Malicious PDF — malware analysis report

Static analysis result for SHA-256 e32b803d52680e61…

MALICIOUS

PDF

41.9 KB Created: 2020-08-06 22:26:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d960d8fc4c3cfeb287d7dc5ca7551e1f SHA-1: 1d0b6a111be5fc22e1610a06dccfc8c3bbc08353 SHA-256: e32b803d52680e614bcbc6ffcda61a9dca3694b15703c99fc667ea953018f599
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains URLs that are part of a link farm designed to direct users to potentially malicious content. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is used for malicious redirection.

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.ru/pify?keyword=accelerometer+calibration+pdf In PDF document text
    • http://nusowelo.lucyclaireofficial.com/uploads/1/3/0/7/130775734/9388e.pdfIn PDF document text
    • http://files.acmeng.com/uploads/1/3/0/8/130814680/5809623.pdfIn PDF document text
    • http://joxukojep.heinrichtoh.com/uploads/1/3/1/4/131406893/xemiwomewifuferov.pdfIn PDF document text
    • http://dipoku.sweetreesmaple.com/uploads/1/3/1/4/131407424/fibadito-roluvum-ribivufafotesox-gatowogefijejir.pdfIn PDF document text
    • http://files.migrainepro.com/uploads/1/3/0/7/130775590/vuvawibigolo.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/1/0431/0820/4704/files/tijugelukelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0189/5322/files/zigabukefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1613/4551/files/97426114435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/kasunekozabutogarakiloze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/vesogenotukelaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/fegitatujorudovefoxeler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62042090741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2871/files/82585960071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1440/6823/files/95451415543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5608/6696/files/11077454364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/mipogodifolagenip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3151/0690/files/5410651040.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 2

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_off000065d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D6 5252 bytes
SHA-256: 01f34cfd81a71fc00cd26095ca44f79ce6b309cd788924928274e5d4bbb86ffb
font_01_sfnt_off00007794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7794 10272 bytes
SHA-256: 5b01144ac58a6730c0ad64e7be00c35488821acdcec94c9290eb445b152cb5c8

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