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Overview

overview

10

Static

static

10

2024-01-18...er.exe

windows7-x64

9

2024-01-18...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    0s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/01/2024, 23:26 UTC

Sharing

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Report Analysis Logs

General

  • Target

    2024-01-18_da01eebe2cf63f41af0f45c730aca17b_cryptolocker.exe

  • Size

    42KB

  • MD5

    da01eebe2cf63f41af0f45c730aca17b

  • SHA1

    91a2f07fb117fd433e17bccb7e4f752a861b1a76

  • SHA256

    43e4d477ca4321f1d1aca355f9c582ce8a45ccd1b5202183fe0858b760ac1130

  • SHA512

    4e113c52c75166c07d4f8a8d3e8fb76b6526cae740610c22f85b0c646189aa22c8fd3eb9e1c6c86b1ab81faab4afd5d5c477b512a48f712ae43a5fdb979c7f2a

  • SSDEEP

    768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kxo:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XB

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 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\2024-01-18_da01eebe2cf63f41af0f45c730aca17b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-18_da01eebe2cf63f41af0f45c730aca17b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5004
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      PID:1128

Network

  • flag-us
    DNS
    73.31.126.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    73.31.126.40.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    73.31.126.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    73.31.126.40.in-addr.arpa
    IN PTR
  • flag-us
    DNS
    gemlttwi.com
    Remote address:
    8.8.8.8:53
    Request
    gemlttwi.com
    IN A
    Response
    gemlttwi.com
    IN A
    192.185.35.56
  • 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
    133.211.185.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    133.211.185.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    9.228.82.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    9.228.82.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    240.221.184.93.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    240.221.184.93.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    56.35.185.192.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    56.35.185.192.in-addr.arpa
    IN PTR
    Response
    56.35.185.192.in-addr.arpa
    IN PTR
    immacbytescom
  • 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
    205.47.74.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    205.47.74.20.in-addr.arpa
    IN PTR
    Response
  • 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
    183.142.211.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    183.142.211.20.in-addr.arpa
    IN PTR
    Response
  • 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
    154.239.44.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    154.239.44.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    183.59.114.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    183.59.114.20.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
    28.160.77.104.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    28.160.77.104.in-addr.arpa
    IN PTR
    Response
    28.160.77.104.in-addr.arpa
    IN PTR
    a104-77-160-28deploystaticakamaitechnologiescom
  • 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
    11.227.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    11.227.111.52.in-addr.arpa
    IN PTR
  • 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
    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
    tse1.mm.bing.net
    Remote address:
    8.8.8.8:53
    Request
    tse1.mm.bing.net
    IN A
    Response
    tse1.mm.bing.net
    IN CNAME
    mm-mm.bing.net.trafficmanager.net
    mm-mm.bing.net.trafficmanager.net
    IN CNAME
    dual-a-0001.a-msedge.net
    dual-a-0001.a-msedge.net
    IN A
    204.79.197.200
    dual-a-0001.a-msedge.net
    IN A
    13.107.21.200
  • flag-us
    DNS
    tse1.mm.bing.net
    Remote address:
    8.8.8.8:53
    Request
    tse1.mm.bing.net
    IN A
  • flag-us
    DNS
    7.173.189.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    7.173.189.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    7.173.189.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    7.173.189.20.in-addr.arpa
    IN PTR
  • 192.185.35.56:443
    gemlttwi.com
    tls
    1.7kB
     25.3kB
     27
    24
  • 204.79.197.200:443
    tse1.mm.bing.net
    tls
    1.2kB
     8.3kB
     15
    14
  • 204.79.197.200:443
    tse1.mm.bing.net
    tls
    77.6kB
     2.1MB
     1558
    1559
  • 204.79.197.200:443
    tse1.mm.bing.net
    tls
    1.2kB
     8.3kB
     15
    14
  • 204.79.197.200:443
    tse1.mm.bing.net
    tls
    1.2kB
     8.3kB
     15
    14
  • 204.79.197.200:443
    tse1.mm.bing.net
    tls
    1.2kB
     9.7kB
     16
    15
  • 8.8.8.8:53
    73.31.126.40.in-addr.arpa
    dns
    142 B
     157 B
     2
    1

    DNS Request

    73.31.126.40.in-addr.arpa

    DNS Request

    73.31.126.40.in-addr.arpa

  • 8.8.8.8:53
    gemlttwi.com
    dns
    58 B
     74 B
     1
    1

    DNS Request

    gemlttwi.com

    DNS Response

    192.185.35.56

  • 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
    133.211.185.52.in-addr.arpa
    dns
    73 B
     147 B
     1
    1

    DNS Request

    133.211.185.52.in-addr.arpa

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

    DNS Request

    9.228.82.20.in-addr.arpa

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

    DNS Request

    240.221.184.93.in-addr.arpa

  • 8.8.8.8:53
    56.35.185.192.in-addr.arpa
    dns
    72 B
     100 B
     1
    1

    DNS Request

    56.35.185.192.in-addr.arpa

  • 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
    205.47.74.20.in-addr.arpa
    dns
    71 B
     157 B
     1
    1

    DNS Request

    205.47.74.20.in-addr.arpa

  • 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
    183.142.211.20.in-addr.arpa
    dns
    73 B
     159 B
     1
    1

    DNS Request

    183.142.211.20.in-addr.arpa

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

    DNS Request

    154.239.44.20.in-addr.arpa

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

    DNS Request

    183.59.114.20.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
    28.160.77.104.in-addr.arpa
    dns
    72 B
     137 B
     1
    1

    DNS Request

    28.160.77.104.in-addr.arpa

  • 8.8.8.8:53
    11.227.111.52.in-addr.arpa
    dns
    144 B
     158 B
     2
    1

    DNS Request

    11.227.111.52.in-addr.arpa

    DNS Request

    11.227.111.52.in-addr.arpa

  • 8.8.8.8:53
    43.58.199.20.in-addr.arpa
    dns
    142 B
     314 B
     2
    2

    DNS Request

    43.58.199.20.in-addr.arpa

    DNS Request

    43.58.199.20.in-addr.arpa

  • 8.8.8.8:53
    tse1.mm.bing.net
    dns
    124 B
     173 B
     2
    1

    DNS Request

    tse1.mm.bing.net

    DNS Request

    tse1.mm.bing.net

    DNS Response

    204.79.197.200
    13.107.21.200

  • 8.8.8.8:53
    7.173.189.20.in-addr.arpa
    dns
    142 B
     157 B
     2
    1

    DNS Request

    7.173.189.20.in-addr.arpa

    DNS Request

    7.173.189.20.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    42KB

    MD5

    668616eb4afb5056d697b1ec4b6d4020

    SHA1

    1280a7ea7121241da8586ffdeb5cde2297c17beb

    SHA256

    4e02e1cca029acfc3a7337324ff01d87b618bfee5a7f25407538c8a5247290ed

    SHA512

    0fb31f18ad59bb657fd8313100a906ddab960cb78dec9a95420cfa99dfe5710dde864c33b4399eb4a46556c5e3420e76d9f008c881768c50c4b2d9878d5e35bb

    Download Submit

  • memory/1128-20-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5004-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5004-1-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5004-0-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

    Download

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