Overview

overview

10

Static

static

10

2024-02-25...er.exe

windows7-x64

9

2024-02-25...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/02/2024, 13:39 UTC

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General

  • Target

    2024-02-25_904c9c250432c7f02b9ec2c2298f8bd8_cryptolocker.exe

  • Size

    85KB

  • MD5

    904c9c250432c7f02b9ec2c2298f8bd8

  • SHA1

    bee44ac20e263841fabbe119aa5aad9d480288bf

  • SHA256

    45f0e607d56ba1e2e456bfe2b1057b2f8833cddd660ed58d72dd8b44e2f7e230

  • SHA512

    bf3116e825190b3e12aa53b9fdaf928f24a0673bf7373e63be957580fdc24cfaa179ed33265d9657eb007c53cb2b3bbe8ff903a06460b6bd5289456327c2c10e

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvxoR:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8uR

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • Detects executables built or packed with MPress PE compressor 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-25_904c9c250432c7f02b9ec2c2298f8bd8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-25_904c9c250432c7f02b9ec2c2298f8bd8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3728
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:4628

Network

  • flag-us
    DNS
    68.159.190.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    68.159.190.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    241.154.82.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    241.154.82.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    bestccc.com
    misid.exe
    Remote address:
    8.8.8.8:53
    Request
    bestccc.com
    IN A
    Response
    bestccc.com
    IN A
    103.14.121.240
  • flag-us
    DNS
    41.110.16.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    41.110.16.96.in-addr.arpa
    IN PTR
    Response
    41.110.16.96.in-addr.arpa
    IN PTR
    a96-16-110-41deploystaticakamaitechnologiescom
  • flag-us
    DNS
    43.58.199.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    43.58.199.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    50.23.12.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    50.23.12.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    56.126.166.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    56.126.166.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    217.135.221.88.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    217.135.221.88.in-addr.arpa
    IN PTR
    Response
    217.135.221.88.in-addr.arpa
    IN PTR
    a88-221-135-217deploystaticakamaitechnologiescom
  • flag-us
    DNS
    11.227.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    11.227.111.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    194.178.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    194.178.17.96.in-addr.arpa
    IN PTR
    Response
    194.178.17.96.in-addr.arpa
    IN PTR
    a96-17-178-194deploystaticakamaitechnologiescom
  • flag-us
    DNS
    233.17.178.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    233.17.178.52.in-addr.arpa
    IN PTR
    Response
  • 103.14.121.240:443
    bestccc.com
    misid.exe
    260 B
     5
  • 103.14.121.240:443
    bestccc.com
    misid.exe
    260 B
     5
  • 103.14.121.240:443
    bestccc.com
    misid.exe
    260 B
     5
  • 103.14.121.240:443
    bestccc.com
    misid.exe
    260 B
     5
  • 103.14.121.240:443
    bestccc.com
    misid.exe
    260 B
     5
  • 103.14.121.240:443
    bestccc.com
    misid.exe
    260 B
     5
  • 103.14.121.240:443
    bestccc.com
    misid.exe
    260 B
     5
  • 103.14.121.240:443
    bestccc.com
    misid.exe
    52 B
     1
  • 8.8.8.8:53
    68.159.190.20.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    68.159.190.20.in-addr.arpa

  • 8.8.8.8:53
    241.154.82.20.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    241.154.82.20.in-addr.arpa

  • 8.8.8.8:53
    bestccc.com
    dns
    misid.exe
    57 B
     73 B
     1
    1

    DNS Request

    bestccc.com

    DNS Response

    103.14.121.240

  • 8.8.8.8:53
    41.110.16.96.in-addr.arpa
    dns
    71 B
     135 B
     1
    1

    DNS Request

    41.110.16.96.in-addr.arpa

  • 8.8.8.8:53
    43.58.199.20.in-addr.arpa
    dns
    71 B
     157 B
     1
    1

    DNS Request

    43.58.199.20.in-addr.arpa

  • 8.8.8.8:53
    50.23.12.20.in-addr.arpa
    dns
    70 B
     156 B
     1
    1

    DNS Request

    50.23.12.20.in-addr.arpa

  • 8.8.8.8:53
    56.126.166.20.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    56.126.166.20.in-addr.arpa

  • 8.8.8.8:53
    217.135.221.88.in-addr.arpa
    dns
    73 B
     139 B
     1
    1

    DNS Request

    217.135.221.88.in-addr.arpa

  • 8.8.8.8:53
    11.227.111.52.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    11.227.111.52.in-addr.arpa

  • 8.8.8.8:53
    194.178.17.96.in-addr.arpa
    dns
    72 B
     137 B
     1
    1

    DNS Request

    194.178.17.96.in-addr.arpa

  • 8.8.8.8:53
    233.17.178.52.in-addr.arpa
    dns
    72 B
     146 B
     1
    1

    DNS Request

    233.17.178.52.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\misid.exe
    Filesize

    85KB

    MD5

    d05f57f1883e27c22175df88872be58a

    SHA1

    d711fc822023c78dc6f76b86c246e84fefeda781

    SHA256

    d2cb3f7468943b55707c7d57a1f9bcd35898414d5bb9837870f52b4c6090b547

    SHA512

    8091b84ef09e9e182e7d5a63b126adb57e882e0d5b1527b1687714af2ebe489185afa9d304dcfe9c963a60a77fc39b53e667d26fca1016dc3732d71b94415a34

    Download Submit

  • memory/3728-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

    Download

  • memory/3728-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/3728-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/3728-3-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

    Download

  • memory/3728-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

    Download

  • memory/4628-19-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

    Download

  • memory/4628-21-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB

    Download

  • memory/4628-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

    Download

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