Malicious PDF — malware analysis report

Static analysis result for SHA-256 e521c223fe1179c9…

MALICIOUS

PDF

43.9 KB Created: 2020-08-07 22:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6365056c699393874c571cb9a1dcebef SHA-1: 2fe5973a8666b0d6b291650ab747bab38ffbe61c SHA-256: e521c223fe1179c993e0c693367889c0c158b98dc0dabd4a12f01fad628f9e76
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=corporate+finance+and+risk+management+pdf'. The document body, though heavily obfuscated, contains text suggesting a lure related to 'corporate finance and risk management pdf'. This, combined with the heuristic firings for a malicious redirector and an advance-fee scam lure, indicates the document is designed to trick users into visiting malicious sites, likely as part of an advance-fee fraud scheme.

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=corporate+finance+and+risk+management+pdf In PDF document text
    • http://files.ethelbustamante.net/uploads/1/3/1/4/131406356/7012749.pdfIn PDF document text
    • http://zuvawatos.wastecap.org/uploads/1/3/0/9/130969204/36a7390418dc5b.pdfIn PDF document text
    • http://files.samgevers.com/uploads/1/3/0/8/130813841/2006931.pdfIn PDF document text
    • http://files.styer-fitzgerald.net/uploads/1/3/1/1/131164446/86851de02847b1.pdfIn PDF document text
    • http://dokisaz.queenofthewaves.net/uploads/1/3/2/7/132740900/jexisowerawemug_fovor_vudazezekurup_tusogujomelaxef.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/1/0428/9835/8432/files/65545430121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/balerukojikemudevin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5190/0310/files/rujelibuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3550/8381/files/dusazonunawas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/veronojawalojugorurasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0346/1283/files/job_acceptance_letter_from_employer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9911/2099/files/woxilenavabamonon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1260/1502/files/dekigegunodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5161/3336/files/tagawixatilanegabug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/vekijilufegozolet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/kopebofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9853/0201/files/kukenemenabal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/sifepugutijo.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB0 5412 bytes
SHA-256: 2e3ad09078075127c1f658f011120ab8219bb92ecc5286188689bbfa8cf62af5
font_01_sfnt_off00007f05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F05 10208 bytes
SHA-256: 2b2fc2a174755a3e1c5268b6b928edb63be3aa8dec6e872b539fcc07d9a60647