Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6370b5fa49c688d…

MALICIOUS

PDF

45.1 KB Created: 2020-08-20 02:01:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e96cbfea29992cb6cb025afa79ffd632 SHA-1: b836f0926ca4c28d4671adebdd574618818387d7 SHA-256: d6370b5fa49c688d4e52e4ee1029ee5bebc6a1a7088be6e2194a4a3bf10e8602
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a redirector to a URL promising information on hacking Android devices. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the malicious URL and several other PDF links, suggesting a link farm or redirection strategy to distribute further malicious content.

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=hack+wifi+android+root+xda In PDF document text
    • http://wisejeli.cmsaerospace.com/uploads/1/3/0/7/130775045/6025209.pdfIn PDF document text
    • http://files.aliyaturetayeva.com/uploads/1/3/1/1/131164442/pogoze-funepumege-puselejexojis-xekoli.pdfIn PDF document text
    • http://files.catherine-banner.com/uploads/1/3/1/4/131453267/f6c2aa21.pdfIn PDF document text
    • http://files.toymigos.com/uploads/1/3/1/8/131856381/61b8c1a.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/1/0432/9635/8565/files/velinevimijipijozuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4704/2715/files/wawulotejisatob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/wivulezuxetenawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8285/8144/files/gimerobixejodedovezapofas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/guided_meditation_for_stomach_pain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/74094290655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0261/0335/files/27958569770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2626/7816/files/86132442029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5791/6577/files/qualidade_e_acreditao_em_sade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/vumemawetawejagusot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7899/9446/files/93557921927.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_off000073dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73DD 4992 bytes
SHA-256: 7938620dd1b26e668766a27badd0f34b079aa8ffc765a0b0742cba2881845d1c
font_01_sfnt_off000084f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F2 10264 bytes
SHA-256: 3d9a3520fc395cfdaafd1601865cf20f73ba377d676ecff4570254cfa2747604

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