Analysis

  • max time kernel
    0s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/02/2024, 09:03 UTC

General

  • Target

    2024-02-01_1090360d26072732ac893b6045f3a6e9_cryptolocker.exe

  • Size

    126KB

  • MD5

    1090360d26072732ac893b6045f3a6e9

  • SHA1

    464022f6d1bbac8637a97efe5e76f4da9177afd5

  • SHA256

    2a57393ee6c8be2e6f077f9fcadd9386024fa6371b42e715f459a76dbdc1f49d

  • SHA512

    ec5ec095473772f4bb5f013c94eb31777fd908a73c7683d91a769356287d9a9c37b9902e3745d17cfe701c027594153c86e7fa4067ccf1c66d796c5e15281a9d

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuBKLUYOVbvh//K:vCjsIOtEvwDpj5H9YvQd2RQ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 3 IoCs
  • Detection of Cryptolocker Samples 3 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\2024-02-01_1090360d26072732ac893b6045f3a6e9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-01_1090360d26072732ac893b6045f3a6e9_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2020

Network

  • flag-us
    DNS
    228.249.119.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    228.249.119.40.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    bestccc.com
    Remote address:
    8.8.8.8:53
    Request
    bestccc.com
    IN A
    Response
    bestccc.com
    IN A
    103.14.121.240
  • flag-us
    DNS
    240.121.14.103.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    240.121.14.103.in-addr.arpa
    IN PTR
    Response
    240.121.14.103.in-addr.arpa
    IN PTR
    10314121240-static-reversegooddomainregistrycom
  • flag-us
    DNS
    202.178.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    202.178.17.96.in-addr.arpa
    IN PTR
    Response
    202.178.17.96.in-addr.arpa
    IN PTR
    a96-17-178-202deploystaticakamaitechnologiescom
  • flag-us
    DNS
    crl.comodoca.com
    Remote address:
    8.8.8.8:53
    Request
    crl.comodoca.com
    IN A
    Response
    crl.comodoca.com
    IN CNAME
    crl.comodoca.com.cdn.cloudflare.net
    crl.comodoca.com.cdn.cloudflare.net
    IN A
    104.18.38.233
    crl.comodoca.com.cdn.cloudflare.net
    IN A
    172.64.149.23
  • flag-us
    GET
    http://crl.comodoca.com/cPanelIncCertificationAuthority.crl
    Remote address:
    104.18.38.233:80
    Request
    GET /cPanelIncCertificationAuthority.crl HTTP/1.1
    Connection: Keep-Alive
    Accept: */*
    User-Agent: Microsoft-CryptoAPI/10.0
    Host: crl.comodoca.com
    Response
    HTTP/1.1 200 OK
    Date: Thu, 01 Feb 2024 09:03:38 GMT
    Content-Type: application/pkix-crl
    Content-Length: 59932
    Connection: keep-alive
    Last-Modified: Wed, 31 Jan 2024 16:54:53 GMT
    ETag: "65ba7b5d-ea1c"
    X-CCACDN-Mirror-ID: mscrl2
    Cache-Control: max-age=14400, s-maxage=3600
    Expires: Wed, 07 Feb 2024 16:54:53 GMT
    X-CCACDN-Proxy-ID: mcdpinlb2
    X-Frame-Options: SAMEORIGIN
    CF-Cache-Status: HIT
    Age: 2491
    Accept-Ranges: bytes
    Server: cloudflare
    CF-RAY: 84e905baedcc23dc-LHR
  • flag-us
    DNS
    23.149.64.172.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    23.149.64.172.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    76.32.126.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    76.32.126.40.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    233.38.18.104.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    233.38.18.104.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    95.221.229.192.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    95.221.229.192.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    196.249.167.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    196.249.167.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    79.121.231.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    79.121.231.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    86.23.85.13.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    86.23.85.13.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    171.39.242.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    171.39.242.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    18.134.221.88.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    18.134.221.88.in-addr.arpa
    IN PTR
    Response
    18.134.221.88.in-addr.arpa
    IN PTR
    a88-221-134-18deploystaticakamaitechnologiescom
  • flag-us
    DNS
    173.178.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    173.178.17.96.in-addr.arpa
    IN PTR
    Response
    173.178.17.96.in-addr.arpa
    IN PTR
    a96-17-178-173deploystaticakamaitechnologiescom
  • flag-us
    DNS
    14.227.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    14.227.111.52.in-addr.arpa
    IN PTR
    Response
  • 103.14.121.240:443
    bestccc.com
    tls
    1.0kB
    4.1kB
    13
    9
  • 104.18.38.233:80
    http://crl.comodoca.com/cPanelIncCertificationAuthority.crl
    http
    1.4kB
    62.3kB
    27
    47

