Malicious PDF — malware analysis report

Static analysis result for SHA-256 772be12498a2d3cf…

MALICIOUS

PDF

68.1 KB Created: 2020-08-03 21:22:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7b77a30bc6423c549c786506d6aebee SHA-1: b29e5a1c17daed39aaaee0f41f7a08ae3abc544c SHA-256: 772be12498a2d3cf6cb962e05c4aafd74050b8c0b9eb32acc76fe48f7cc364c3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded URL 'https://ttraff.com/pify?keyword=cancionero+catolico+pdf' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, reinforcing its role in the attack.

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=cancionero+catolico+pdf In PDF document text
    • http://files.samdrakeracing.com/uploads/1/3/0/7/130775551/siwilovekanuju.pdfIn PDF document text
    • http://files.mariebyrdsproul.com/uploads/1/3/0/8/130874598/6292840.pdfIn PDF document text
    • http://files.symphonicbandcamp.org/uploads/1/3/2/7/132741476/vonesutukale.pdfIn PDF document text
    • http://files.you-turn-drug-docket.org/uploads/1/3/0/7/130738554/2093948.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3432/8735/files/siamese_network_keras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6308/3170/files/sifemabumavevog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/wosojebujanewijiromiviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5058/1662/files/58111106296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3214/9148/files/budofamodananelug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0536/9768/files/geragejipurawej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3749/1354/files/13088833306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/xumagutezixekot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3488/5796/files/38345675049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31052941417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/guwapavazofoletetomudafuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9431/9009/files/59854113821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2498/0904/files/89076931621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4647/5678/files/povugami.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1D2 4780 bytes
SHA-256: 20be08ae89d82a486327da51092f8ef5527923be15b814e1802980e789196bab
font_01_sfnt_off0000d218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD218 10224 bytes
SHA-256: 2e56126fd45174d47bdbcddc5432ba3938f3ad5a3a5def8b40a8b6560c72f2bd
font_02_sfnt_off0000f514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF514 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176