Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e6223d54ca8fb54…

MALICIOUS

PDF

66.0 KB Created: 2020-08-17 04:01:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0352fb569e0fbbd188cd11da827ef11e SHA-1: 55bab4630c79d2fbe0e0150c50cdacea48022335 SHA-256: 7e6223d54ca8fb54393648e44f57ed5c595e0ead0926192675db5d7b83f111c1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'anatomy of an earthquake worksheet answers' and a URL that appears to be an SEO lure. This suggests the document is designed to trick users into visiting malicious sites by posing as educational content.

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=anatomy+of+an+earthquake+worksheet+answers In PDF document text
    • http://taduvesef.susiegourlay.com/uploads/1/3/1/4/131453046/7597638.pdfIn PDF document text
    • http://gekofaku.redolivestudios.com/uploads/1/3/0/8/130814124/5681598.pdfIn PDF document text
    • http://files.foodanimalbiosciences.org/uploads/1/3/1/4/131453943/zokusemuxojel_tatenufemokab_xudiki.pdfIn PDF document text
    • http://koxomuri.abbotsfordanimalhospital.com/uploads/1/3/1/0/131070450/gesiwagonabunobivobu.pdfIn PDF document text
    • http://files.madewithloverldesigns.com/uploads/1/3/2/6/132681295/2599276.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/1/0440/3894/6981/files/bad_boy_video_song_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8615/1834/files/fonajuxeluj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/xaxurowozuximijiwabono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vufofabiziterefabul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8571/6886/files/divina_commedia_paradiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1050/6404/files/dimutadoxuzosigare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3723/6119/files/64475311289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1187/3688/files/fuloxeninorasisoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8180/8549/files/vidixejumuvipuwisodedeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fufabolip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5369/5644/files/naroruxopenan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5709/4559/files/47542579390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5881/3341/files/administrao_estratgica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4238/1725/files/nidorino_gen_1_learnset.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_off0000b820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB820 5184 bytes
SHA-256: 1b5f66b32fc514009c36c57c693e62e487bd67ad8cd533e3cff80eaf4e9bed0d
font_01_sfnt_off0000c9a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9A9 10176 bytes
SHA-256: 97c2a8a1a4c874b9d568892fb58e57ec371aa6acd0b3cfa953d61255283c22a0
font_02_sfnt_off0000ec49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC49 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361