Malicious PDF — malware analysis report

Static analysis result for SHA-256 8981cbc61ef3f663…

MALICIOUS

PDF

90.3 KB Created: 2021-01-25 07:39:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4e316ffe115d78c267ee1d78283f1c0f SHA-1: cb9c82208d583eb19092391cf658564ce81065e6 SHA-256: 8981cbc61ef3f663c86cb19044e4b69cc174308154318c509b679edea84c0ecc
136 Risk Score

Malware Insights

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

The PDF contains a heuristic indicating it's an SEO redirector for phishing, luring users with a 'free-download' theme. The primary malicious URL identified is https://maypoin.ru/aws?utm_term=arjun+pandit+bhojpuri+song. ClamAV also detected this file as Pdf.Phishing.Trojan, further supporting its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/aws?utm_term=arjun+pandit+bhojpuri+song PDF link annotation
    • https://cdn.sqhk.co/xoxapivasif/jdjdAfv/nvidia_shield_steam_link_4k.pdfIn PDF document text
    • http://walkover.me/cydefe_capture-_the-_flag_ctf_assessmentcf3tx.pdfIn PDF document text
    • https://cdn.sqhk.co/mukujoripu/Gmoulid/cnc_lathe_machine_for_sale_in_lahore.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/ahiicxD/default_music_player_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/tokafumotebi/9aid14N/99718899925.pdfIn PDF document text
    • https://cdn.sqhk.co/jirowolad/PZijUhc/68145641327.pdfIn PDF document text
    • http://skywonder.space/26995205487uc9pw.pdfIn PDF document text
    • http://idealica-italiaufficiale.site/gesture_lock_screen_mod_apkvf09g.pdfIn PDF document text
    • https://cdn.sqhk.co/xipepovivik/ejgnjjq/rushmorelm_contact_number.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/JYjhybX/68104110343.pdfIn PDF document text
    • https://cdn.sqhk.co/jabosuve/dEhaTgu/zinik.pdfIn PDF document text
    • http://loveantravel.xyz/how_to_say_make_up_meeting_in_spanishxnh44.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dixaleko/vorogijamidoni.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/bamboleo_tab.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/guidelines_atrial_fibrillation_2014.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/42229750273.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/81432513195.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/one_direction_boyfriend_quiz_with_long_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/lizezijexojoxor.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/el_budismo_esoterico_sinnett.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/47344735124.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/winscp_alternative_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/bakers_square_key_lime_pie_nutrition_information.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001120b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1120B 5044 bytes
SHA-256: 7ff132c9ee9ec14a7c28a42c6ec4549685c431f9b76ec96d7e6194c4e7164261
font_01_sfnt_off0001238c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1238C 5392 bytes
SHA-256: 5edc7df223466eb1a449dda9de7a9f27beaa38310ef4ce047e22bf3df040e36e
font_02_sfnt_off000135dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135DC 11040 bytes
SHA-256: c4406aa03376da1667e13d75079f2a398a931e9cee884a479ee3026ea2b7e532

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