Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1d78a7992a54d98…

MALICIOUS

PDF

36.3 KB Created: 2020-08-19 08:39:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d5ebd6f28cb1be23ac517c1df9cdea8 SHA-1: bc50a6194d3a35f0c710314b27c15fc87fdd0c2b SHA-256: e1d78a7992a54d98f533a4f568ff84358d66f94285cff8e919f5495a48368b2f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=ielts+liz+vocabulary+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=ielts+liz+vocabulary+pdf In PDF document text
    • http://vovamib.mattngeditor.com/uploads/1/3/1/4/131438464/1512943.pdfIn PDF document text
    • http://files.illuminat.co/uploads/1/3/1/3/131383377/2154d14322c4a1.pdfIn PDF document text
    • http://lelivopo.atomichairsalon.com/uploads/1/3/1/6/131606289/wivanavoson-zefekojagekaxo.pdfIn PDF document text
    • http://files.fullfootprint.org/uploads/1/3/2/3/132302896/xejidarusetilawoniz.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/1/0431/4634/6657/files/beetlejuice_say_my_name_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/47402410338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/dedakewibedovokuwatilidak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/1206488860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3418/5628/files/terjemah_al_mughni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/25364230609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8572/5857/files/one_tree_hill_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0071/7727/files/97260576083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2331/6630/files/70798048007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/miligusugafenusefugakowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1080/8217/files/food_cost_formula_menu_pricing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1503/5291/files/1769660101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0221/4046/files/urticaria_con_angioedema.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 3

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_off00004ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF6 5440 bytes
SHA-256: 614fd2274808c1fd5905cda354f798a926be94299b5f720fc8631144ecc79a1d
font_01_sfnt_off00006291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6291 9928 bytes
SHA-256: 95a68144757a8c37f5116982d2cffbf940e1de20bc579092dcf1cd6f882d6104

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