Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7b753df1b9d92d5…

MALICIOUS

PDF

41.5 KB Created: 2020-08-16 23:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 857b0e3c848abadcbc934e52d1aa53d2 SHA-1: a410d3bfd2f82c0a805e7c1c2dfd327196ede610 SHA-256: b7b753df1b9d92d54b2c91186eb721a9d89fa7e4392ee675126f22b88054de82
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a deceptive message about formatting an SD card, which is a common lure for phishing attacks. It embeds a large number of links, with the primary malicious link redirecting to 'https://ttraff.cc/pify?keyword=cannot+format+sd+card+read+only'. This indicates the document is designed to lead users to malicious infrastructure, likely for further exploitation or credential harvesting.

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=cannot+format+sd+card+read+only In PDF document text
    • http://files.cantonohiolandscaping.com/uploads/1/3/1/4/131437864/xagiregodikaluzigajo.pdfIn PDF document text
    • http://files.apdcwa.org/uploads/1/3/1/3/131398131/9351272.pdfIn PDF document text
    • http://files.daryljarod.com/uploads/1/3/1/4/131453176/mimodeda.pdfIn PDF document text
    • http://gogum.eldercaringcoordinationfl.org/uploads/1/3/2/6/132683169/fc789a.pdfIn PDF document text
    • http://files.vikani.co/uploads/1/3/1/3/131384589/3629535.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/1/0428/9835/8432/files/1741554469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3018/4087/files/bizasepugeri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7042/7031/files/chapter_5_section_5_parliament_limits_the_english_monarchy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/47200930772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3233/6791/files/philips_all_in_one_cooker_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2381/0203/files/5503705667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/93604207284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/jidubebovanatavavoxome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/zubuzazaxepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8142/1215/files/balanopostitis_en_toros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2782/3778/files/75094448233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/origins_a_short_etymological_dictionary_of_modern_english.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_off000064da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DA 5176 bytes
SHA-256: eb2980d78f93e9f22fe6cc451f579795c9b67b2c97e9928cc2217dd38d6ffcb4
font_01_sfnt_off00007664.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7664 10088 bytes
SHA-256: a75586ce09b5a2c322d4d10f8944fc7d6babe70af44d940bc8d9e02cf3ad62ea

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