Malicious PDF — malware analysis report

Static analysis result for SHA-256 1281d02d12ced90c…

MALICIOUS

PDF

41.4 KB Created: 2020-08-06 15:21:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c15571ec30f8ae41251948b66def442 SHA-1: fd36feda9c82ade42302e75bb8f0b42d68a8d2f9 SHA-256: 1281d02d12ced90c15f193068a0737fb11ad51a6266c3e5c10cb2e40b9167647
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text that appears to be a lure for users to click on a link related to 'bookmark pdf ipad'. This suggests a phishing or scam attempt designed to redirect users to malicious infrastructure.

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=bookmark+pdf+ipad In PDF document text
    • http://files.jacquiesewell.com/uploads/1/3/0/8/130814132/fajojenoke.pdfIn PDF document text
    • http://files.mrcmathclass.com/uploads/1/3/1/3/131379832/dijoxiju_debowazebe_kavumugubaxuvar_zemosatonas.pdfIn PDF document text
    • http://bobosa.gcreadingvs.com/uploads/1/3/1/4/131453416/3152007.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/1/0431/1659/3312/files/87273503068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/posivokesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3218/9860/files/modified_bessel_function.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9000/1572/files/11708533423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0505/8976/files/76925048875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9241/8468/files/11905949425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/osrs_kalphite_soldier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/learn_autocad_basics_in_21_days.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3042/files/xaginezadoburusoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5171/6503/files/class_4_maths_worksheets_cbse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4986/8712/files/7_segment_display_pinout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/xititaximo.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 2

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_off0000664a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664A 5088 bytes
SHA-256: 3ddcd6026d4e94c39e136f87f78f280ddaceb8cfb81a5147b14f0031589eccde
font_01_sfnt_off0000778a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x778A 9760 bytes
SHA-256: 21ef8997936c68def4c16f19322c66fabadb10c4c7a0433ce7965d43f4effdb4

Open this report in the interactive analyzer, or submit your own file for analysis.