Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d806b74b1c431b3…

MALICIOUS

PDF

51.0 KB Created: 2020-08-10 23:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d60dc5f0dcf2a7767660688771c2a958 SHA-1: 7ea651242b894a4cc111408f3509e278bbfdf8e3 SHA-256: 4d806b74b1c431b36a1f728afcbcc2196b4e88bd991f776a15f9fad422114e32
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body contains a call-to-action phrase, reinforcing the lure. The primary malicious link is 'https://ttraff.com/pify?keyword=allopathic+medicine+book+in+urdu+pdf+free+download', which likely serves as a gateway to further malicious content.

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.com/pify?keyword=allopathic+medicine+book+in+urdu+pdf+free+download In PDF document text
    • http://files.elementsofgray.com/uploads/1/3/2/7/132712558/kifoxu.pdfIn PDF document text
    • http://difenobu.wherechangeiscertain.org/uploads/1/3/0/7/130776407/5746772.pdfIn PDF document text
    • http://zizod.orderkupels.com/uploads/1/3/1/8/131857054/14a03fcd6.pdfIn PDF document text
    • http://files.familylifecommunity.net/uploads/1/3/2/3/132303229/7a7dd8.pdfIn PDF document text
    • http://nipemeko.dralexischesney.com/uploads/1/3/1/3/131398140/23c2941781bd4c8.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/1/0443/8907/3062/files/amar_ujala_newspaper_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0061/7381/files/74549414696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/95066292782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9707/9460/files/masogofedubilajer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4386/4224/files/directv_5_digit_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7976/8995/files/tejaruvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2468/4955/files/programa_para_traducir_de_aleman_a_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0047/1456/files/kobipejirenawidugajarebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6538/4866/files/49232836543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/fekolotefafekolotijadanix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9135/1969/files/world_edit_bukkit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7031/files/zipunuvak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/63826094215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/87329766738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/kirakejuxumijofaxodorir.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DC 5384 bytes
SHA-256: 3e3690cd9746a673d8ca30e76f5746eea7611db796afa896e0fb749e6fe17129
font_01_sfnt_off00007808.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7808 10296 bytes
SHA-256: b6a77f67023bb878b479ae221b9433dc8c47415053a92bdce4facae5c1e584e7
font_02_sfnt_off00009b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B25 16108 bytes
SHA-256: 4ab303ebe4e1eb5ac79725b7e016b2ccf8d986cf03ba83279cd18338e752ea03
font_03_sfnt_off0000aff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFF6 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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