Malicious PDF — malware analysis report

Static analysis result for SHA-256 896190a9b885ae06…

MALICIOUS

PDF

62.8 KB Created: 2021-02-20 06:42:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ceda892aae636e99182dcb750dbfdb20 SHA-1: d2503fa7a50c7db9747acaa09aaf4423be310768 SHA-256: 896190a9b885ae068a0d93babbae441302186eadf111035d3b4e014b4c4e766c
186 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.
  • 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://baarspo.ru/wix?keyword=xanathar%2527s+guide+to+everything+free+download PDF link annotation
    • https://cdn.sqhk.co/rasepotobami/eighcId/classic_car_run_2020.pdfIn PDF document text
    • http://sezewadiwun.22web.org/kapusegi.pdfIn PDF document text
    • https://bagawilikazukir.weebly.com/uploads/1/3/1/0/131070307/babba1db5498.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/ciiijnR/pifajobidapi.pdfIn PDF document text
    • https://cdn.sqhk.co/mogezunir/FEjfkSb/24008311005.pdfIn PDF document text
    • https://wifojulov.weebly.com/uploads/1/3/1/4/131438113/tiwok.pdfIn PDF document text
    • https://cdn.sqhk.co/pozedezupase/hbNha2D/line_driver_car_audio.pdfIn PDF document text
    • https://ragulifogikub.weebly.com/uploads/1/3/3/9/133986704/364041.pdfIn PDF document text
    • https://cdn.sqhk.co/rureroso/BIjfHgh/paint_line_brush_vector.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/temujonuwu/boiler_control_system_engineering.pdfIn PDF document text
    • http://binasizula.rf.gd/dont_think_of_an_elephant_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/zoritikowelapasu.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/tv_guide_for_tonight_nsw.pdfIn PDF document text
    • http://vanudedu.epizy.com/91257405791.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/xopoxiriwexesigaresuxowob.pdfIn PDF document text
    • http://ribaxexumipo.rf.gd/vexejevunuxex.pdfIn PDF document text
    • http://jefelaxe.epizy.com/24028524084.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_off0000b837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB837 5436 bytes
SHA-256: 6e1eb24c40ccb73752172d37a22996d43af4e1150f22e00ac2fc28ace88c183a
font_01_sfnt_off0000cace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCACE 10272 bytes
SHA-256: 1e98c3d2aba3aa8435ae3fb4ba21ea82cee2a1c7f12ead0a68dbde575c768eb2