Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8b001a45af3289c…

MALICIOUS

PDF

36.0 KB Created: 2020-08-08 18:07:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f5f336db9379bbbad0f38eace0c626f SHA-1: 67c8ba004295d5d8dac66c96c3c0d616319f1805 SHA-256: c8b001a45af3289c4c983d3c3baba68188064dc0b09ff6b6926117ddcb505f6d
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, indicating the document is designed to lead users to harmful sites. The presence of a link farm further suggests an attempt to game search engines or distribute content broadly. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links.

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=christian+apologetics+pdf+download In PDF document text
    • http://files.primarytechunit.com/uploads/1/3/0/8/130814343/6412260.pdfIn PDF document text
    • http://files.countertourism.net/uploads/1/3/2/6/132682974/mojuxasatelupor.pdfIn PDF document text
    • http://kadejigo.norunovelties.com/uploads/1/3/0/7/130775403/xasom.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/1/0440/4789/2630/files/xorolasuwipovexuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2957/files/zovalixexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4112/0679/files/viper_alarm_installation_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/wapawidexumurezegaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8316/0995/files/kabhi_khushi_kabhie_gham_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1685/5453/files/25511032437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0307/4971/files/wamokugudeguva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7506/7297/files/tatasogejutupaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7554/2950/files/1305484139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0379/6894/files/18244345186.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 5

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_off00004e74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E74 5416 bytes
SHA-256: 2651591c386bfb224bbdfe5e64073a95fabf7c586278f53f44b34af5ad6fd63f
font_01_sfnt_off000060e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E6 10064 bytes
SHA-256: 173fe22d2df44dcf667d9d52efe98d654c34c6a6b0017484e30f974b2ea12527

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