Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b0cc54e8f7c7789…

MALICIOUS

PDF

39.9 KB Created: 2020-08-13 22:33:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fe595562468bb8dfff6f6ee88468f9a SHA-1: bac5c447cc7609e69d42153919fa38610d23bad9 SHA-256: 4b0cc54e8f7c77892b5701384a432643576a4a91eaba2f6e9bf3fa093e5e6cfd
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a link that redirects to a known malicious URL, disguised with a popular song title. This indicates a social engineering lure to trick the user into clicking the link. The PDF also contains a large number of external links, many pointing to Shopify, suggesting a link farm or SEO poisoning attempt to improve search engine ranking for malicious content. The primary malicious IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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://ttraff.ru/pify?keyword=sidhu+moose+wala+badmashi+new+song In PDF document text
    • http://files.greatalleghenypassagecompanion.com/uploads/1/3/1/4/131406717/1944897.pdfIn PDF document text
    • http://gewibe.inglesart.com/uploads/1/3/0/8/130873851/pixaju-kodojov-xokepe.pdfIn PDF document text
    • http://files.teachartathome.com/uploads/1/3/1/3/131398424/8e2c867ad2ce.pdfIn PDF document text
    • http://boditin.johnkenower.com/uploads/1/3/0/7/130740450/7aae6e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/set_theory_and_logic_robert_r_stoll.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3865/2054/files/security_risk_assessment_methodology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/17344514048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1149/7366/files/49999635395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/3001/files/valakakezekuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8220/3811/files/98567145054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7238/8249/files/an_inspector_calls_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0637/7633/files/10106739186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/33329835667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7578/9215/files/pojefesefivelamamado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zilifevuzumojewod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4938/5126/files/standard_form_and_classifying_polynomials_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/69350793052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1121/files/69100426648.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_off00005dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEC 5476 bytes
SHA-256: ad37ea6cbfa5d234c31e701dbb967710789e9d48a3ee0d2fd0ba8e8ef9006add
font_01_sfnt_off0000706e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x706E 9868 bytes
SHA-256: 7c0933092cb5b216d053217dd8961de1c6c58d8004b462d59fdd4af8a7a87d87