Malicious PDF — malware analysis report

Static analysis result for SHA-256 b614abf383cb8b65…

MALICIOUS

PDF

40.6 KB Created: 2020-08-02 23:27:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99853a479f081c5690d047b9baefc0dc SHA-1: 997e8ae0a64a4c2b2a57c05e9893fc813462a5d4 SHA-256: b614abf383cb8b65f230c8d6bab7f53a3aa1be7dae8a0c4e31c37392125b78b9
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of external PDF links, suggesting a link farm or redirection tactic. The presence of a 'download button' lure further supports the attack pattern. The primary malicious URL identified is ttraff.ru, which is used to redirect the user. While many Shopify URLs are present, they appear to be part of a link farm and are mostly confirmed benign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=visual+boy+advance+roms In PDF document text
    • http://files.radcommorgchart.com/uploads/1/3/2/6/132681690/ziwur.pdfIn PDF document text
    • http://files.thecurrencymatrix.com/uploads/1/3/1/4/131406507/7090686.pdfIn PDF document text
    • http://files.steeplechasehomes.com/uploads/1/3/1/4/131453348/5119854.pdfIn PDF document text
    • http://files.casaesperanzalongmont.org/uploads/1/3/1/4/131436981/nupod.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/1/0440/5238/1846/files/jovubuwalogadutatepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4906/6397/files/15072397137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9148/3042/files/dovem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5442/3464/files/second_chance_shinedown_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5098/2821/files/tiwun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5283/4711/files/45919854228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/72866363379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9148/3041/files/56837535514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.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_off000061e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E8 5352 bytes
SHA-256: 452d581effac08249e549a984637c83a78d8d85a4866c1de3a0d46572d0458d2
font_01_sfnt_off0000740e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x740E 9900 bytes
SHA-256: 6b14672181cc5590d15f8669898b6c3cd9ea813aa03c377e2eac229396c46d76

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