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Overview

overview

10

Static

static

10

2024-02-19...er.exe

windows7-x64

9

2024-02-19...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    145s
  • 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
    19/02/2024, 18:32 UTC

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General

  • Target

    2024-02-19_b822f3057def84b9dd03792bfaf60a7e_cryptolocker.exe

  • Size

    29KB

  • MD5

    b822f3057def84b9dd03792bfaf60a7e

  • SHA1

    cd5f78c64d230f20970224ae87130127e96451e1

  • SHA256

    32ca5329a2021e1117b7c1be86622273c560baebcc4395441c30cfdcc3295c6a

  • SHA512

    8dfcf2710bb122b30405808eca7b71f2a006e61f69fbce280a68f7c6601e66cbaa0efa0560e037faa5c339b0e25a641fe7075f67cabef2d35ca34e321badad59

  • SSDEEP

    768:q0ZziOWwULueOSdE8tOOtEvwDpjeWaJIO/xC:q0zizzOSxMOtEvwDpj/arI

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • UPX dump on OEP (original entry point) 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\2024-02-19_b822f3057def84b9dd03792bfaf60a7e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-19_b822f3057def84b9dd03792bfaf60a7e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:4408

Network

  • flag-us
    DNS
    209.205.72.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    209.205.72.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    209.205.72.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    209.205.72.20.in-addr.arpa
    IN PTR
  • flag-us
    DNS
    29.179.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    29.179.17.96.in-addr.arpa
    IN PTR
    Response
    29.179.17.96.in-addr.arpa
    IN PTR
    a96-17-179-29deploystaticakamaitechnologiescom
  • 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
    3.94.41.167
    hdr-nlb8-39c51fa8696874ee.elb.us-east-1.amazonaws.com
    IN A
    52.86.6.113
  • flag-us
    DNS
    19.53.126.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    19.53.126.40.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    217.106.137.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    217.106.137.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    97.17.167.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    97.17.167.52.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
    15.164.165.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    15.164.165.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    147.160.77.104.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    147.160.77.104.in-addr.arpa
    IN PTR
    Response
    147.160.77.104.in-addr.arpa
    IN PTR
    a104-77-160-147deploystaticakamaitechnologiescom
  • 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
    151.178.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    151.178.17.96.in-addr.arpa
    IN PTR
    Response
    151.178.17.96.in-addr.arpa
    IN PTR
    a96-17-178-151deploystaticakamaitechnologiescom
  • 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
    148.160.77.104.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    148.160.77.104.in-addr.arpa
    IN PTR
    Response
    148.160.77.104.in-addr.arpa
    IN PTR
    a104-77-160-148deploystaticakamaitechnologiescom
  • flag-us
    DNS
    10.173.189.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    10.173.189.20.in-addr.arpa
    IN PTR
    Response
  • 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
    260 B
     5
  • 8.8.8.8:53
    209.205.72.20.in-addr.arpa
    dns
    144 B
     158 B
     2
    1

    DNS Request

    209.205.72.20.in-addr.arpa

    DNS Request

    209.205.72.20.in-addr.arpa

  • 8.8.8.8:53
    29.179.17.96.in-addr.arpa
    dns
    71 B
     135 B
     1
    1

    DNS Request

    29.179.17.96.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

    3.94.41.167
    52.86.6.113

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

    DNS Request

    19.53.126.40.in-addr.arpa

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

    DNS Request

    217.106.137.52.in-addr.arpa

  • 8.8.8.8:53
    97.17.167.52.in-addr.arpa
    dns
    71 B
     145 B
     1
    1

    DNS Request

    97.17.167.52.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
    15.164.165.52.in-addr.arpa
    dns
    72 B
     146 B
     1
    1

    DNS Request

    15.164.165.52.in-addr.arpa

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

    DNS Request

    147.160.77.104.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
    151.178.17.96.in-addr.arpa
    dns
    72 B
     137 B
     1
    1

    DNS Request

    151.178.17.96.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
    148.160.77.104.in-addr.arpa
    dns
    73 B
     139 B
     1
    1

    DNS Request

    148.160.77.104.in-addr.arpa

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

    DNS Request

    10.173.189.20.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    30KB

    MD5

    402b10f8bc3fec06bf039756506a7e97

    SHA1

    883e9bc89c0eb2375e1ee36c19d0f0248ce4b5e0

    SHA256

    9e262283c15feb03dce1b2d45cce203638ea49191f3ba040611d832a371c336e

    SHA512

    a727b872075327e6fc25715991b606556104f0ceabfb81c31d3ba3c372e64aa040068c097814626d52e73fc0c6a2063769e6513af5dbd8aa8b06557ed743374c

    Download Submit

  • memory/2072-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2072-1-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

    Download

  • memory/2072-2-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

    Download

  • memory/2072-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/2072-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

    Download

  • memory/4408-21-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/4408-19-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/4408-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

    Download

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