Malicious PDF — malware analysis report

Static analysis result for SHA-256 773839e545e53266…

MALICIOUS

PDF

54.6 KB Created: 2020-08-01 13:57:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bec6f3207baabcdb7e6607fc163a8ca2 SHA-1: 4c05f62da5f34909964e07fdd211cf4bbcb61f15 SHA-256: 773839e545e5326679c3fcd0bb81a66c2479c4294948e9fcad3941f2de6c4c7b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to the URL https://ttraff.com/pify?keyword=software+project+survival+guide+pdf. This URL is likely used to redirect users to a malicious site, potentially for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious.

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=software+project+survival+guide+pdf In PDF document text
    • http://files.maceymania.com/uploads/1/3/1/4/131406222/7877367.pdfIn PDF document text
    • http://files.behomewreckerstogether.com/uploads/1/3/0/9/130969354/9fd120b.pdfIn PDF document text
    • http://files.breathelaughlove.com/uploads/1/3/0/7/130738652/fd6a64f4.pdfIn PDF document text
    • http://files.taralynashley.com/uploads/1/3/0/7/130740323/bosepi_zikawosi_sezanarisof_ludariru.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/1/0432/8721/6293/files/89624228077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8460/1752/files/dufesazukukanewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6304/0408/files/37770278187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/lareritevapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/67280215612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6730/2295/files/23533406960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/71808232347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7016/8986/files/29012225314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.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 8

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_off0000971a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x971A 5656 bytes
SHA-256: fbf18846f6d3a3ab71ac460c3604d2d408ddd86a91ec210e14899af2db29dc6e
font_01_sfnt_off0000aa89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA89 10432 bytes
SHA-256: 5ff10fc15cd09c00cf0dffae53a5ecbc9868f6b82770b812e25ccc6577d3a88b

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