Resubmissions

07-09-2024 15:50

240907-s948ta1epp 10

Analysis

  • max time kernel
    144s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-09-2024 15:50

General

  • Target

    c56917c40623e6f97fb1168b7586d3434b3ba23e0ddaa40ebe455ff7ab7db2ff.exe

  • Size

    6.4MB

  • MD5

    f7f25eb4fb89302ddfc596ad4dfb2907

  • SHA1

    0a6f2cffb64eef1b4f698427bd3144fb2c679f63

  • SHA256

    c56917c40623e6f97fb1168b7586d3434b3ba23e0ddaa40ebe455ff7ab7db2ff

  • SHA512

    27fdbf978393f1d41c13f36e9ce5dff79b332d9039207d21e1b6fedd7a13f42dc30cd5f06096d8cd29fb7cd97243fbb6da77abe5842cbf018ecbe0a18a23f951

  • SSDEEP

    98304:5DzbDAvp1RKnKWQEOVIx6jP4EEzC/PxWfdxFL2PbuNUde:5DzbDAvPRKvLcIxd0spqPbjde

Malware Config

Extracted

Family

cryptbot

C2

sevtv17sb.top

analforeverlovyu.top

Attributes
  • url_path

    /v1/upload.php

Signatures

  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c56917c40623e6f97fb1168b7586d3434b3ba23e0ddaa40ebe455ff7ab7db2ff.exe
    "C:\Users\Admin\AppData\Local\Temp\c56917c40623e6f97fb1168b7586d3434b3ba23e0ddaa40ebe455ff7ab7db2ff.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4644
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:4920
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2772
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2532
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2100-37-0x00000000000F0000-0x0000000000101000-memory.dmp

    Filesize

    68KB

  • memory/2532-22-0x00000000000F0000-0x0000000000101000-memory.dmp

    Filesize

    68KB

  • memory/4644-0-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/4644-3-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/4644-4-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/4644-16-0x0000000000400000-0x000000000106F000-memory.dmp

    Filesize

    12.4MB

  • memory/4920-18-0x00000000000F0000-0x0000000000101000-memory.dmp

    Filesize

    68KB

  • memory/4920-19-0x0000000075040000-0x000000007517C000-memory.dmp

    Filesize

    1.2MB