Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2a136e99342df97…

MALICIOUS

PDF

44.6 KB Created: 2020-08-12 01:26:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 070da1455bc013e00afbb402c145c376 SHA-1: 97acd8e905a0be85d5e37783732c4d2d08c474f7 SHA-256: f2a136e99342df97cf20d59815c6bab8f47fe50a449296a251da905a90bee01e
194 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a critical heuristic indicating it links to a malicious redirector. The document body itself is heavily obfuscated but contains the redirector URL. The presence of numerous embedded links, many pointing to Shopify domains, suggests a link farm designed to distribute malicious content.

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=absorcion+y+secrecion+intestinal+pdf In PDF document text
    • http://files.petsittingservicesofnewburgh.com/uploads/1/3/0/7/130776033/8167346.pdfIn PDF document text
    • http://labov.theimo.org/uploads/1/3/1/4/131483416/wemenijevesovowir.pdfIn PDF document text
    • http://files.renewyourminddaily.com/uploads/1/3/1/0/131070356/214cc6c316521ff.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/1/0447/0036/9049/files/amoreta_knjige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4897/6027/files/admonitions_of_ipuwer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3474/5760/files/duxete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8051/5738/files/firefox_backup_bookmarks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/gujemaduguwumupusan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4413/4294/files/refipolefuwimipax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/pomikuliwabodetotufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5763/5735/files/51414095931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0692/4712/files/61258297196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7509/3159/files/pitekaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17418425376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5870/8136/files/jiratalifikaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/daturum.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_off00007136.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7136 5380 bytes
SHA-256: 66c74310d30fe84f8457f6848230d026481211e1ba5622a254c1ac41336ab56f
font_01_sfnt_off00008385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8385 10012 bytes
SHA-256: 9c828e942b1611254864603cd6e0356bb1dce09b98d0985606b876b29bc9d9e9

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