Malicious PDF — malware analysis report

Static analysis result for SHA-256 e48bd4c64c422be9…

MALICIOUS

PDF

52.7 KB Created: 2020-08-22 16:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 442ecfcd4438dab633e9ee1ad5225042 SHA-1: cde44e0167468db70205316628f964dabe2acbad SHA-256: e48bd4c64c422be9962eaa80a1fdb538c77ce09eedcd72b8696bb9ef724f4b83
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, disguised as calligraphy practice sheets, redirects through a known malicious redirector (ttraff.cc). This suggests a phishing or scam attempt designed to lead users to malicious 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.cc/pify?keyword=fountain+pen+calligraphy+practice+sheets In PDF document text
    • http://galeza.powerofmath.net/uploads/1/3/1/3/131379478/2050617.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/1/0432/7283/1134/files/pafadotufoxirisik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/javascript_games_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/30305990120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4676/2656/files/86874497256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5229/3541/files/73772765361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5335/8999/files/mathematics_10_teacher_s_guide_unit_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7145/4883/files/8th_grade_go_math_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/celiac_disease_nutrition_therapy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8660/9573/files/pimojipowux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1739/4586/files/19434920203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7609/1032/files/27118312482.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 8

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_off00007028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7028 5252 bytes
SHA-256: c8695066c9847ba220113a7d9131117326932ba275c6993264fa23ca5a1d9bbb
font_01_sfnt_off00008200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8200 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off00008a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8E 10504 bytes
SHA-256: 858ed4d7c8335533c18e22b9977cdb0b78201f2922ce88f2c19cf9795ef10b57
font_03_sfnt_off0000aebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEBE 16408 bytes
SHA-256: d2160f42e09c196f09356f838713ec8fd2c36a84c42d044d8a74d733a435e07a

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