Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ffb4528b78e017…

MALICIOUS

PDF

40.3 KB Created: 2020-08-25 16:10:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3fbee3bd597349bdf24e8afb9a14412 SHA-1: 533511e57ee97ea43f042efbd46c5bb288ea8666 SHA-256: d7ffb4528b78e017cf0c842288c1e60f09608b0daf7bf333eb42277a3a6b8024
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the text 'Facebook app link android' and the malicious URL. This suggests a phishing or social engineering attack aiming to trick users into clicking the link. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or redirection strategy. 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=facebook+app+link+android In PDF document text
    • http://tamire.myhillchurch.com/uploads/1/3/2/7/132740763/vopewo-rebal-betuzolov.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/1/0430/8484/1124/files/7073742458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7930/1275/files/pufotubuvepig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2084/5210/files/cover_letter_template_australia_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5543/8241/files/52515917443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9617/8849/files/wemukusuzeduguzurewixem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9493/1624/files/functions_of_human_body_organs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7850/6909/files/andariki_ayurvedam_books_free_download_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2166/2365/files/adobe_premiere_elements_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4518/2888/files/alvin_and_chipmunks_cartoon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0807/1576/files/anatomy_and_physiology_for_nurses_roger_watson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5372/5334/files/35410443524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/9390/5828/files/muslim_girl_name_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5041/7827/files/highsnobiety_store_guide_hong_kong.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 8

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_off000060de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DE 5048 bytes
SHA-256: 80f924de51a8dd9f375a86c3fcf38a38176a30a18b6ddbe6ea61ae75b99dfe86
font_01_sfnt_off00007207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7207 10156 bytes
SHA-256: 672fd3fc086e9d9ee9c66b7dedc7277a33184c4df83d872ed2a359212bf37a31

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