Malicious PDF — malware analysis report

Static analysis result for SHA-256 48180da1663d1cb8…

MALICIOUS

PDF

73.4 KB Created: 2021-02-12 10:02:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 000036306b1817b2646cb902cd351fec SHA-1: 1b52e46a4739309d7d378c627f6afc30a806da6e SHA-256: 48180da1663d1cb841801605ce329c8b2bd3bf6dec879690fb329a0f880f7419
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/123?utm_term=spyderco+sharpmaker+guide PDF link annotation
    • https://wewodagib.weebly.com/uploads/1/3/4/2/134266566/vodumotumak.pdfIn PDF document text
    • http://buvosidif.22web.org/bhikari_marathi_movie_song.pdfIn PDF document text
    • https://peziwotikiju.weebly.com/uploads/1/3/4/6/134602895/sunip-kitanarusaxig.pdfIn PDF document text
    • http://jirafka.space/25931795528pf8cn.pdfIn PDF document text
    • https://bunekapizo.weebly.com/uploads/1/3/0/9/130969144/4854947.pdfIn PDF document text
    • https://cdn.sqhk.co/fafaviwi/81NHigz/tavadiz.pdfIn PDF document text
    • http://aycotoro7.xyz/anak_okey_plus_bedava_ipum1e7.pdfIn PDF document text
    • https://cdn.sqhk.co/bigulikexupa/atgfhhk/music_player_online_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/pijavagoke/vegjieJ/bullet_force_hack_script_pc.pdfIn PDF document text
    • http://ovca.space/online_bookstore_project_in_phpdea4w.pdfIn PDF document text
    • https://cdn.sqhk.co/fodibaniwe/jdpzKjf/hat_trick_goalkeeper_training_calculator.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gonumarimemax.epizy.com/url_encode_angularjs_template.pdfIn PDF document text
    • http://daponub.epizy.com/27761631652.pdfIn PDF document text
    • http://lexireto.epizy.com/nba_bleacher_report_lakers.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/kezote.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_off0000e1b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B8 5724 bytes
SHA-256: 52198d2db27af15c814ea8500252054c0dedc8c525bd611b86b84c1092e99b3e
font_01_sfnt_off0000f515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF515 10484 bytes
SHA-256: 7d85c48f7f48290c17b547df0d99fbc22d0f08bcab657ad231fd573cef6de022