Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9332eb37976a90a…

MALICIOUS

PDF

52.5 KB Created: 2020-08-01 12:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51b4e93d19c4760c8f77d8735e4273ac SHA-1: e6c590c49dc04bf341c06fa66d9ad07e3b3cb995 SHA-256: f9332eb37976a90aa77b814dd1a41b7411947a964ca8830a2f7c48690389b338
194 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to the presence of a link to a known malicious redirector, ttraff.com. This redirector likely serves as a gateway to a phishing or malware distribution site. The document also contains a large number of links to other PDFs hosted on cdn.shopify.com, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of its specific content beyond the embedded URLs.

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.com/pify?keyword=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25BC%25D1%2583%25D0%25B7%25D1%258B%25D0%25BA%25D1%2583+mp3+%25D0%25B0%25D0%25BB%25D1%258C%25D0%25B1%25D0%25BE%25D0%25BC%25D1%258B+the+beatles In PDF document text
    • http://files.kelleyintegrity.com/uploads/1/3/0/9/130970003/84a094c03d979a9.pdfIn PDF document text
    • http://files.sarahelizabethpowell.com/uploads/1/3/0/7/130776499/lolewutoluwap.pdfIn PDF document text
    • http://files.madebyhollie.com/uploads/1/3/1/4/131407918/d5cb190976.pdfIn PDF document text
    • http://files.justcapsusa.com/uploads/1/3/0/7/130776407/lokopono.pdfIn PDF document text
    • http://files.rochesterkino.co.uk/uploads/1/3/1/1/131164002/forixamewowipewuguwe.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/1/0430/2602/2554/files/17451679198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6109/2255/files/tejaboruzedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7691/0242/files/98266022236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7105/9608/files/74539182740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/zuwapilavazimaseri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9765/3397/files/mesazugibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6377/0274/files/98323168071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gejazopemovaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6059/9711/files/84321733530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/moxebanikijokunosurabub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1782/2620/files/bikabumexejapipineradi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9094/2888/files/ditch_witch_repair_manual.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_off00007e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E14 6644 bytes
SHA-256: a9070ca8b6527e8b11fb75b074fd0d343bbd890c7900125db812af6be5333f40
font_01_sfnt_off00009344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9344 15236 bytes
SHA-256: dcfecd63923560d7583fa470e5dbfa1fcb4ea940a08b7ab9293b0ba26f33774b