Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-01-2025 18:47

General

  • Target

    d82f9b6bf20b0c9f1a1bb556275d7b7a23544136672f51bdbe19ce4f70cd2e87.exe

  • Size

    3.2MB

  • MD5

    17aa63a6b2374f655509ccf20a716b66

  • SHA1

    4bc36e5e10d3437fd3cf00c0f43a3c77246c7bd4

  • SHA256

    d82f9b6bf20b0c9f1a1bb556275d7b7a23544136672f51bdbe19ce4f70cd2e87

  • SHA512

    753eb6bdd1bba70fd6c3536dd720820bb5fb6e9eb11746533dced21e5974fd3962b7423fcd2379212847a0853359ec531f694d9dde2b4c0a9096c503c3e96422

  • SSDEEP

    98304:ZsBzPpbyP3yujSOGrmXD7IIuo1kkIQgtci:qhbM3yOSzQvIIuoxgth

Malware Config

Extracted

Family

cryptbot

Signatures

  • CryptBot

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

  • Cryptbot family
  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Embeds OpenSSL 1 IoCs

    Embeds OpenSSL, may be used to circumvent TLS interception.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d82f9b6bf20b0c9f1a1bb556275d7b7a23544136672f51bdbe19ce4f70cd2e87.exe
    "C:\Users\Admin\AppData\Local\Temp\d82f9b6bf20b0c9f1a1bb556275d7b7a23544136672f51bdbe19ce4f70cd2e87.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2340
    • 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:2476
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"
      2⤵
      • Enumerates VirtualBox registry keys
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:7968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    628KB

    MD5

    51c3f33163cb118d7cd1506648d8ea69

    SHA1

    2f37ac854cea300577e6de102e1c699a87f2178d

    SHA256

    92a5600741e66bba6153e2b536781416080e5338d703c2de8deb13ee4788dad8

    SHA512

    4816cd986a5f423ebdabb11230437f12394433e69c0bda9e99a0028fcf04ff68db10941ffcca7a6db24e850f3f55b0e81c4df9edc2ba31d204d5925c8a636a3f

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

    Filesize

    7.5MB

    MD5

    01c91b18bb9f718a369b0f08e8eadcaa

    SHA1

    a4fab291130875950ecc0f58dcc7744c3e7181cf

    SHA256

    7da575062afcd38a4c475e7e921a1f2373e3a04752ed184a0dc3b91eb3752a1f

    SHA512

    6bac4a871c2a7a6b7f90a4cd76cbca08fd31d4de92f69328725d7d70f8a44ad3cffdc787abf54f996a9e3b14638049469d70f9feac9e2b6cb497e7f866841564

  • memory/2476-61-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-23-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-13-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2476-17-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-19-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-77-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-11-0x0000000000380000-0x0000000000422000-memory.dmp

    Filesize

    648KB

  • memory/2476-55-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-37-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-25-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-15-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-14-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-75-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-73-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-71-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-69-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-67-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-57-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-65-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-12-0x000000001BC40000-0x000000001BD38000-memory.dmp

    Filesize

    992KB

  • memory/2476-63-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-53-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-51-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-49-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-48-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-45-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-43-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-41-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-39-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-35-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-33-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-31-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-29-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-27-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-59-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-2617-0x00000000022A0000-0x00000000022EC000-memory.dmp

    Filesize

    304KB

  • memory/2476-2616-0x00000000021B0000-0x0000000002206000-memory.dmp

    Filesize

    344KB

  • memory/2476-21-0x000000001BC40000-0x000000001BD34000-memory.dmp

    Filesize

    976KB

  • memory/2476-2618-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2476-10-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp

    Filesize

    4KB