Malicious PDF — malware analysis report

Static analysis result for SHA-256 a18560fba756aad6…

MALICIOUS

PDF

42.2 KB Created: 2020-08-06 00:42:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf666b48e1fd007cd9602a9cf468dac2 SHA-1: 70d02f2a8f0bf643ba480d0882550f5fdade1a7d SHA-256: a18560fba756aad6cda8b80d9a6a6fe511584956aba8a365e25a119b64587375
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body and heuristics indicate a lure for free downloads, likely leading to phishing or malware. The presence of embedded URLs and the ML classifier strongly suggest malicious intent.

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=can+t+help+falling+in+love+with+you+guitar+pdf In PDF document text
    • http://files.sweetblackberry.org/uploads/1/3/0/7/130738696/f187805e9dcb.pdfIn PDF document text
    • http://files.bellcreekagility.com/uploads/1/3/1/4/131436981/7642610.pdfIn PDF document text
    • http://xojazeko.propheticgeneration.com/uploads/1/3/0/7/130775320/db066b.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/1/0427/8750/4294/files/mojoranoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8906/8185/files/public_speaking_rubrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/pojiraxazidofufotajifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5706/0769/files/rimigavijewelegeborukex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/23084243428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/komorugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5435/1015/files/45617488397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3564/6357/files/lapijegig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/powugamuronukutovuwoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7468/0987/files/chain_rule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6334/files/musonutaxowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8094/9658/files/kinexejamiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2287/4781/files/82026459549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.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 2

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_off000066a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A6 5284 bytes
SHA-256: 576241470bfe52e02e3f9259e90f5bc4f40810cd742f9a5a1ff89d62c7057a81
font_01_sfnt_off000078b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B4 10224 bytes
SHA-256: 784d70bbb42cf0fc2fb885df5921cf436beb30ca4c64d804588ee310eb586d40

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