Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-10-2024 00:19

General

  • Target

    9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe

  • Size

    9.2MB

  • MD5

    678e3ffbb85b7fea9f671d3223e6d360

  • SHA1

    0a6895a902dbc2e5189cdac7f87d4f1b33a496d6

  • SHA256

    9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982

  • SHA512

    19bdf511b7189eba50962973048688406224a368261aae897fa2a9fcf2f63b5294ea2315de02455c2ff381e7b829cab0c0e363a65c16e0ecd9c4bccddbb99bb0

  • SSDEEP

    196608:RNbjuEPa/rnIVl3n403gwmPULMYJwEULY6fbXTU:fPuYUzg340tXd6bg

Malware Config

Extracted

Family

lumma

C2

https://drawwyobstacw.sbs

https://condifendteu.sbs

https://ehticsprocw.sbs

https://vennurviot.sbs

https://resinedyw.sbs

https://enlargkiw.sbs

https://allocatinow.sbs

https://mathcucom.sbs

https://endureferrar.buzz

Signatures

  • CryptBot

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

  • Detects CryptBot payload 1 IoCs

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

  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 3 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe
    "C:\Users\Admin\AppData\Local\Temp\9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2784
    • 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
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2888
      • C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
        "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:3572
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious use of WriteProcessMemory
      PID:3748
      • C:\Users\Admin\AppData\Local\Temp\service123.exe
        "C:\Users\Admin\AppData\Local\Temp\service123.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4280
      • 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:4764
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:3900
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:4292

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    24.3MB

    MD5

    d3107995db5c128ad78b0e80ee539af5

    SHA1

    e46f9273b5148834a5a30a4a94449cf0a87d8d20

    SHA256

    215f6f5f337b4f0ca96c928ccf11824147c6cd84f937d69d614a229235dca5fa

    SHA512

    5f42503e08cbb005aa6cc901bae83e170ddacda79736c538a60b21bec649018cee919b1cc8d795a5d6c8210ad98be8dc1c0b287409b369688471bc743cde0a4d

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

    Filesize

    7.2MB

    MD5

    52cca4535026d44d04230373590f57fa

    SHA1

    10c8b3e51a71d8adca731b985c34163a320b32c4

    SHA256

    ac35fc427952d4a283f69a51c9a166e61bc72072177f6aabbee5a62fe9ece2a0

    SHA512

    54233882c2a8e7ed26d649527739ff28be185e8b0f62e66addef28a1638a0ced3614cb2d86a7691bf32f985541cd8674644b128e135f6bf7d5258a55c1336c41

  • memory/3572-18-0x00000000002B0000-0x000000000030B000-memory.dmp

    Filesize

    364KB

  • memory/3572-22-0x00000000002B0000-0x000000000030B000-memory.dmp

    Filesize

    364KB

  • memory/3572-25-0x00000000002B0000-0x000000000030B000-memory.dmp

    Filesize

    364KB

  • memory/3572-19-0x00000000002B0000-0x000000000030B000-memory.dmp

    Filesize

    364KB

  • memory/3748-33-0x0000000069CC0000-0x000000006A377000-memory.dmp

    Filesize

    6.7MB

  • memory/3748-42-0x0000000000DE0000-0x000000000150E000-memory.dmp

    Filesize

    7.2MB

  • memory/3748-55-0x0000000000DE0000-0x000000000150E000-memory.dmp

    Filesize

    7.2MB

  • memory/3900-63-0x0000000000530000-0x0000000000542000-memory.dmp

    Filesize

    72KB

  • memory/4280-57-0x0000000000530000-0x0000000000542000-memory.dmp

    Filesize

    72KB

  • memory/4280-58-0x0000000073B00000-0x0000000073C34000-memory.dmp

    Filesize

    1.2MB

  • memory/4292-76-0x0000000000530000-0x0000000000542000-memory.dmp

    Filesize

    72KB