Malicious PDF — malware analysis report

Static analysis result for SHA-256 64988bdf9537d9ab…

MALICIOUS

PDF

45.5 KB Created: 2020-08-10 07:58:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1204ff884223f348c943ccd3d84b6924 SHA-1: 5e91357fa967496bd421713add76123f4bfdca49 SHA-256: 64988bdf9537d9abd686a1953cf09c258bfcd19903bfc55e8710e5883fb0041f
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, `https://ttraff.cc/pify?keyword=fundamentals+of+financial+accounting+5th+edition+pdf`, which is flagged as malicious. This suggests the document is designed to lure users into downloading further potentially malicious content disguised as academic materials. The ML classifier also strongly indicated maliciousness.

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=fundamentals+of+financial+accounting+5th+edition+pdf In PDF document text
    • http://mixevor.kimballm7.com/uploads/1/3/2/6/132695569/sinidegilokine_jinumozola_nonifiwonefexuj.pdfIn PDF document text
    • http://jesuditum.auntjessiescookies.com/uploads/1/3/0/7/130775162/diwigivajer_gadelo_dezuxiwugikupe_dobepa.pdfIn PDF document text
    • http://milide.relationalbalance.com/uploads/1/3/1/6/131637136/966ada5c065f824.pdfIn PDF document text
    • http://files.jazzrecordartcollective.com/uploads/1/3/1/3/131379678/8062581.pdfIn PDF document text
    • https://digitalcontentmarket.org/wp-content/uploads/2017/11/Solutions-Manual-FundamentIn 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/1/0429/0763/1779/files/47687923300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9521/2697/files/acca_f8_revision_kit_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/xidokozivikivetije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8198/2361/files/10376629255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3636/8283/files/xufufukosagekofemere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/6199791000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/gagimasakuwipivafenufinek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1629/7368/files/tifigug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/paste_in_r.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/54771853660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8589/6609/files/deep_ecology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0867/1394/files/guraxivotetamolizanumegit.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_off000064cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CB 5436 bytes
SHA-256: 9b142f0d6e02aa410dddb967ba2aa525c9007cb4e7866b894b677eb776b401a1
font_01_sfnt_off00007720.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7720 10140 bytes
SHA-256: 013af0479306a7284392ecc181b3e7319b0630bab5ade5572cfb5739b2903f75
font_02_sfnt_off000099c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99C5 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176