Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f18ad3bd35f6c2…

MALICIOUS

PDF

43.8 KB Created: 2020-08-01 02:02:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d15bb3b1bec08648a944dc6166c9a144 SHA-1: 4ab58f6eaadf92127892771f8eeeb1b00a20f33c SHA-256: 89f18ad3bd35f6c29024211fc008ddf37c468383d89abc809491b108de5c00a3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The ML classifier and critical heuristics indicate malicious intent, likely to redirect users to malicious sites or download further payloads. The document body, though heavily obfuscated, contains strings related to 'Microsoft print to pdf' and a suspicious URL, reinforcing the lure.

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=microsoft+print+to+pdf+paper+size In PDF document text
    • http://files.sincerelyyyourss.net/uploads/1/3/1/0/131070911/boziposuwiwekejene.pdfIn PDF document text
    • http://files.jackblairgray.com/uploads/1/3/1/3/131384018/eede518175.pdfIn PDF document text
    • http://files.goldcoastmodelrailwayclub.com/uploads/1/3/0/7/130775515/2605247.pdfIn PDF document text
    • http://files.weightknowmore.com/uploads/1/3/0/7/130775201/falujolasu.pdfIn PDF document text
    • http://files.andreacelestina.com/uploads/1/3/2/6/132681295/5ee594d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/wafesat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0412/3557/files/bajovizibujadaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/xadabodewevotep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7410/0127/files/54019707708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/notosejemiroketawoxekariv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3831/7471/files/gupupoligamakiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/daduvigafobiduwix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/lolulezosoxafob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4314/4355/files/2275517112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5463/5937/files/duwuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/1922947734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/fixorabunoziraxazuriz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0530/3190/files/muxagawovinufotu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C0 4960 bytes
SHA-256: f3a57d42be5a8128bf55e031c811c539607effaf84cf09c3a87e8feab98bd95e
font_01_sfnt_off000072ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72AB 9800 bytes
SHA-256: 069fd02c6ef21377e14f6b8231dda7509db4c8196f445cbf17ea3dd66e79468d
font_02_sfnt_off00009427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9427 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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