Malicious PDF — malware analysis report

Static analysis result for SHA-256 d272dffb04e7e1e7…

MALICIOUS

PDF

47.4 KB Created: 2020-08-02 12:13:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 433aad838299b69ec3c0521e990dd6fe SHA-1: 23c197a761682b835f0740dad9bc56adebc5d38c SHA-256: d272dffb04e7e1e7eb6ab668ff24f6415f3c6968a5f9cc356989f04a6962960c
202 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to Shopify domains hosting other PDFs, forming a link farm. One critical heuristic indicates a malicious redirector link to 'ttraff.ru', suggesting a phishing or malware distribution lure. The presence of a 'download button' heuristic further supports the social engineering aspect of this attack. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a malicious download and redirection scheme.

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=ap+stylebook+pdf+free+download In PDF document text
    • http://files.offthegrid24.com/uploads/1/3/2/7/132712358/fokebujegitepopives.pdfIn PDF document text
    • http://files.thepsychedelictheatre.com/uploads/1/3/1/4/131437733/fea2e9245cee70.pdfIn PDF document text
    • http://files.craigheadcountyveterans.org/uploads/1/3/1/4/131438274/zikarotijuva.pdfIn 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/1/0431/9887/3762/files/nuxamom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3279/5541/files/wiwobaziwufivoluj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6495/files/pezuvatobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5820/7643/files/mabinogi_blacksmithing_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1341/2760/files/renepepojoxowirezipisoxig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9947/0486/files/sosipuvigobewavawiwolupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/688161569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0154/3831/files/38847389704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32852202686.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2F 5164 bytes
SHA-256: 55d4e6630e6b78aa616af97193fe6b89669ff0664337577213c1080b37db414c
font_01_sfnt_off00007ed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED9 10408 bytes
SHA-256: d6f5024c03ebb857137efffc8b0fef945221f961f7caf0d97436230e8511aa21
font_02_sfnt_off0000a251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA251 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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