Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1c98898a0dff763…

MALICIOUS

PDF

46.0 KB Created: 2020-07-29 19:16:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aec2bf1b0b1b5e9b8f1e3bdb96b92199 SHA-1: de37441484a064dcad8a458dd3f2f8be4cf09797 SHA-256: f1c98898a0dff763a1e40c6235982fd2a4f33c5d1a1f0b085949acb570658310
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic firings indicate this PDF is designed as a link farm, likely to distribute malicious content or facilitate phishing. The ML classifier strongly supports the malicious nature of this document. No scripts were extracted from this sample.

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=3rd+conditional+activities+pdf In PDF document text
    • http://files.gordonlheath.com/uploads/1/3/1/0/131071035/7684479.pdfIn PDF document text
    • http://files.johnsharppictures.com/uploads/1/3/0/8/130814611/baxenurubidejodal.pdfIn PDF document text
    • http://files.253baseball.com/uploads/1/3/1/4/131483154/jogesetunuj_jalukob_mipamu.pdfIn PDF document text
    • http://files.waveloopart.com/uploads/1/3/2/7/132740343/883d0.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/1/0434/2526/7877/files/54930528506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0254/1726/files/dubikakegabudojuxasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/teluzaditomab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2768/4760/files/58806993169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7901/5327/files/68229865764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0757/3157/files/1861707174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72966212333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/62907367691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5708/files/zorujikatenaguxufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3502/5831/files/87713416992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5833/files/81220714172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2940/5600/files/bizaru.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_off000076b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B4 5064 bytes
SHA-256: 416b185fc9afae31eabba55d847477ce8f49ec9a628817959097b43ad39ad484
font_01_sfnt_off000087e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E8 10200 bytes
SHA-256: 21169fa9319cc9bdc2774d3957cad788f318eaea65bfb2a7a1caad6c224de110

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