Analysis

  • max time kernel
    145s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    17-10-2024 17:21

General

  • Target

    dfb56dd84ad084bc95ee46c5a929e9e7.exe

  • Size

    5.8MB

  • MD5

    dfb56dd84ad084bc95ee46c5a929e9e7

  • SHA1

    186f6b6b388ee03bf6fbdb14dc9344ae44481e0a

  • SHA256

    5651d52584addf82b565cb5370982ebb42d02ea40a93a9e511092fb582005df4

  • SHA512

    786644a3d06b9c52f538d8e08544a81f95de21d83b45a3a8a04d73fe581063260e2d6214b1a295c2db079c6cde8fba002e5b318705a84477c046bf8634b4e24b

  • SSDEEP

    49152:1rRLdd8yBJKgiqsIU6wARbqbM2yw0uvwcQMhwWjTjQA9pZx2m3vfI4chxGeO23nT:1vJjmrkMVyw0eNhwh

Malware Config

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.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 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 2 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfb56dd84ad084bc95ee46c5a929e9e7.exe
    "C:\Users\Admin\AppData\Local\Temp\dfb56dd84ad084bc95ee46c5a929e9e7.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:596
    • 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:600
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {7AF4603C-4905-463A-9E5C-C6A588A9F725} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/596-27-0x0000000000960000-0x0000000000972000-memory.dmp

    Filesize

    72KB

  • memory/596-28-0x00000000754B0000-0x00000000755E4000-memory.dmp

    Filesize

    1.2MB

  • memory/1792-40-0x0000000000960000-0x0000000000972000-memory.dmp

    Filesize

    72KB

  • memory/2372-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp

    Filesize

    6.7MB

  • memory/2372-9-0x0000000000DE0000-0x00000000013A9000-memory.dmp

    Filesize

    5.8MB

  • memory/2372-24-0x0000000000DE0000-0x00000000013A9000-memory.dmp

    Filesize

    5.8MB