Analysis

  • max time kernel
    144s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-09-2024 07:40

General

  • Target

    2c74960436b0ad3e564f0a0a3dc5fbc6dcfd167fa1409fbf5fe36a37af8027b3.exe

  • Size

    7.2MB

  • MD5

    a2b2178ff8d9e79623eb59ad897cb8ed

  • SHA1

    6e3d9d4174b4c32aede0940669b858e95e8ef835

  • SHA256

    2c74960436b0ad3e564f0a0a3dc5fbc6dcfd167fa1409fbf5fe36a37af8027b3

  • SHA512

    080fbb3645967515186aeb3d20e714bc7bb12f4f9a408826a299d30f96d347eea0ae840bf30dd3dd51580a23e26802dab29782b76c88eb191052f80f8b4616c0

  • SSDEEP

    98304:QsmhiMn1iZlNHePwSB2ptG4dOuHWw5QLXiQO3zneSJkvieklpIN47AtC486fa0FV:SNu7HePorG4775QLyDznrEzQ7l4nnV

Malware Config

Extracted

Family

cryptbot

C2

eihtvf18vs.top

analforeverlovyu.top

Attributes
  • url_path

    /v1/upload.php

Signatures

  • CryptBot

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

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 10 IoCs
  • Reads user/profile data of web browsers 3 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 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c74960436b0ad3e564f0a0a3dc5fbc6dcfd167fa1409fbf5fe36a37af8027b3.exe
    "C:\Users\Admin\AppData\Local\Temp\2c74960436b0ad3e564f0a0a3dc5fbc6dcfd167fa1409fbf5fe36a37af8027b3.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe"
      2⤵
      • Executes dropped EXE
      PID:2184
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious use of WriteProcessMemory
      PID:2352
      • C:\Users\Admin\AppData\Local\Temp\service123.exe
        "C:\Users\Admin\AppData\Local\Temp\service123.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2712
      • 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
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2624
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {981E9E6D-F59A-47E1-A491-C8B40E2FE2EF} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:940
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe

    Filesize

    17.6MB

    MD5

    49b80660895dcbb56e08d7d384ff61f4

    SHA1

    3ecf06f9eebe08bb1f515e8e7749ee3b66230626

    SHA256

    f230810eb32e01c9625f5c719bda9b4eff9b7b5ff891483c3d0717e5663db11d

    SHA512

    4608af7ce0f2d3ed295a43a74b2a4115209b95478e17e8c7395e3e6815cd233ca15d8032352524ac6742010b42499c1c07f3c03d554b4c2943325753602fd3de

  • \Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe

    Filesize

    6.3MB

    MD5

    609e9de6532f48d4f7f07682df6cde91

    SHA1

    7c9840717a3611f0694d4cc3df1df48195b1aafe

    SHA256

    d0707c41dd76048750c09129c112771850dac65b78eff404457b5dd23bc9d92c

    SHA512

    fbf734d7ef66548da1a9f35479d19c7b76896d2112cd9731391cd9daed52ee41d5769bef8c396511262cfb03015ebfbdeda1ea017d23ce44704d51bb104fa740

  • memory/940-45-0x00000000010B0000-0x00000000010C1000-memory.dmp

    Filesize

    68KB

  • memory/2144-60-0x00000000010B0000-0x00000000010C1000-memory.dmp

    Filesize

    68KB

  • memory/2184-9-0x000000013FD80000-0x0000000140F80000-memory.dmp

    Filesize

    18.0MB

  • memory/2352-24-0x0000000000400000-0x000000000106B000-memory.dmp

    Filesize

    12.4MB

  • memory/2352-25-0x0000000000400000-0x000000000106B000-memory.dmp

    Filesize

    12.4MB

  • memory/2352-37-0x0000000000400000-0x000000000106B000-memory.dmp

    Filesize

    12.4MB

  • memory/2712-40-0x00000000010B0000-0x00000000010C1000-memory.dmp

    Filesize

    68KB

  • memory/2712-41-0x00000000742E0000-0x000000007441C000-memory.dmp

    Filesize

    1.2MB