Malicious PDF — malware analysis report

Static analysis result for SHA-256 f95d66cce137abde…

MALICIOUS

PDF

71.2 KB Created: 2020-08-08 18:07:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4eecf36579bce50a61366cfa797c937e SHA-1: df228f47bb283dbb106cc0162dc2e2038a7055fc SHA-256: f95d66cce137abde88c98d3d29212492a979ee790a0a50e68066a788f70689e6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector at 'https://ttraff.cc/pify?keyword=anlodipino+bula+pdf+anvisa'. Another critical heuristic identified a PDF link farm, with 'https://cdn.shopify.com/s/files/1/0431/8189/9944/files/jifenapufe.pdf' being the first listed. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, suggesting it's the primary lure. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious redirection attempt.

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=anlodipino+bula+pdf+anvisa In PDF document text
    • http://files.rcqma.com/uploads/1/3/1/6/131606325/batuzuzuvinetaluxe.pdfIn PDF document text
    • http://files.resfeberrecollections.com/uploads/1/3/0/9/130969298/fataj-magapararexel-nadipad.pdfIn PDF document text
    • http://varagome.creatrixmusicworks.com/uploads/1/3/1/6/131637136/sarakeje.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/1/0431/8189/9944/files/jifenapufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zukukujumifuxutage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/wisojejore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8705/0390/files/autorretrato_sin_mi_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/48145166668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/85489886695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8343/9003/files/cake_recipes_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/babuwezifobaritixugakow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/dukeworafexedisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mobisibat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/campbell_biology_10th_edition_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/15090911734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3558/8770/files/53416898229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5732/3925/files/27705405811.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_off0000d243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD243 5128 bytes
SHA-256: ff17853916e697f6abd57be88a2388f81f2e2f1884884c9b826aae5f3f124829
font_01_sfnt_off0000e3cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3CF 13960 bytes
SHA-256: 5b3db2fa1494ad739a197cc2392e5e890c97e89df08ef7d4592181944dd51b46