Malicious PDF — malware analysis report

Static analysis result for SHA-256 14e5033797caaa53…

MALICIOUS

PDF

54.5 KB Created: 2020-07-27 11:21:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b9b19e428e8a8e6465732065b1ce9468 SHA-1: b1277a6bd175bd55ef0d7b45fee9a89704e84738 SHA-256: 14e5033797caaa530b06f0dd33ebf4bd070226e533777c95bea56804e2a1afc7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic identifying a redirector to known malicious infrastructure. The document body, though heavily obfuscated, suggests a lure for a PDF download related to 'symbolic interactionism in sociology of education'. The presence of numerous external PDF links, many pointing to Shopify, further indicates a link farm designed to drive traffic to potentially malicious 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.ru/pify?keyword=symbolic+interactionism+in+sociology+of+education+pdf In PDF document text
    • http://files.yummypersianbite.com/uploads/1/3/2/6/132695294/7872dbaba702.pdfIn PDF document text
    • http://files.429delancy.com/uploads/1/3/0/8/130873708/9778697.pdfIn PDF document text
    • http://files.lihmsisters.org/uploads/1/3/0/8/130814085/zoriva-fasaxomufuzo-linowesepuwisu.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/1/0434/2808/5912/files/7084164581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4488/7966/files/tudezovazeworenanalewes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/49387947090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/jopofok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2333/4567/files/pinimonifalobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/51395387040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/xajoxegar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/xofetapanitutanunowine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4632/files/pekoxomilik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/weroxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4507/7660/files/fopobalokuneza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/fetusekafukana.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 4

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_off00009740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9740 5700 bytes
SHA-256: a20ad3abbc709957a6e947afd543e506c7d795d1ee09df98714cdd2ce4face87
font_01_sfnt_off0000aa85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA85 10040 bytes
SHA-256: bd70518f9054ce32559bd497e9f17022a60bc44041e3cc3de915d3a7ae186b5e

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