Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5047eb39b115a10…

MALICIOUS

PDF

59.8 KB Created: 2020-08-12 12:46:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94ef914bca586fd639d670b8a082c0bc SHA-1: 56ee6864d78dfba054b7e44a787e2d22639c776e SHA-256: b5047eb39b115a10f950d4d1a52e9d038c904bcb4246360bea300afbc23080c8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=alfabeti+dad+visual+pdf', which is flagged as a malicious redirector. This suggests the primary goal is to redirect the user to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.cc/pify?keyword=alfabeti+dad+visual+pdf In PDF document text
    • http://files.neighborhoodacupuncture.com/uploads/1/3/1/4/131437676/8135904.pdfIn PDF document text
    • http://zadeda.ostrichhole.org/uploads/1/3/2/6/132681488/lawoganipufuwafo.pdfIn PDF document text
    • http://files.arrantsmcswain.com/uploads/1/3/1/4/131407535/nafisawase.pdfIn PDF document text
    • http://files.michellesjohnson.com/uploads/1/3/2/6/132695546/6366908.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/1/0436/7722/1017/files/99314280285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8307/9588/files/14136609570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3434/3586/files/nkjv_word_study_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9699/8048/files/95877676334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3602/4742/files/72345096390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6393/4109/files/mopib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/tenika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/kakesuwebidagilububaviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/zamufok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9160/7204/files/samir_aouchiche.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9515/3058/files/mezavuladuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/lawoxepazarapatuwipinud.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000add3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADD3 5128 bytes
SHA-256: 986a6b24edf8d0b4d73d215a6bb2a88b0c629695d11c0da951553e34a06e2e90
font_01_sfnt_off0000bf60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF60 10272 bytes
SHA-256: 5c9a6869366696606847721701e1f836655757dc5b1f85a9960aa77fc4398c6e

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