Malicious PDF — malware analysis report

Static analysis result for SHA-256 169fc68b9f5453b2…

MALICIOUS

PDF

73.0 KB Created: 2021-02-13 23:00:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: feafc85b6d6915176771856ef2026726 SHA-1: 3a5f79fc603a8af0b7abdb289771f4961851aa02 SHA-256: 169fc68b9f5453b297240233f31026a3d90403a2b6461e3cd9d8467052b61f88
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/wix?keyword=beretta+nano+guide+rod PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366313/normal_60129a9095944.pdfIn PDF document text
    • https://fojiwuduz.weebly.com/uploads/1/3/5/3/135309278/4466044.pdfIn PDF document text
    • https://wupizesave.weebly.com/uploads/1/3/4/5/134581048/c5ab4816f.pdfIn PDF document text
    • https://dimalosuzilem.weebly.com/uploads/1/3/1/4/131452887/fba861ed865c839.pdfIn PDF document text
    • http://cpskras.website/ferore425d9.pdfIn PDF document text
    • http://bit7.top/xunumivam7895q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369520/normal_6012c08b466de.pdfIn PDF document text
    • http://baffer-shop.space/hoe_beveiligde_printen9d2li.pdfIn PDF document text
    • https://labekefetimobu.weebly.com/uploads/1/3/0/7/130739294/widibumaxerexa.pdfIn PDF document text
    • https://ruxetire.weebly.com/uploads/1/3/1/3/131379726/kenerurotesof_fesux.pdfIn PDF document text
    • https://zoxawilasewowi.weebly.com/uploads/1/3/0/9/130969521/jewarigiv-zizepugerisum-wejinivazusokon-xoxuxi.pdfIn PDF document text
    • https://musisemikalig.weebly.com/uploads/1/3/4/6/134694348/xorakomutejifalepax.pdfIn PDF document text
    • https://jopuwijexanubuf.weebly.com/uploads/1/3/0/8/130874501/tikujofa_tejeketa_lafitape.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/sefiwegegagu/zipurig.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/language_guidelines_crossword.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/blitzkrieg_2_free_full_game.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/windows_7_boot_usb_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/jepivobezonefol.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FF 4832 bytes
SHA-256: 94ca515e51574bb864475e7d5f6e28629f5e02a9cceb63f4423a88bf336701c8
font_01_sfnt_off0000f27c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF27C 10644 bytes
SHA-256: fb0802b1897fae32f453c881a879669110821723476cb91de09a8cc2f1d7e8dd

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