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Overview

overview

10

Static

static

10

2024-04-17...er.exe

windows7-x64

9

2024-04-17...er.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/04/2024, 08:25 UTC

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General

  • Target

    2024-04-17_2b8af465f4012923be039a9b9198dbae_cryptolocker.exe

  • Size

    67KB

  • MD5

    2b8af465f4012923be039a9b9198dbae

  • SHA1

    95f344baa57ec2f29f78e00c57b008ac647524ff

  • SHA256

    44fe96b6e4a887dc729214010f83212875a6f911549ba69713fbd2b3428232a1

  • SHA512

    b4adca6db2b3d6c649009e1aecc362d6e1363f13b80ee3503582247ed8e6c15316290228dd535c5aee9b5070dbb4cbf84b4c911df1424e788d4026869cdab349

  • SSDEEP

    768:quVbxjgQNQXtckstOOtEvwDpjAaDOK6PsED3VK2+ZtyOjgO4r9vFAg2rq6W1A1P+:quJu9cvMOtEvwDpjWYTjipvF2bx1PQA+

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • 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\2024-04-17_2b8af465f4012923be039a9b9198dbae_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-17_2b8af465f4012923be039a9b9198dbae_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:400
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:740

Network

  • flag-us
    DNS
    8.8.8.8.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    8.8.8.8.in-addr.arpa
    IN PTR
    Response
    8.8.8.8.in-addr.arpa
    IN PTR
    dnsgoogle
  • 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
    249.197.17.2.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    249.197.17.2.in-addr.arpa
    IN PTR
    Response
    249.197.17.2.in-addr.arpa
    IN PTR
    a2-17-197-249deploystaticakamaitechnologiescom
  • 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-3.hugedomains.com
    traff-3.hugedomains.com
    IN CNAME
    hdr-nlb4-0bbd2e21834cb637.elb.us-east-2.amazonaws.com
    hdr-nlb4-0bbd2e21834cb637.elb.us-east-2.amazonaws.com
    IN A
    3.18.7.81
    hdr-nlb4-0bbd2e21834cb637.elb.us-east-2.amazonaws.com
    IN A
    3.19.116.195
  • flag-us
    DNS
    241.154.82.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    241.154.82.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    26.35.223.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    26.35.223.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    21.114.53.23.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    21.114.53.23.in-addr.arpa
    IN PTR
    Response
    21.114.53.23.in-addr.arpa
    IN PTR
    a23-53-114-21deploystaticakamaitechnologiescom
  • 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
    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
    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
    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
    14.227.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    14.227.111.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    240.197.17.2.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    240.197.17.2.in-addr.arpa
    IN PTR
    Response
    240.197.17.2.in-addr.arpa
    IN PTR
    a2-17-197-240deploystaticakamaitechnologiescom
  • 3.18.7.81:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.19.116.195:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.18.7.81:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.19.116.195:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.18.7.81:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.19.116.195:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.18.7.81:443
    emrlogistics.com
    asih.exe
    260 B
     5
  • 3.19.116.195:443
    emrlogistics.com
    asih.exe
    52 B
     1
  • 8.8.8.8:53
    8.8.8.8.in-addr.arpa
    dns
    66 B
     90 B
     1
    1

    DNS Request

    8.8.8.8.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
    249.197.17.2.in-addr.arpa
    dns
    71 B
     135 B
     1
    1

    DNS Request

    249.197.17.2.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

    3.18.7.81
    3.19.116.195

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

    DNS Request

    241.154.82.20.in-addr.arpa

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

    DNS Request

    26.35.223.20.in-addr.arpa

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

    DNS Request

    21.114.53.23.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
    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
    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
    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
    14.227.111.52.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    14.227.111.52.in-addr.arpa

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

    DNS Request

    240.197.17.2.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    67KB

    MD5

    5e2926e876adb743f82e8023c7d20d1c

    SHA1

    5284b2f7252b0d2bea06235500fb29d71d187165

    SHA256

    79e7610841416fb28023a975c81777f85079fb4e3aaba276cb1d62e4c70a6816

    SHA512

    3b714908a657ccf9083d015dd42b02c6b0203c570c953b24c73063b82a6d820d9469479a7fd5b073981b61f850f4626f5e327f180001c4104d23b0e08a9796b2

    Download Submit

  • memory/400-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

    Download

  • memory/400-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/400-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/400-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/400-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

    Download

  • memory/740-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

    Download

  • memory/740-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/740-22-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/740-27-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

    Download

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