Malicious PDF — malware analysis report

Static analysis result for SHA-256 879193f5844c092b…

MALICIOUS

PDF

146.9 KB Created: 2020-08-03 01:29:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8270c45ff5e5e8ef050393747de57f04 SHA-1: 64ef195fe5d176d7d828708d1fbe443dbf2f22df SHA-256: 879193f5844c092be566b25c40b07c8c2100163c6977aadabf7a7fd910e6bd66
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, identified by multiple heuristics as a high-risk element. This redirector is likely intended to lure users into downloading further malware or visiting a phishing site. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=enter+the+gungeon+crutch In PDF document text
    • http://files.dwmfoundation.org/uploads/1/3/2/8/132815752/bosina.pdfIn PDF document text
    • http://files.conscious-pictures.com/uploads/1/3/1/8/131871823/5215534.pdfIn PDF document text
    • http://files.borderpartnership.org/uploads/1/3/1/3/131380612/papiw_wamifelakanarow_sugonosokeleto.pdfIn PDF document text
    • http://files.oldfieldtubeamps.com/uploads/1/3/1/3/131381900/9699994563.pdfIn PDF document text
    • http://files.maltbyhilltop.com/uploads/1/3/1/0/131069863/6034152.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/1/0432/7312/6052/files/57237083703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0234/7168/files/2291388757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/undo_last_commit_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/xumexudepibemujawebesiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3998/8648/files/convert_mov_to_gif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/zalovosurawexinugezanir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2741/2645/files/contemporary_management_10th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/virezukevupula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89186344985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3988/1376/files/4125795931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/nupirarakir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3523/8301/files/kopiwomukopopujigazugi.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 8

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_off0001ff90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FF90 4600 bytes
SHA-256: c83ebfc8f1084830c89119210192a6bca95fbd3f17c6cddaad27645908e8ea0d
font_01_sfnt_off00020f3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20F3D 14972 bytes
SHA-256: 5913dd8b397208d5b37198d70b5e34d642a57786d7b6bc46b401981c43fcd985

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