Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab0faa083cbce666…

MALICIOUS

PDF

47.7 KB Created: 2020-08-19 04:44:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ca8390b5fdcf18a0834a43355ec29bc SHA-1: 38cfed265c6130f7777a88d9a7db1baf912ed3eb SHA-256: ab0faa083cbce66629f3ce07d78d286dfb6ecd284c64cc5f1e22b734e83a2ed5
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'British english pronunciation exercises pdf' and includes the malicious URL. This suggests a social engineering lure to direct 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=british+english+pronunciation+exercises+pdf In PDF document text
    • http://pabatew.alanflemingtournament.net/uploads/1/3/2/6/132695924/popogatawel-wimifepitojojun-pavusufe-veritegovo.pdfIn PDF document text
    • http://files.robindaviesconsulting.com/uploads/1/3/1/4/131453284/67e560624087.pdfIn PDF document text
    • http://files.jacobccooper.com/uploads/1/3/1/4/131437561/5a5e5deb161.pdfIn PDF document text
    • http://files.somethingsomethingtheatre.com/uploads/1/3/2/6/132695663/f00ffa2e44fae.pdfIn PDF document text
    • http://files.wilderblubordercollies.com/uploads/1/3/2/6/132681307/rakopagobufep.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/1/0435/4431/4024/files/simple_template_html_css_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3952/1958/files/xidimoxiramasumutovidif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/letowopebofowebizuwir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4667/4337/files/62354694411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8634/7414/files/kimazetoduzumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1787/1255/files/41513871382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1960/7962/files/98994023209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/bcbstx_enrollment_application_change_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1560/1319/files/bedelemojixuruxopuledaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7118/4794/files/sevajejitipej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/95272329394.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 7

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6917 3292 bytes
SHA-256: 06a9266efec998f21103f8c55b4360a9dbffa3e62e1332608945dda6d041e7c4
font_01_sfnt_off00007500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7500 5532 bytes
SHA-256: 0b771f350413991b5bbd62df1d460fde22f9850cd3a9b4803fa6b0db004d4cc3
font_02_sfnt_off000087d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D4 12360 bytes
SHA-256: 87e5c7d2d5e83f2936a5b3b242d8570169d3c044b293860297c7adb62e85d49e

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