Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a290e759b453090…

MALICIOUS

PDF

49.0 KB Created: 2020-08-03 13:11:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5299480cdc4052a464f8e4eb8985dc20 SHA-1: 8f2fe1cac7b8b99119365454e650c042c003b45a SHA-256: 5a290e759b453090b0412f837c3e4e7a995b75d9b71c2a0171b6083f31bcc3d2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=paradigma+behavioristik+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, also contains the aforementioned malicious redirector URL and several other PDF links, suggesting a coordinated effort to distribute malicious content or engage in SEO manipulation for malicious purposes. No scripts were extracted from this sample.

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=paradigma+behavioristik+pdf In PDF document text
    • http://files.ecstantonhometown.org/uploads/1/3/1/6/131606268/malufi.pdfIn PDF document text
    • http://files.statebirdtogo.com/uploads/1/3/1/3/131382395/a1b0c05f.pdfIn PDF document text
    • http://kajewo.tinalouisecalidancecostumes.com/uploads/1/3/0/9/130968921/3816370.pdfIn PDF document text
    • http://files.wildroseeducation.com/uploads/1/3/2/3/132303270/ludabekasopebumemeri.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9162/3074/files/drake_im_ready_for_you_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4293/0842/files/xajit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6660/5211/files/7003079085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3505/5512/files/piruvupupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/60575317762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64238793182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/rakijomonowumaketa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5737/3589/files/zedobezofupumejajataxez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1388/8405/files/mujutezevevikelejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30547733638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0369/6536/files/simotifukosewivobajale.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70AB 5368 bytes
SHA-256: acba42cb6a40680290d695236245048765a43122ed7303507f980d3dc38cb92d
font_01_sfnt_off000082f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F5 11156 bytes
SHA-256: a420fc1f8a5acb0177d307f6cd83b27b92a3149151e476bdf27a76e61ee8b16b
font_02_sfnt_off0000a79f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA79F 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176