Malicious PDF — malware analysis report

Static analysis result for SHA-256 243eeb9cb5e5cb10…

MALICIOUS

PDF

75.5 KB Created: 2020-12-27 09:34:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: dc1964884f51dac12d113e977266b41a SHA-1: 3ef28b28c5cc0049b63550037fdedfd3149470b5 SHA-256: 243eeb9cb5e5cb104f5a70ae8ab7933069d3aeb17dfbf1e7450e9b0e9b643718
244 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
  • 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.
  • 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.
  • 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://traffine.ru/aws?utm_term=sony+android+tv+update In PDF document text
    • https://cdn-cms.f-static.net/uploads/4386621/normal_5f8de94430069.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_5fa45eb8a255e.pdfIn PDF document text
    • https://mavevataxivira.weebly.com/uploads/1/3/4/6/134600118/moxofazipajilijewabu.pdfIn PDF document text
    • https://zedaluridafam.weebly.com/uploads/1/3/4/4/134464222/terej.pdfIn PDF document text
    • https://zuxosudeti.weebly.com/uploads/1/3/4/3/134359900/54039.pdfIn PDF document text
    • https://cdn.sqhk.co/ludafojebi/gfjrjjq/fenejenopifavafonitibeg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477387/normal_5fdacbe39c943.pdfIn PDF document text
    • https://cdn.sqhk.co/merodobiweve/R7haHkS/little_boy_adventure_stories.pdfIn PDF document text
    • https://tafesexetunikej.weebly.com/uploads/1/3/4/5/134576544/1620211.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4527237/normal_5fd7de848a20c.pdfIn PDF document text
    • https://xunowivoratidom.weebly.com/uploads/1/3/1/6/131636824/falilerowunus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450046/normal_5fa428034cd43.pdfIn PDF document text
    • https://dugigoje.weebly.com/uploads/1/3/4/7/134754128/3db132597e.pdfIn PDF document text
    • https://kekisadubivef.weebly.com/uploads/1/3/3/9/133986731/melofuxavijoguximob.pdfIn PDF document text
    • https://zavamemedu.weebly.com/uploads/1/3/4/3/134305249/9446434.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ebad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAD 5008 bytes
SHA-256: 8a8b43a0a1dcb5817d4592efa1796d02991ce86fe404f4953f5509a3f14d0add
font_01_sfnt_off0000fcd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD9 10800 bytes
SHA-256: 3b31c98f5b66d145c58a64d6c942b1b2aa841659eb9a787114ed6e88d0637a4c

Open this report in the interactive analyzer, or submit your own file for analysis.