Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d8063a482af209a…

MALICIOUS

PDF

42.9 KB Created: 2020-08-21 16:55:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d7a0d0faf4dae8038dbb10fe1a63e36b SHA-1: af1587b0a6e4fae9f3e290f3784b101f4c93016a SHA-256: 7d8063a482af209ad8de6bb70f5ac884caa19862598123e997a6499273e743d4
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body text, though corrupted, suggests a lure related to a 'manager performance appraisal form template'. The ML classifier strongly indicates maliciousness, and the primary IOC is the redirector URL.

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=manager+performance+appraisal+form+template In PDF document text
    • http://files.katemathiasauthor.com/uploads/1/3/0/9/130970004/xujepuzubefonaw_jalele_nowujijudage_jufibubebiju.pdfIn PDF document text
    • http://files.saltwaterstatecollege.com/uploads/1/3/1/4/131408970/joril.pdfIn PDF document text
    • http://files.mayaannaphotography.com/uploads/1/3/0/7/130739718/7410541.pdfIn PDF document text
    • http://butozozu.soulhealthservices.com.au/uploads/1/3/1/8/131856907/sexujevirudazarojeva.pdfIn PDF document text
    • http://files.geraldinepilgrim.com/uploads/1/3/2/8/132815346/6780435.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/1/0433/4590/3774/files/27701420003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1344/7577/files/ko_bushiri_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9449/7698/files/rezajolixaxuposaxewaresef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2891/files/aap_anxiety_treatment_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5900/9943/files/ekvillian_songs_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2734/7109/files/dozufadujiresakukeror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4529/8077/files/99923908943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8058/1274/files/keneteref.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1647/9132/files/movezuwagezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7777/9100/files/63098992272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4244/6231/files/figure_caption_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0710/6462/files/38789182546.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_off000069bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69BC 5340 bytes
SHA-256: c43642d84c4c551b77d4bdff31124c0e587216336096ae01ecd00325f68cb7d9
font_01_sfnt_off00007bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BDA 10184 bytes
SHA-256: ddd3cc2b2753d9669491574a325c26ae6a97e882ea800501dd6771c3588c9b13

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