Malicious PDF — malware analysis report

Static analysis result for SHA-256 e714432e18c62717…

MALICIOUS

PDF

70.3 KB Created: 2021-02-11 15:04:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 64775d8d95ff58e63e37fa7f9382dee1 SHA-1: d58a81f413039a59aecddc728c286581b3e470bc SHA-256: e714432e18c627171dccf9ba6a0bb4058e1999857e605839fb56e41fe36e4712
196 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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://maypoin.ru/wix?keyword=tyrone+poole+net+worth PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4484156/normal_5fdf94e58531b.pdfIn PDF document text
    • http://judijemavup.22web.org/annual_report_indofood_sukses_makmur_2017.pdfIn PDF document text
    • https://bosazafaxaku.weebly.com/uploads/1/3/1/3/131383721/dba76d24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420752/normal_601cbca7487b6.pdfIn PDF document text
    • https://vegipojefatelon.weebly.com/uploads/1/3/4/8/134876486/nazolima.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/3d_pool_game_for_pc_free.pdfIn PDF document text
    • https://jakuxibakamu.weebly.com/uploads/1/3/1/4/131407414/likuxim-dotezomoletutik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464734/normal_601a636d6e42b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381788/normal_60037a86690ef.pdfIn PDF document text
    • https://cdn.sqhk.co/forexidof/gcihigL/super_nintendo_mario_kart_price.pdfIn PDF document text
    • https://cdn.sqhk.co/kigowabalo/jjdjgNv/62129360582.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451752/normal_5ff84c96d7d4a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449399/normal_5fcf062e6701a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bakilipos.epizy.com/dell_precision_m4800_bluetooth_driver.pdfIn PDF document text
    • http://kisetifanuxutol.epizy.com/guxariwavawazobodu.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_off0000d75a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75A 4664 bytes
SHA-256: 361278ebab6953a468ae4a808f502ef0c002067c3a2f32bb1d4bab8175f87503
font_01_sfnt_off0000e746.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE746 10800 bytes
SHA-256: a6e6c1ff8edb75ac04d45da0a197108e90d3ffa4f48607c8b4c3c2cb63688e12