Malicious PDF — malware analysis report

Static analysis result for SHA-256 787e960f6fc9013b…

MALICIOUS

PDF

74.9 KB Created: 2021-03-31 20:56:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 002d15f97925dd4311df3b0ad2dc268b SHA-1: 617caff45e1904c937b05e078525a97680a6fd43 SHA-256: 787e960f6fc9013b934c124016cd35c8085f2b88435e69e2a1700a9bed944e2e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing operation. The document body, though heavily obfuscated, appears to be a lure related to a 'lifecycle 6500 manual', directing users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://dugedepap.ru/wix?keyword=lifecycle+6500+manual PDF link annotation
    • https://cdn.sqhk.co/viforoge/ihjhhgL/lomobijosegok.pdfIn PDF document text
    • http://reduslimitalia-oficial.site/youre_a_badass_book2h18j.pdfIn PDF document text
    • https://gepidoduxaw.weebly.com/uploads/1/3/5/3/135324144/luvajesopeve.pdfIn PDF document text
    • http://kind-insta.site/formato_apa_bibliografia_video3hn2m.pdfIn PDF document text
    • https://cdn.sqhk.co/godezixibufo/DsejcZa/truth_or_dare_movie_netflix_2.pdfIn PDF document text
    • http://habirovradik.ru/how_long_should_you_cook_pinto_beans_in_a_pressure_cookerw99bv.pdfIn PDF document text
    • https://cdn.sqhk.co/ropimipaf/jCjdlzU/yellow_wallpaper_analysis.pdfIn PDF document text
    • http://wubowobipevoto.mywebcommunity.org/carpal_tunnel_syndrome_adalah.pdfIn PDF document text
    • https://mefiwoteta.weebly.com/uploads/1/3/5/9/135956645/rifesimozafuj.pdfIn PDF document text
    • http://wow50.pro/12034888101ykr7k.pdfIn PDF document text
    • http://pizuwujigajanen.medianewsonline.com/32610673983.pdfIn PDF document text
    • https://tivepikilusu.weebly.com/uploads/1/3/4/7/134759048/23b4829d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://likoruta.epizy.com/acrobat_9_pro_free_full_version.pdfIn PDF document text
    • http://rokijer.epizy.com/composite_beam_theory.pdfIn PDF document text
    • http://vewusopozi.epizy.com/44978063212.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64ab5cfa-45e3-4691-a4ee-9291cb2eaeb7/can_you_still_play_star_wars_the_old_republic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32448e9e-5767-44df-aa19-bbac54f2781d/how_many_carbs_are_in_wendys_taco_salad.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e86b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86B 5216 bytes
SHA-256: d98e54bfc1b62c140d8904317ae42c70e49f04b5fb60dc9d86403a8bd68bcc55
font_01_sfnt_off0000fa38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA38 10860 bytes
SHA-256: 6025a288304fa112dbbe779fcff2d8708e081b36d22964a015a32c00a1817856

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