Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ef848db01e00541…

MALICIOUS

PDF

96.8 KB Created: 2021-03-22 08:00:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3e7a8111ff9921d7418e1b093617788f SHA-1: 2430aa40bda48509bc7d1ac13744922d93de073f SHA-256: 5ef848db01e00541a5c6b8e091744cb16be854e8c496759519d7d9f61c9c6adb
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6129

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://xajibur.ru/award?keyword=agriculture+supervisor+result+2020+pdf PDF link annotation
    • https://xivovawa.weebly.com/uploads/1/3/4/8/134875493/116485.pdfIn PDF document text
    • http://sakhavto.ru/860897052sb5tm.pdfIn PDF document text
    • https://pefuwopiluja.weebly.com/uploads/1/3/4/5/134592541/2731610.pdfIn PDF document text
    • https://cdn.sqhk.co/vafodagusun/hK5ihS1/monster_trucks_games_unblocked.pdfIn PDF document text
    • http://pebonemariv.mypressonline.com/how_do_you_write_an_opening_statement_for_arbitration.pdfIn PDF document text
    • https://cdn.sqhk.co/lidupusumoj/x8Mjbjh/hot_100_radio_station_spencer_iowa.pdfIn PDF document text
    • http://akmurzina.com/free_templates_for_business_brochureswe2dz.pdfIn PDF document text
    • http://toolsbestpricemicrometer.site/32976842244g4zx2.pdfIn PDF document text
    • http://raguvigawak.mypressonline.com/sujok.pdfIn PDF document text
    • https://cdn.sqhk.co/rukububibon/hjz2iay/vatibirido.pdfIn PDF document text
    • https://luvodufugatese.weebly.com/uploads/1/3/4/8/134893210/xoxonexifaruminetu.pdfIn PDF document text
    • https://viduxetejogat.weebly.com/uploads/1/3/4/6/134600114/zugomede.pdfIn PDF document text
    • http://evgeniy-semenenko.ru/14242757075qb4uh.pdfIn PDF document text
    • https://taxinureku.weebly.com/uploads/1/3/0/8/130814469/5960416de.pdfIn PDF document text
    • https://zibefaxad.weebly.com/uploads/1/3/4/5/134594794/rijupop.pdfIn PDF document text
    • http://parrrtner.xyz/lawopepewaxuvanawipinomzi.pdfIn PDF document text
    • https://natufebopod.weebly.com/uploads/1/3/4/3/134305275/bed6a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/senodiw/management_consultant_report_template.pdfIn PDF document text
    • http://kuwijiti.myartsonline.com/calisthenics_workout_and_diet_plan.pdfIn PDF document text
    • http://mubodadekutaxim.atwebpages.com/55875278146.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/sitibifozitebenu.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/principle_centered_leadership.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/google_chrome_app_old_version.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/amazon_fire_stick_supported_video_formats.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011bbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BBF 5436 bytes
SHA-256: 1ca49510ffea649ddbfbc5ed736d3a8516cb4fcc8f40f6f7d41f370cf52686c4
font_01_sfnt_off00012e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E62 3720 bytes
SHA-256: d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281
font_02_sfnt_off000139c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139C6 10500 bytes
SHA-256: 5ff29c16e97ed20747780752b6a0f72237cf74ef034b88082f19c67cb201f71d
font_03_sfnt_off00015de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15DE5 14556 bytes
SHA-256: 3ccc7866ef46b87805e146721a4f1a9bca21dc432c406906ad3d02e2d14a862d

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