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Overview

overview

10

Static

static

10

2024-02-20...er.exe

windows7-x64

9

2024-02-20...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/02/2024, 13:30 UTC

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General

  • Target

    2024-02-20_9c1f5722cd94723870bb82e5bbee914c_cryptolocker.exe

  • Size

    69KB

  • MD5

    9c1f5722cd94723870bb82e5bbee914c

  • SHA1

    f403061dacd1626a6368ea171ea7a6fe5d6a8cc9

  • SHA256

    3b79c893f0b2c417648bcf9d7d2be7a520a5edeffb776e745dff71e3ad8b44c9

  • SHA512

    6834279e08e718a57d6074f69858a57007fdd4c00c9c97ac3fdcc7fddd91633ab3bbff6ecd30a36079934b0e9d920240e8cab58aebb1b5643f6b5b59468542de

  • SSDEEP

    1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUH/:DW60sllyWOtEvwDpjwF85h

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 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\2024-02-20_9c1f5722cd94723870bb82e5bbee914c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-20_9c1f5722cd94723870bb82e5bbee914c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2188

Network

  • flag-us
    DNS
    emrlogistics.com
    asih.exe
    Remote address:
    8.8.8.8:53
    Request
    emrlogistics.com
    IN A
    Response
    emrlogistics.com
    IN CNAME
    traff-2.hugedomains.com
    traff-2.hugedomains.com
    IN CNAME
    hdr-nlb5-4e815dd67a14bf7f.elb.us-east-2.amazonaws.com
    hdr-nlb5-4e815dd67a14bf7f.elb.us-east-2.amazonaws.com
    IN A
    3.130.253.23
    hdr-nlb5-4e815dd67a14bf7f.elb.us-east-2.amazonaws.com
    IN A
    3.130.204.160
  • 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
    175.178.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    175.178.17.96.in-addr.arpa
    IN PTR
    Response
    175.178.17.96.in-addr.arpa
    IN PTR
    a96-17-178-175deploystaticakamaitechnologiescom
  • flag-us
    DNS
    14.160.190.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    14.160.190.20.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
    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
    13.86.106.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    13.86.106.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    157.123.68.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    157.123.68.40.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
    0.205.248.87.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    0.205.248.87.in-addr.arpa
    IN PTR
    Response
    0.205.248.87.in-addr.arpa
    IN PTR
    https-87-248-205-0lgwllnwnet
  • flag-us
    DNS
    48.229.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    48.229.111.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    18.173.189.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    18.173.189.20.in-addr.arpa
    IN PTR
    Response
  • 3.130.253.23:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.130.204.160:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.130.253.23:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.130.204.160:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.130.253.23:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.130.204.160:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.130.253.23:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.130.204.160:443
    emrlogistics.com
    asih.exe
    104 B
     2
  • 8.8.8.8:53
    emrlogistics.com
    dns
    asih.exe
    62 B
     192 B
     1
    1

    DNS Request

    emrlogistics.com

    DNS Response

    3.130.253.23
    3.130.204.160

  • 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
    175.178.17.96.in-addr.arpa
    dns
    72 B
     137 B
     1
    1

    DNS Request

    175.178.17.96.in-addr.arpa

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

    DNS Request

    14.160.190.20.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
    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
    13.86.106.20.in-addr.arpa
    dns
    71 B
     157 B
     1
    1

    DNS Request

    13.86.106.20.in-addr.arpa

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

    DNS Request

    157.123.68.40.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
    0.205.248.87.in-addr.arpa
    dns
    71 B
     116 B
     1
    1

    DNS Request

    0.205.248.87.in-addr.arpa

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

    DNS Request

    48.229.111.52.in-addr.arpa

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

    DNS Request

    18.173.189.20.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    69KB

    MD5

    6d49f207220729456589484a0743480c

    SHA1

    9ac8d321f66a1bcf39bce3e3fd9e611e7b8a9740

    SHA256

    83cdada5de7f1c0d041d9cedc6a2f29990af87a973d95ea6d30d7882b1e9879b

    SHA512

    57cf38306a9f731d2ea59a1d54bb47e1df626aa0d6f77a8ec4b1af3874f6e418ef3785b4c45290cf292d376306044717adf80387179372b26c785e3ef8e674b5

    Download Submit

  • memory/1068-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

    Download

  • memory/1068-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/1068-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/1068-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/1068-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

    Download

  • memory/2188-18-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

    Download

  • memory/2188-20-0x0000000002040000-0x0000000002046000-memory.dmp

    Filesize

    24KB

    Download

  • memory/2188-26-0x00000000021C0000-0x00000000021C6000-memory.dmp

    Filesize

    24KB

    Download

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