Malicious PDF — malware analysis report

Static analysis result for SHA-256 d91e0195cad6a064…

MALICIOUS

PDF

64.8 KB Created: 2021-01-18 09:11:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: b16eda05efbfb6882ef666d4e3a65bf3 SHA-1: 1e6ca2beecc00da2cd6344b6dc0fca07a65edfaf SHA-256: d91e0195cad6a0645235e637caab972745f9eeef2c7b627f5ba0da345e9bab7c
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://gettraff.ru/wb?keyword=clock%20face%20with%20hands%20clipart In PDF document text
    • https://static.s123-cdn-static.com/uploads/4446492/normal_5fdf1d38ba623.pdfIn PDF document text
    • http://letekidela.iblogger.org/11934712625.pdfIn PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/rilalivolemo-gijaka-zanukupajusu.pdfIn PDF document text
    • https://tifixexeruwa.weebly.com/uploads/1/3/2/6/132682204/wovuguj_mudabapiwuzaje_fudipidevitujit.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/djdjegT/cyber_hunter_ranks.pdfIn PDF document text
    • https://jafedemigizol.weebly.com/uploads/1/3/4/5/134588438/xazonomoneji_gamuvi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375194/normal_5ff0939977937.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/jheTBqp/11street_malaysia_contact_number.pdfIn PDF document text
    • https://siviwoxepigomuz.weebly.com/uploads/1/3/0/7/130739754/d081d61b2d85.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368762/normal_5fdf290da4416.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427821/normal_5fcbdddf8c6bd.pdfIn PDF document text
    • https://cdn.sqhk.co/lofakekaf/ismijhc/craigslist_denver_jobs_wanted.pdfIn PDF document text
    • https://cdn.sqhk.co/pinebiven/AjhajiP/stay_alive_ps2_game_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379491/normal_5fe9f6cf3d57c.pdfIn PDF document text
    • https://cdn.sqhk.co/jekidase/bhj6hjp/pokeball_plus_sword_and_shield_exp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuzariwa.rf.gd/paint_the_town_red_beneath_guide.pdfIn PDF document text
    • http://jujewejono.epizy.com/blood_test_questions_and_answers.pdfIn PDF document text
    • http://pijularof.epizy.com/23148800850.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_off0000c211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC211 5304 bytes
SHA-256: 68f7437e2d53d4c26b4ed1a4bf00c378e13ac7f3a50b5ca1cf14e39cebe38bd2
font_01_sfnt_off0000d42b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD42B 10064 bytes
SHA-256: 76b72fa696e5b43a5f7579f36740aa7a72d82e56077fa040d48ac6cda4eed547