Malicious PDF — malware analysis report

Static analysis result for SHA-256 6114ee76efc72501…

MALICIOUS

PDF

49.6 KB Created: 2021-03-20 15:24:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fa3f32dc62e237ae85c968be4ff5b830 SHA-1: c5891d9a064d0d18c3cf9ca0fda7bd6d0c13a711 SHA-256: 6114ee76efc72501d13855a482165ffbf0b69cd52d835d30d5763b7ed1d7cbbb
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable link, a common tactic for distributing malicious content. The ClamAV detection and ML classifier further support its malicious classification. Although no scripts were extracted, the presence of numerous external URIs, including one pointing to 'dugedepap.ru', suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6307

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 49 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://dugedepap.ru/aws?utm_term=asus+rt-ac88u+hard+reset
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    • https://begagezegitajaj.weebly.com/uploads/1/3/1/3/131398046/panoxaxevikudef_vegepuku_joxenagasa.pdf
    • http://dosubodanes.mypressonline.com/161_bus_route_schedule.pdf
    • http://bitalotava.scienceontheweb.net/yellow_in_rgb_values.pdf
    • http://dopogabijup.mywebcommunity.org/your_grace_is_enough_lyrics_and_chords_by_hillsong.pdf
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    • https://lowujowe.weebly.com/uploads/1/3/5/3/135320741/tubaf.pdf
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    • https://kisetizep.weebly.com/uploads/1/3/5/9/135992433/riridilezugitid-riwoxagepipojod-vasoram.pdf
    • http://setixebasedi.epizy.com/robot_coordinate_system.pdf
    • https://s3.amazonaws.com/godoremitiwuja/abcd_rhymes_free_mp4.pdf
    • https://s3.amazonaws.com/fadobirak/charlie_and_the_chocolate_factory_oompa_loompa_2005.pdf
    • http://tepuxasimu.rf.gd/internet_manager_registration_serial_number.pdf
    • http://nofegogimulat.rf.gd/is_chemistry_useful_for_computer_science.pdf
    • https://s3.amazonaws.com/fupanabivote/tp_link_av500_setup_uk.pdf
    • https://s3.amazonaws.com/kewakuko/30064203619.pdf
    • http://wazozugafen.epizy.com/kenmore_refrigerator_253_manual.pdf
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    • http://tapomizo.rf.gd/takunamuni.pdf
    • http://nabiderafiwo.epizy.com/calvary_temple_songs_naa_songs.pdf

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