Malicious PDF — malware analysis report

Static analysis result for SHA-256 e482833d130e9947…

MALICIOUS

PDF

92.6 KB Created: 2021-02-27 21:02:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 93f5a3657c1304f10e27cd8cb27ee6ec SHA-1: 2770c1112abb2dfe12227ec0a0098adf7b3dc50d SHA-256: e482833d130e994797539203834c567f855c9551f00ac31d9624a0a0a39639cd
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, including one that appears to be a search result lure for car features. The PDF is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan. The presence of numerous links to disposable or suspicious domains suggests an attempt to redirect users to malicious content or phishing pages.

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
  • 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://golowaki.ru/strik?utm_term=does+the+2019+mazda+cx+5+come+with+remote+start PDF link annotation
    • http://nokojatagi.mywebcommunity.org/ziwed.pdfIn PDF document text
    • https://dutosagow.weebly.com/uploads/1/3/0/7/130775111/2439533.pdfIn PDF document text
    • https://simokenuma.weebly.com/uploads/1/3/5/3/135311421/5243311.pdfIn PDF document text
    • https://wisobujiraru.weebly.com/uploads/1/3/5/3/135329541/5073851.pdfIn PDF document text
    • http://figuxovutofid.mygamesonline.org/90261108793.pdfIn PDF document text
    • https://xugugizebe.weebly.com/uploads/1/3/1/4/131482894/gaduxot_zokej_badanawa.pdfIn PDF document text
    • https://fitisasituwag.weebly.com/uploads/1/3/4/8/134846324/zuwurifolizaj-moladixobudarad.pdfIn PDF document text
    • https://saniluje.weebly.com/uploads/1/3/4/3/134323688/997185.pdfIn PDF document text
    • https://xudidetopos.weebly.com/uploads/1/3/4/5/134579215/f7c59cef970c64.pdfIn PDF document text
    • http://lupelisizi.medianewsonline.com/41057691776.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zejibanunepi.myartsonline.com/wuzede.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/xevubotelepuwus.pdfIn PDF document text
    • https://s3.amazonaws.com/lawakux/21854520750.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/attarintiki_daredi_tamil_dubbed_movie_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/70858298651.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/27742569321.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_off00012b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B48 5960 bytes
SHA-256: fe92e7aee32956b664626500b2adc6759b47c2ed298e8bba4ae485f4c48e5561
font_01_sfnt_off00013f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F97 10976 bytes
SHA-256: 96648a052d5b7ee902a0ea1fa75607ff99eb3315158675e823fe0560601eb84c

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