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Overview

overview

10

Static

static

10

2024-02-23...er.exe

windows7-x64

9

2024-02-23...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/02/2024, 09:44 UTC

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Report Analysis Logs

General

  • Target

    2024-02-23_4bf641e356936e76c7232d0159b7d8eb_cryptolocker.exe

  • Size

    59KB

  • MD5

    4bf641e356936e76c7232d0159b7d8eb

  • SHA1

    3a536380793f3b004a57fa7326251653020e4a8a

  • SHA256

    9ac7d646bd5d07671557665871199f9f990b73631ceb7509cc173c8e1f43064b

  • SHA512

    dd9f6c2a432fd9514b9cc204c6bd0612f859d79df461d3d907aca61054876aa9f553709414dd14a5b1be6efbef89dd3754476aaf8e4a3380a25bf9f4b6dca9df

  • SSDEEP

    1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb614MD:BbdDmjr+OtEvwDpjMD

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\2024-02-23_4bf641e356936e76c7232d0159b7d8eb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-23_4bf641e356936e76c7232d0159b7d8eb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5000
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2616

Network

  • flag-us
    DNS
    4.159.190.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    4.159.190.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    177.178.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    177.178.17.96.in-addr.arpa
    IN PTR
    Response
    177.178.17.96.in-addr.arpa
    IN PTR
    a96-17-178-177deploystaticakamaitechnologiescom
  • 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
    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
    103.169.127.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    103.169.127.40.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
    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
    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
    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
    152.78.101.95.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    152.78.101.95.in-addr.arpa
    IN PTR
    Response
    152.78.101.95.in-addr.arpa
    IN PTR
    a95-101-78-152deploystaticakamaitechnologiescom
  • flag-us
    DNS
    104.193.132.51.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    104.193.132.51.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
    208 B
     4
  • 8.8.8.8:53
    4.159.190.20.in-addr.arpa
    dns
    71 B
     157 B
     1
    1

    DNS Request

    4.159.190.20.in-addr.arpa

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

    DNS Request

    177.178.17.96.in-addr.arpa

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

    DNS Request

    43.58.199.20.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

    3.130.253.23
    3.130.204.160

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

    DNS Request

    103.169.127.40.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
    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
    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
    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
    152.78.101.95.in-addr.arpa
    dns
    72 B
     137 B
     1
    1

    DNS Request

    152.78.101.95.in-addr.arpa

  • 8.8.8.8:53
    104.193.132.51.in-addr.arpa
    dns
    73 B
     159 B
     1
    1

    DNS Request

    104.193.132.51.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    59KB

    MD5

    75610b6e7a7b7bba5ef7753744a2c2d6

    SHA1

    6c8080eef8602b725f438b3bb2d6e097b0be43aa

    SHA256

    4651225fe4560230d7d0f2c443f8fd7fc43dee812a9ed81b3e6e772abe694d2f

    SHA512

    37e0094a64ac065a1d3dfe5cdc9d100d1a6b90e87927498d94e3d66d2b4f558e3908e2678560708c54d99cb6298cc0dc0c888c89e2b1edd9c95d2aec5a530eea

    Download Submit

  • memory/2616-18-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

    Download

  • memory/2616-22-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB

    Download

  • memory/2616-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

    Download

  • memory/5000-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

    Download

  • memory/5000-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5000-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5000-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5000-21-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

    Download

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