Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6649acf8492cca8…

MALICIOUS

PDF

71.5 KB Created: 2020-12-27 12:18:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 5aeb063baa510f1105f9b05039f70565 SHA-1: 0d6c1acf2e291a19b69486b9a958e876d2e3ab2f SHA-256: e6649acf8492cca8fca2262607c949065d7174540afb77ff970a1c311cabafcc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://trafffi.ru/aws?utm_term=ben+10+alien+xenodrome+mod+apk PDF link annotation
    • https://kotimoxita.weebly.com/uploads/1/3/4/8/134878992/kekutenifevos.pdfIn PDF document text
    • https://wanuwoziburake.weebly.com/uploads/1/3/4/4/134458428/xunaluzerojasi.pdfIn PDF document text
    • https://lafapimiwegu.weebly.com/uploads/1/3/4/0/134041150/sowovonimimujelufima.pdfIn PDF document text
    • https://satizivuzaked.weebly.com/uploads/1/3/4/3/134383512/5214889.pdfIn PDF document text
    • https://guladusive.weebly.com/uploads/1/3/0/9/130969442/3247207.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454436/normal_5fa2d162e2e9c.pdfIn PDF document text
    • https://lumixomenuvaw.weebly.com/uploads/1/3/4/7/134745504/bcf45f99189.pdfIn PDF document text
    • https://mufobaxepomek.weebly.com/uploads/1/3/4/8/134866816/3888666.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6848fa27-5e3d-4ed5-9a21-53c04b1f8f2a/high_kick_through_the_roof_episode_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f4d8964-2a13-4ea3-87af-4ac09d7d59c8/how_to_paint_citadel_miniatures.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/041a6978-1cd2-4e23-85c6-c8442e7728d7/5506454127.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/70898841353.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/087b32cb-6ed9-4009-bbb1-dae65951598e/kenwood_kvt_512_unlock_code.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/93078007308.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/clean_force_1800_manual.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_off0000d75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75E 5304 bytes
SHA-256: 23ed7559170fc3edcf2bdc7f1c956fae0db24dddc72fe1239af58f0fbfdbaf90
font_01_sfnt_off0000e95c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95C 12636 bytes
SHA-256: a8824f9c261f4a819975fc3c0ec17b4228b30d6db10b8974ae16f2ea2e32bf16

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