Malicious PDF — malware analysis report

Static analysis result for SHA-256 a11d21a5b58be419…

MALICIOUS

PDF

38.7 KB Created: 2020-08-01 09:38:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8aa4d4ea3da712097f12b25de1502acc SHA-1: 65a6e85f19a4a65f5816075421d2cd44d7768753 SHA-256: a11d21a5b58be4197333c7a373d84331e7894c1bd54bfb4af5ec83adb255d004
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to 'ttraff.ru', identified as malicious. The document body, though heavily obfuscated, contains text related to 'Full program indir' and the malicious URL, suggesting a lure for users seeking software. The presence of a malicious redirector link indicates the document is designed to lead users to harmful content.

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.ru/pify?keyword=full+program+indir In PDF document text
    • http://files.lyonhappinesscoaching.fr/uploads/1/3/1/4/131407106/c0e059070fe1.pdfIn PDF document text
    • http://files.carolinehartzell.com/uploads/1/3/1/3/131397996/5293302.pdfIn PDF document text
    • http://files.kristygloverportfolio.com/uploads/1/3/0/7/130776120/52109c98816.pdfIn PDF document text
    • http://files.hijabiballers.com/uploads/1/3/1/3/131398555/7218778.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/1/0439/7786/7422/files/buxebemunelasaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/28403748239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/puscifer_the_mission_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/95175420129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8891/2290/files/komuneminazomaxobugebuvom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4979/3174/files/suxudaxevozomovem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0129/6534/files/jaworeniwux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7750/9020/files/jisimasasogenudires.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/nopiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/70802287916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2901/8262/files/fabevejatolefefukawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2009/0535/files/35429146875.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_off00005b22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B22 5056 bytes
SHA-256: 061bbeeae74d254f51729f407556ca55c787ce26caa305a010e357331ec925ab
font_01_sfnt_off00006c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C3C 9972 bytes
SHA-256: 9c60fedc0b1ba2a3ebd6e9fcbfa370a5fbaa0fe825c86449859561d083c615a6

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