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Overview

overview

10

Static

static

10

2024-04-05...er.exe

windows7-x64

9

2024-04-05...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 23:39 UTC

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General

  • Target

    2024-04-05_ddc0b1aef25ddb1524803ffaede3323c_cryptolocker.exe

  • Size

    40KB

  • MD5

    ddc0b1aef25ddb1524803ffaede3323c

  • SHA1

    dc84e40cf619455fbc36a5b38d228a59c4dffc67

  • SHA256

    862e05a33b80e4bc70e5afb64cf742930c2b54689d8743f5d51aadee1c8df598

  • SHA512

    e5255750b2264d6dc025c2de8b8154787155b4983c75fcf7a5f00cf7307146f64eb257cb33a6ffbcc9512bba015386c2b7a43e7f4db8485fac640ce9798f7fa5

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRYzv:m5nkFNMOtEvwDpjG8hhXyzv

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • Checks computer location settings 2 TTPs 2 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
    evasionspywaretrojan
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-05_ddc0b1aef25ddb1524803ffaede3323c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-05_ddc0b1aef25ddb1524803ffaede3323c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5032
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:3896

Network

  • flag-us
    DNS
    149.220.183.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    149.220.183.52.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
    114.136.73.23.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    114.136.73.23.in-addr.arpa
    IN PTR
    Response
    114.136.73.23.in-addr.arpa
    IN PTR
    a23-73-136-114deploystaticakamaitechnologiescom
  • flag-in
    GET
    https://bestccc.com/hr/ho2.exe
    misid.exe
    Remote address:
    103.14.121.240:443
    Request
    GET /hr/ho2.exe HTTP/1.1
    Accept: text/*, application/*
    User-Agent: Updates downloader
    Host: bestccc.com
    Cache-Control: no-cache
    Response
    HTTP/1.1 404 Not Found
    Date: Fri, 05 Apr 2024 23:38:37 GMT
    Server: Apache/2
    Content-Length: 315
    Content-Type: text/html; charset=iso-8859-1
  • 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
    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
    64.159.190.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    64.159.190.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    crl.comodoca.com
    misid.exe
    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
    misid.exe
    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: Fri, 05 Apr 2024 23:40:17 GMT
    Content-Type: application/pkix-crl
    Content-Length: 61534
    Connection: keep-alive
    Last-Modified: Fri, 05 Apr 2024 00:19:34 GMT
    Expires: Fri, 12 Apr 2024 00:19:34 GMT
    Etag: "99afe0628383dbc432595317754f45fb668a182f"
    Cache-Control: max-age=601109,s-maxage=3600,public,no-transform,must-revalidate
    X-CCACDN-Proxy-ID: mcdpinlb4
    X-Frame-Options: SAMEORIGIN
    CF-Cache-Status: HIT
    Age: 1291
    Accept-Ranges: bytes
    Server: cloudflare
    CF-RAY: 86fd61e21dc5635b-LHR
  • 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
    150.1.37.23.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    150.1.37.23.in-addr.arpa
    IN PTR
    Response
    150.1.37.23.in-addr.arpa
    IN PTR
    a23-37-1-150deploystaticakamaitechnologiescom
  • flag-us
    DNS
    26.165.165.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    26.165.165.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    198.187.3.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    198.187.3.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    130.118.77.104.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    130.118.77.104.in-addr.arpa
    IN PTR
    Response
    130.118.77.104.in-addr.arpa
    IN PTR
    a104-77-118-130deploystaticakamaitechnologiescom
  • flag-us
    DNS
    112.136.73.23.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    112.136.73.23.in-addr.arpa
    IN PTR
    Response
    112.136.73.23.in-addr.arpa
    IN PTR
    a23-73-136-112deploystaticakamaitechnologiescom
  • flag-us
    DNS
    22.236.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    22.236.111.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    209.143.182.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    209.143.182.52.in-addr.arpa
    IN PTR
    Response
  • 103.14.121.240:443
    https://bestccc.com/hr/ho2.exe
    tls, http
    misid.exe
    1.1kB
     5.8kB
     13
    9

    HTTP Request

    GET https://bestccc.com/hr/ho2.exe

    HTTP Response

    404
  • 104.18.38.233:80
    http://crl.comodoca.com/cPanelIncCertificationAuthority.crl
    http
    misid.exe
    1.4kB
     64.0kB
     27
    48

    HTTP Request

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

    HTTP Response

    200
  • 8.8.8.8:53
    149.220.183.52.in-addr.arpa
    dns
    73 B
     147 B
     1
    1

    DNS Request

    149.220.183.52.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
    114.136.73.23.in-addr.arpa
    dns
    72 B
     137 B
     1
    1

    DNS Request

    114.136.73.23.in-addr.arpa

  • 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
    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
    64.159.190.20.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    64.159.190.20.in-addr.arpa

  • 8.8.8.8:53
    crl.comodoca.com
    dns
    misid.exe
    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
    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
    150.1.37.23.in-addr.arpa
    dns
    70 B
     133 B
     1
    1

    DNS Request

    150.1.37.23.in-addr.arpa

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

    DNS Request

    26.165.165.52.in-addr.arpa

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

    DNS Request

    198.187.3.20.in-addr.arpa

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

    DNS Request

    130.118.77.104.in-addr.arpa

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

    DNS Request

    112.136.73.23.in-addr.arpa

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

    DNS Request

    22.236.111.52.in-addr.arpa

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

    DNS Request

    209.143.182.52.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    41KB

    MD5

    c52fa354401eff42f7cf0bf7de3039b3

    SHA1

    ba880d3dfcf072592e7973a0e986c6506e92dd4b

    SHA256

    26de0ba77ae07fe4ed9324d884e595493a54c45e9cfb2db093ca0eedf810728a

    SHA512

    8e4a817922c10910648db06f725a6443064622206d458f06899d421f6215d7e3e1f2dc31b1d04d5b492487555aa1a433c2029a71654810b982074f4052742be5

    Download Submit

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

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    Download Submit

  • memory/3896-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/3896-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/3896-22-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/3896-49-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/5032-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/5032-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5032-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5032-3-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5032-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

    Download

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