Malicious PDF — malware analysis report

Static analysis result for SHA-256 74fadd25c29fbb93…

MALICIOUS

PDF

45.6 KB Created: 2020-08-16 10:59:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c5e33a9e15aae7cbfa35d6266470591 SHA-1: f2284d1bbcfcfc89e69c3dfc1fd79cfadd0b8b03 SHA-256: 74fadd25c29fbb935ebc264a848447114435cf7f0cf38924d4c9d67632df5ab7
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though obfuscated, includes the same redirector URL and references academic material, suggesting a lure for phishing or malware delivery. The ML classifier also strongly indicated maliciousness.

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=academia+boa+forma+sapiranga In PDF document text
    • http://morunowu.luxuryjourneytravel.com/uploads/1/3/0/7/130740025/379928e311d1d2.pdfIn PDF document text
    • http://vimukidu.jewelrysalehub.com/uploads/1/3/2/8/132815732/mujewavimuwiluz.pdfIn PDF document text
    • http://files.violetduanmu.com/uploads/1/3/0/9/130968921/faxikirodokitavi.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/1/0431/8196/5461/files/81912149454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6392/7203/files/22638971870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6831/8105/files/homeostasis_lecture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6425/4883/files/73266988502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6662/2106/files/xebonaxujuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3407/3505/files/15317440460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6286/0699/files/accelerating_your_learning_curve_andrew_wasson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5441/4494/files/12027065839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/pubevagafatezigogigame.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_off00004dfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DFC 5572 bytes
SHA-256: 348442cdbd3492a7abf9647e88384b271f117a65e523d492ab99fc666281555d
font_01_sfnt_off000060c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C6 4236 bytes
SHA-256: a8dd37f71fb15798c01a2c52db7a3509695d993ef6773dc37755a944370533fa
font_02_sfnt_off00007099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7099 10232 bytes
SHA-256: d810121e335b20d9ce03a31a73d975b1f806e8c42222d7ed253950fd716f7ab4
font_03_sfnt_off000093b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93B9 16312 bytes
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15

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