Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e32b17f8397dd12…

MALICIOUS

PDF

42.0 KB Created: 2020-10-25 01:02:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 05bc574aebb21f13e9b1af110fbf113b SHA-1: fecdcdabc7e54b2c845dfc6c8c3e84e70c45b846 SHA-256: 4e32b17f8397dd12d68c2e9518b4d1e035a01f8ec7e6e89cf981bdaeadeedba0
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://cctraff.ru/strik?keyword=hudl+black+screen+of+death In PDF document text
    • https://xigokerurubupa.weebly.com/uploads/1/3/4/3/134312623/9e390d92e75.pdfIn PDF document text
    • https://mapipuluzobeb.weebly.com/uploads/1/3/1/3/131398440/xedisovu.pdfIn PDF document text
    • https://zuverefexogi.weebly.com/uploads/1/3/4/3/134316215/efa01426.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/muragajokumabo.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/welitozix-gigusedukigus-jimiwegelal.pdfIn PDF document text
    • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/5734794.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/9232432.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tadovu/que_es_aldea_global.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/betujovovedudigubomitis.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/gafuz.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/fixumizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1799/3877/files/19147222413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2631/6951/files/dr_burke_greys_anatomy_death.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7727/8627/files/gamen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1701/8267/files/tecumseh_hm100_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/6375/3927/files/32332136275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6919/6438/files/hd_wallpaper_for_android_full_screen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5573/3153/files/android_studio_button_border.pdfIn PDF document text
    • https://forums.androidcentral.com/showthread.php?t=355841&s=1eb0a4abc81694015fc796eda416fb84In 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
    • https://forums.androidcentral.com/showthread.php?t=355841&s=1eb0a4abc81694015fc796eda416fb84In 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_off000064d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D5 5276 bytes
SHA-256: b00d1861aa2e206e46abc6fb2046092e795ca9eb1ef2e6bb8f019c835e2e3d03
font_01_sfnt_off000076b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B4 10500 bytes
SHA-256: 7e7fa450ee326cd711fa76a5e4c7b9c3df134d12f68fcaeac29bf86a057e0bcc