Malicious PDF — malware analysis report

Static analysis result for SHA-256 b57a14f4ba1537c1…

MALICIOUS

PDF

44.9 KB Created: 2020-08-04 07:37:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cffb1d877dad6679a415af9bef910146 SHA-1: 81932621c9fd54b7e0a37be6b45a8addc9eb2b89 SHA-256: b57a14f4ba1537c1c533337bb802e303e63cc3bc71dcd8b0bf8432b0e6163752
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL designed to lure users into downloading further content. The primary redirector URL, 'https://ttraff.cc/pify?keyword=good+faith+marriage+affidavit+letter+sample+pdf', points to known malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to deliver a malicious payload or lead the user to a phishing page.

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=good+faith+marriage+affidavit+letter+sample+pdf In PDF document text
    • http://files.bohemianbluphotography.com/uploads/1/3/1/4/131483201/8fdaf2361109a87.pdfIn PDF document text
    • http://tufumezek.chrishhphotography.com/uploads/1/3/0/7/130776433/a813da2dbcd.pdfIn PDF document text
    • http://files.judenicholson.com/uploads/1/3/0/9/130969525/cca92bb0.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/1/0430/8441/5143/files/2380753414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/watipasajaxewusute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/kevulozatumuwuzobadaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8680/7201/files/tinininuliduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5187/5481/files/makkar_ielts_speaking_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/mexexugejaxaliru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/wubipiborudewesurexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/james_stewart_essential_calculus_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/66485146239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3074/8072/files/48183034156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4245/5207/files/37621885776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/tijugelukelo.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 4

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_off000070dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70DD 5544 bytes
SHA-256: d2fd22cef3fd1a4cd019b3ae783269bc991769acf9cffd819cc01a3a6d20bd77
font_01_sfnt_off0000839a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x839A 10192 bytes
SHA-256: 11e8a0c3428bd5f444977408ea6b2f6be5b56eb9d466c9eadcd16610deebc973

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