Malicious PDF — malware analysis report

Static analysis result for SHA-256 68d86a76b7d938dc…

MALICIOUS

PDF

50.1 KB Created: 2020-08-13 23:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67791d8604ecfd7e674232fddb022bc1 SHA-1: c276f60b4e4b5af456179336f89740dffa54aeef SHA-256: 68d86a76b7d938dc2b6660e28ef2a831a6cdc937ff988caca8b1b490d906a0c0
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com, which is likely used to funnel victims to phishing sites or download malware. The document body, though heavily obfuscated, contains the same redirector URL and several other PDF links, suggesting a link farm or SEO poisoning attempt to drive traffic. 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.com/pify?keyword=gana+achu+sari+sari+song In PDF document text
    • http://zobazelep.tessagoss.com/uploads/1/3/0/8/130814252/686287.pdfIn PDF document text
    • http://files.megabonlux.com/uploads/1/3/1/4/131437295/mizigegujebufizoduz.pdfIn PDF document text
    • http://gosomibix.fibromyalgiamadesimple.com/uploads/1/3/1/8/131856177/1526129.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4954/2041/files/49202454279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/buyer_decision_making_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/92976578398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4336/4759/files/34715755554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/barzanji_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/3597411485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3923/3960/files/1099180610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0644/1110/files/amenagement_du_territoire_au_mali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2217/7688/files/materi_biologi_sel_sma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5366/2883/files/fractions_adding_and_subtracting_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5038/5051/files/vorediti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jisabisagubimebusogapasof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0470/7491/files/42224440458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/dimawiwezuwibitadumexuz.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_off000072c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C4 5060 bytes
SHA-256: 53247d72076de12dfee531152e4b66ef1f04722c36ce6912adf45d2aeecfdf98
font_01_sfnt_off000083ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EF 2412 bytes
SHA-256: 11634037c6fd080fdd41aabed5ad7f5c6a6ca4c7a86ffc075fd698fb9945f635
font_02_sfnt_off00008e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E8B 14024 bytes
SHA-256: c35a20592d0048f01f82d31c31c72a34ee3ee5cffd3626519c6143fcc6202c04