Malicious PDF — malware analysis report

Static analysis result for SHA-256 c23ea8bb3d83702b…

MALICIOUS

PDF

66.4 KB Created: 2020-07-31 13:59:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1d9076a74baea16b32021420bb3e6ea SHA-1: 7286dfea604c9db060e8c3e9674c6947b08aae77 SHA-256: c23ea8bb3d83702b4d5f8d228abac88e14cd8a45c02b06882719f17ec3d63d38
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This URL is used in a SEO link farm strategy, attempting to disguise malicious content as a free download. The document body, though heavily obfuscated, contains text related to 'Atharvana vedam in telugu pdf free download', reinforcing the lure.

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=atharvana+vedam+in+telugu+pdf+free+download In PDF document text
    • http://files.restauranthibiscus.com/uploads/1/3/0/7/130776841/5106130.pdfIn PDF document text
    • http://files.williamsportmdcommunityband.org/uploads/1/3/1/3/131383743/6261657.pdfIn PDF document text
    • http://files.lovettpianoworks.com/uploads/1/3/0/7/130738712/5672181.pdfIn PDF document text
    • http://files.newbeginningswalworth.com/uploads/1/3/0/7/130776841/tunanazopab.pdfIn PDF document text
    • http://files.stijndecock.com/uploads/1/3/0/7/130775001/fogulegul_saliw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5938/8320/files/xufirelifuposedob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8000/6294/files/82927763057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/sapiwefatumosizotivuxujuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/74771166834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3913/7697/files/rapakazaxazivogimifajorud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8515/9843/files/nilovoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6810/4610/files/60686730252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/domojuvorebanawewobeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/54982445349.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE88 5300 bytes
SHA-256: 47b19d1206a2d4984d35b495ba37fe82c9cc96d545e88c0a0e549be15573e24a
font_01_sfnt_off0000c074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC074 7372 bytes
SHA-256: 874e85277f084b6ac2a5633efd0b6cef29fedbf63ff642f6fa51ae045ddb288e
font_02_sfnt_off0000d70b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD70B 10156 bytes
SHA-256: fdf2839c2c89d44e43937743eb0647639e52db5e5fbb8dfd3a9d7cec31096208

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