Malicious PDF — malware analysis report

Static analysis result for SHA-256 3185d0be1714c4b0…

MALICIOUS

PDF

69.0 KB Created: 2021-03-02 19:34:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 06878a84bf4dbac2ca5a2960d6a0d031 SHA-1: 6d6c1d33158bcb9d2d2df4fc13b0367975d5d552 SHA-256: 3185d0be1714c4b0a988f0c84dd8b76041060bf20c6d7f5ec8566b0a1e77c30a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/award?keyword=do+all+ge+refrigerators+have+a+drip+pan PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4470960/normal_5fd97442e1923.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378151/normal_5fe6f2ebbae46.pdfIn PDF document text
    • https://poxapoxidofex.weebly.com/uploads/1/3/4/0/134016688/9a7eab03a51e.pdfIn PDF document text
    • https://zopokobo.weebly.com/uploads/1/3/1/3/131383813/7208559.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407066/normal_6016fe479ee8f.pdfIn PDF document text
    • https://cdn.sqhk.co/rokajoten/hbSZjcR/shadow_battle_2._2_hack_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446917/normal_5fc680d3a557d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496853/normal_60121fbf40544.pdfIn PDF document text
    • https://cdn.sqhk.co/bevurokakug/heji8sR/321952479.pdfIn PDF document text
    • https://xekumubuwufalag.weebly.com/uploads/1/3/5/3/135345963/7e856.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462351/normal_5fdbfcc97e257.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/ji5jeif/24860322064.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/pajukovuxetu/epinephrine_davis_drug.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/4878910370.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/61215239160.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_off0000d21d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD21D 5364 bytes
SHA-256: 514b9f5f4221d34dce9dacf28b70c97337acc8f51ae51ddd668eab8ddc8e9239
font_01_sfnt_off0000e464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE464 10244 bytes
SHA-256: 4de95373a4342d54d6d675017091f5f5e41f38201c63d7cbaa5c39880d56ceea