Malicious PDF — malware analysis report

Static analysis result for SHA-256 38048afaeee55939…

MALICIOUS

PDF

48.3 KB Created: 2020-08-19 02:09:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c51d9449da22b60f97c8d6eb4459caa3 SHA-1: cd29eb36f0714f2eca43457bbf7c411e0409dcf5 SHA-256: 38048afaeee55939a9111aad1d983b183104c847bf650fcb4eb195588c69e71a
194 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains, including Shopify. One prominent link redirects to a malicious URL, likely for a phishing or scam campaign. The ML classifier strongly flagged this PDF as malicious, and the heuristic firings confirm the presence of malicious redirector links and a link farm.

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=asvab+paragraph+comprehension+test+pdf In PDF document text
    • http://files.anis.nu/uploads/1/3/0/7/130739470/d7274e03428.pdfIn PDF document text
    • http://muverul.trails-and-errors.org/uploads/1/3/0/7/130740596/jigolixebo-xenoruzezemek-daxizepono.pdfIn PDF document text
    • http://files.peppahead.com/uploads/1/3/1/4/131453907/tudiferop-dikodewevelox-xedagim-kulanabasesi.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/1/0434/6871/8242/files/farozevabatemexusatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/vabikopovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9029/7507/files/99436799283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7007/8617/files/vuwudupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/1594943439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8087/4139/files/wupulog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4760/6679/files/rsse_children_overhaul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fejekav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4018/7303/files/4334738104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3033/1047/files/zafezojareromagotomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/wewamiredaxuwevopuvag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/0479/9639/files/bitixirevulofuboparoxi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D06 5728 bytes
SHA-256: d6e1b00d1eaecef3ecf3926c4ab1b8b4b08a773d0b30d21d680aa2391d2fbcd6
font_01_sfnt_off00009057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9057 10656 bytes
SHA-256: 7f4b6a87fe1afdd9a1da5f074726f3e8b95c536fcee1ae8e7cfd4385677e8f71

Open this report in the interactive analyzer, or submit your own file for analysis.