Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e2c7f4074dfc992…

MALICIOUS

PDF

50.3 KB Created: 2020-08-08 20:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f878e80203bd113b4310c460debc1b7a SHA-1: 9695418ca77aab53a7fa08b41677ff5e149efacb SHA-256: 3e2c7f4074dfc99207ff44607c4d9897c48136aa6330f6b3a9300243a7fe287e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link that redirects to known malicious infrastructure, disguised as a 'Bsc physics syllabus pdf'. The ML classifier strongly indicated maliciousness. The document body and embedded links are part of a link farm designed to obscure the malicious redirector.

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=bsc+physics+syllabus+pdf In PDF document text
    • http://felof.sakivintagekimono.com/uploads/1/3/0/8/130813108/1668084.pdfIn PDF document text
    • http://files.miguellevy-paintings.com/uploads/1/3/1/3/131384229/memisumogapiviz.pdfIn PDF document text
    • http://files.especiallyforyou1.com/uploads/1/3/0/7/130775786/3576f.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/1/0434/0390/3127/files/dijudorogupitep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9005/1221/files/25764267094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1347/1384/files/gowonojavaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6250/files/rig_veda_mantras_in_sanskrit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4710/5191/files/date_class_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2552/3103/files/23192468910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8307/5477/files/goat_rearing_in_uganda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3126/3394/files/95972379931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2518/7491/files/dujijelidogedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7536/1178/files/84202992538.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 6

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_off000075e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E3 4904 bytes
SHA-256: b7ba5fc2a701d25326723c9ec066265a4f6370d3809b5276f83c2ed22f1b742a
font_01_sfnt_off00008692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8692 12268 bytes
SHA-256: 21362ab1fccae8f9966c5efdb30902d31e75458f32f501bc4903fe5329011c9c
font_02_sfnt_off0000ae29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE29 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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