    HTTP Request

    GET http://crl.comodoca.com/cPanelIncCertificationAuthority.crl

    HTTP Response

    200
  • 8.8.8.8:53
    228.249.119.40.in-addr.arpa
    dns
    73 B
    159 B
    1
    1

    DNS Request

    228.249.119.40.in-addr.arpa

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

    DNS Request

    bestccc.com

    DNS Response

    103.14.121.240

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

    DNS Request

    240.121.14.103.in-addr.arpa

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

    DNS Request

    202.178.17.96.in-addr.arpa

  • 8.8.8.8:53
    crl.comodoca.com
    dns
    62 B
    143 B
    1
    1

    DNS Request

    crl.comodoca.com

    DNS Response

    104.18.38.233
    172.64.149.23

  • 8.8.8.8:53
    23.149.64.172.in-addr.arpa
    dns
    72 B
    134 B
    1
    1

    DNS Request

    23.149.64.172.in-addr.arpa

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

    DNS Request

    76.32.126.40.in-addr.arpa

  • 8.8.8.8:53
    233.38.18.104.in-addr.arpa
    dns
    72 B
    134 B
    1
    1

    DNS Request

    233.38.18.104.in-addr.arpa

  • 8.8.8.8:53
    95.221.229.192.in-addr.arpa
    dns
    73 B
    144 B
    1
    1

    DNS Request

    95.221.229.192.in-addr.arpa

  • 8.8.8.8:53
    196.249.167.52.in-addr.arpa
    dns
    73 B
    147 B
    1
    1

    DNS Request

    196.249.167.52.in-addr.arpa

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

    DNS Request

    79.121.231.20.in-addr.arpa

  • 8.8.8.8:53
    86.23.85.13.in-addr.arpa
    dns
    70 B
    144 B
    1
    1

    DNS Request

    86.23.85.13.in-addr.arpa

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

    DNS Request

    171.39.242.20.in-addr.arpa

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

    DNS Request

    18.134.221.88.in-addr.arpa

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

    DNS Request

    173.178.17.96.in-addr.arpa

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

    DNS Request

    14.227.111.52.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    9KB

    MD5

    2f48a912ba52708d11062901eb4c69d0

    SHA1

    b76949fcd8e9ad26116ae6cef02bc6a0beb18917

    SHA256

    aa4a538298bdab3ae2786429cf8d0fdc462bc80a4fd1fc124faaa982c344b2e6

    SHA512

    c995f8d89c50275b12249762d7327f778aeeca7789a002902ed814973915a0200f4363b92ac184c0ee4f23df41792b0035b4425ce6bb759572e1d7c955bd4ebb

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

    Filesize

    59KB

    MD5

    9cd964c28ff85e4a892cd7f05d20f981

    SHA1

    2afbc655be67ca97d8cd18b3b1f443d4d8b84124

    SHA256

    33efa8c814a94ef97322f6c49e75ba61c05f8458e6cef1f5af9834a0edf398b0

    SHA512

    62a2fdc59d9eb364597a7f044851362ef2785139578d6305a0866dba6310f208f28f01449870fb1285b0f9a9156d241519a0c891fbceaa9829f66d14e3b01c90

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

    Filesize

    57KB

    MD5

    adda64a6e60673a2d42acd2974669539

    SHA1

    9e612b39bec68e803fc520828b107ddf39060317

    SHA256

    3f5ee6383a6d5845776064e2b52f895af21c87e0cfbb3472012ca2abd41310b2

    SHA512

    2669a3f9c48e8c933bdb2ef3e31981f4cb56bdb18c1f3f89aad9e93f117c6d8c515020eb14cc9be8a2d82ef9f476667e25edad0edb6efcb63488407302f5bce2

  • memory/1340-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

    Filesize

    24KB

  • memory/1340-1-0x0000000002280000-0x0000000002286000-memory.dmp

    Filesize

    24KB

  • memory/1340-0-0x0000000002280000-0x0000000002286000-memory.dmp

    Filesize

    24KB

  • memory/2020-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/2020-23-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

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