5ebb1549c991c4b79bd976d9

  • SHA512

    fba542b033428f2c1badf75a017c6df1d108af5dcccaddc6c90f993f193c45471b985993190106baecba5a29254298fba4cceab5d8df7ebda44fa38f5c6b4bab

  • SSDEEP

    12288:UCGDA23V1NyXsLdc2gJMKYWBpX6FKVEuZFhTbgnQjMJiWA2kN3R9ldtwjAPH:7GDl3kXsDZupEu31bgnQYu2kN3xdthPH

Malware Config

Extracted

Family

cryptbot

C2

http://ewzvpq52.top/gate.php

Attributes
  • payload_url

    http://biriuv07.top/tarefa.dat

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8cc6314d22c31f9678e1a2118ace78e57302b8ff5ebb1549c991c4b79bd976d9.exe
    "C:\Users\Admin\AppData\Local\Temp\8cc6314d22c31f9678e1a2118ace78e57302b8ff5ebb1549c991c4b79bd976d9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4136
    • C:\Users\Admin\AppData\Local\Temp\8cc6314d22c31f9678e1a2118ace78e57302b8ff5ebb1549c991c4b79bd976d9.exe
      "C:\Users\Admin\AppData\Local\Temp\8cc6314d22c31f9678e1a2118ace78e57302b8ff5ebb1549c991c4b79bd976d9.exe"
      2⤵
      • Maps connected drives based on registry
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\76F0.tmp

    Filesize

    32B

    MD5

    bc8f87470596daf0d93976daf3ea0138

    SHA1

    8d95a828ce42c87b0427c0a59dfab2291c493762

    SHA256

    4611793c20d45a907ee3ad40bd7f40da8aa2449a3b13f63113d55f248d928b86

    SHA512

    7a38a2e0585d423c42a3b7fb5143bfe503100ee29532bfcc13bd19820942349c013d5e17ddfd9b010b5c9df7b81cd1be65a7fd7b3fb3419004689f0e1cbe6662

  • C:\Users\Admin\AppData\Local\Temp\7BB7.tmp

    Filesize

    71KB

    MD5

    dc2b0f48d8f547d5ff7d67b371d850f0

    SHA1

    84d02ddbf478bf7cfe9ccb466362860ee18b3839

    SHA256

    0434c46910f48821a0a442b510260a3faea9404d7e6a8edd2cf44cc7dfea3890

    SHA512

    3470ae3db7053a7e606a221f97f8cadf58500a746daaa4c763d714fe99df026d1c7858aaaf6d34ec1bbaa5305f8eead00101b6a7ac6f4d457425d04bcf92e8d7

  • C:\Users\Admin\AppData\Local\Temp\9006.tmp

    Filesize

    2KB

    MD5

    dd7a4110e2dc0760efdd47ee918c0deb

    SHA1

    5ed5efe128e521023e0caf4fff9af747522c8166

    SHA256

    550ad8794d9ec26bc7e09225cb1cbe648ee7c1c2349aabec8172f08bdec26084

    SHA512

    c928725e5f010d371727aadcc057da91378a0b24c66b2848217e9186dd319b6bf09c0859d7bf523ff1736fc41591eb25662a900fbe3977b63132a0c40dcd35dc

  • memory/4656-133-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/4656-134-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/4656-135-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/4656-136-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/4656-197-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/4656-234-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/4656-235-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/4656-236-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB