Malicious PDF — malware analysis report

Static analysis result for SHA-256 88233584fd69edc9…

MALICIOUS

PDF

52.3 KB Created: 2020-07-28 08:07:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84c116788a550ee9678f40526f76d24a SHA-1: bbdce6c81e6ae7eef62b2570e82bdf98a54028f0 SHA-256: 88233584fd69edc9864aaa9661aa5c320a3d5691b9c974161ad71949fd8d1ae9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a 'cuneiforme dictionary'. The presence of multiple external PDF links, many hosted on Shopify, indicates an attempt to manipulate search engine results and direct users to potentially malicious sites.

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=q+es+cuneiforme+diccionario In PDF document text
    • http://files.hartshillandharpfieldsra.org/uploads/1/3/0/7/130776150/1185917.pdfIn PDF document text
    • http://files.santafevintage.com/uploads/1/3/1/6/131636737/pavuvesijofisi.pdfIn PDF document text
    • http://files.sunnysidesymphony.org/uploads/1/3/0/8/130814666/kisigegis.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/1/0431/8098/2436/files/rajatupeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1739/4586/files/36430491571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0809/7436/files/wixupenujikomuxelid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8113/0394/files/11631679683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6863/6834/files/releki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9619/3686/files/bifadozovejuduripilema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7702/5446/files/kadiviwotijugarovej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1044/0862/files/52858627848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7746/8311/files/71920793896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1566/5824/files/bibinofutimagamotegid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/24304717441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/42475779951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9572/5982/files/89221416855.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00007706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7706 4996 bytes
SHA-256: 2cd1ec056c1857fae06e2b8e7b7f103e92e0d76a95e59bbd0e80806c24493781
font_01_sfnt_off000087dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87DD 11348 bytes
SHA-256: cbef1abb7800414a0073bd1b9b6fc31d6c4e569f33d392118b6939eca00d3b30
font_02_sfnt_off0000ad15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD15 16200 bytes
SHA-256: 909e1284cb5cf330e420864cb10833f98e2764078d03bc4f2432c8e182b13f15

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