Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b0ced0dda142c68…

MALICIOUS

PDF

40.1 KB Created: 2020-07-31 06:26:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f47086b0f7bf2edb3d35fd81072aa206 SHA-1: 68c7abfd944aefc38f3182b8e39457c571b1f890 SHA-256: 6b0ced0dda142c68f1402ffbf5838493088687ad04327e24c5d4a58f5ddffa12
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links designed to redirect users to a link farm of other PDFs, masquerading as a worksheet. The primary redirector URL is identified as malicious, indicating a phishing or scam attempt. The ML classifier strongly supports the malicious nature of this PDF.

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=plural+nouns+worksheet+pdf+grade+4 In PDF document text
    • http://files.brillionbaseball.org/uploads/1/3/0/8/130813118/0b0d36e58a.pdfIn PDF document text
    • http://files.chaskacusco.org/uploads/1/3/1/3/131398530/nafujisifugepigotisi.pdfIn PDF document text
    • http://files.hathawayfarms.com/uploads/1/3/2/8/132814168/sodarozak-xogitu-tufexon.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/1/0431/2930/7296/files/58902922957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5006/6339/files/wezinexonanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/tirogigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/22360052860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8582/4164/files/wemakaloperugipikorazubal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7485/4820/files/sanovaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/silelipoxejapubisapaxufop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6756/2391/files/maxun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6881/7562/files/47416218042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/dipajub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1274/2550/files/dijopekiralezepotopub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3845/7508/files/77007683614.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_off00005ee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE5 5384 bytes
SHA-256: 01143ee03f73363a66911479a67cf53d9bc00af64ff649dc29fe53918d70b63d
font_01_sfnt_off0000713f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x713F 9924 bytes
SHA-256: 7d6e148aff1bf251f1c0f669401ac8559f21fe051e5a10499ffaa119e6690ad1

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