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Overview

overview

10

Static

static

10

2024-02-18...er.exe

windows7-x64

9

2024-02-18...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/02/2024, 03:39 UTC

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General

  • Target

    2024-02-18_71e70005cc72e17e2c50c9f7937bc2d0_cryptolocker.exe

  • Size

    36KB

  • MD5

    71e70005cc72e17e2c50c9f7937bc2d0

  • SHA1

    6029d6ca2bf1dcf7401bd08568b9297bba43304b

  • SHA256

    4a37718ed1d5562998067917a085fd11e360c2026b141e12df963b878bc22a15

  • SHA512

    0103bdefc90ea3bcd5aa12433e1ae98fbd5f6c038116dd93220508f58822a9c7370905450f1f8e8d64fe01dfcf259f5bc5ecdc118c9f4849a760fbc94e27b373

  • SSDEEP

    768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCW:X6QFElP6n+gJQMOtEvwDpjBmzDUW

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\2024-02-18_71e70005cc72e17e2c50c9f7937bc2d0_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-18_71e70005cc72e17e2c50c9f7937bc2d0_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:976
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3924

Network

  • 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
    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
    emrlogistics.com
    asih.exe
    Remote address:
    8.8.8.8:53
    Request
    emrlogistics.com
    IN A
    Response
    emrlogistics.com
    IN CNAME
    traff-4.hugedomains.com
    traff-4.hugedomains.com
    IN CNAME
    hdr-nlb8-39c51fa8696874ee.elb.us-east-1.amazonaws.com
    hdr-nlb8-39c51fa8696874ee.elb.us-east-1.amazonaws.com
    IN A
    52.86.6.113
    hdr-nlb8-39c51fa8696874ee.elb.us-east-1.amazonaws.com
    IN A
    3.94.41.167
  • 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
    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
    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
    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
    26.178.89.13.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    26.178.89.13.in-addr.arpa
    IN PTR
    Response
  • 52.86.6.113:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.94.41.167:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 52.86.6.113:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.94.41.167:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 52.86.6.113:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.94.41.167:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 52.86.6.113:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.94.41.167:443
    emrlogistics.com
    asih.exe
    52 B
     1
  • 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
    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
    emrlogistics.com
    dns
    asih.exe
    62 B
     192 B
     1
    1

    DNS Request

    emrlogistics.com

    DNS Response

    52.86.6.113
    3.94.41.167

  • 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
    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
    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
    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
    26.178.89.13.in-addr.arpa
    dns
    71 B
     145 B
     1
    1

    DNS Request

    26.178.89.13.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    36KB

    MD5

    3af533734b17ae1cc4e7b641a6aa6296

    SHA1

    d748204989d576c2580296ed291a726fa07d6702

    SHA256

    995860fa520c2cd039a7000e3016ae0b701e5e1ff2483a7294f85f26a54b9e1b

    SHA512

    8d014378e4bd46aebbbf0fa5bd783e683e5053390b679331c210bede59aaf314337455b154bfc2fd641dd0891df64e36e1be924c0cdcaea2444cd1afe85a172c

    Download Submit

  • memory/976-0-0x0000000002320000-0x0000000002326000-memory.dmp

    Filesize

    24KB

    Download

  • memory/976-1-0x0000000002320000-0x0000000002326000-memory.dmp

    Filesize

    24KB

    Download

  • memory/976-2-0x0000000002230000-0x0000000002236000-memory.dmp

    Filesize

    24KB

    Download

  • memory/3924-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/3924-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

    Download

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