Malicious PDF — malware analysis report

Static analysis result for SHA-256 345f7dd4dfae9ba4…

MALICIOUS

PDF

81.0 KB Created: 2021-02-25 06:08:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e3279a2a54c835d607d08f0cf151ccdd SHA-1: f0bc130671ab1ab0a5a34baf62d82e688cfb1749 SHA-256: 345f7dd4dfae9ba44f80b0b28feee5a8b8c209b927a53e33da0b7c459f1c18cd
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, contains text related to connecting network devices, suggesting a phishing or scam lure. The embedded URL `https://baarspo.ru/strik?utm_term=how+to+connect+dish+network+receiver+to+wireless+internet` is likely the primary payload delivery mechanism, aiming to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=how+to+connect+dish+network+receiver+to+wireless+internet PDF link annotation
    • http://iranomics.com/9162790965wejtx.pdfIn PDF document text
    • http://zevewidojodot.mywebcommunity.org/88828938325.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466673/normal_5fce6b762c9ff.pdfIn PDF document text
    • http://smartycredit.info/29866251861m5mxi.pdfIn PDF document text
    • http://trydouche.xyz/260907696069dks.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/the_boy_in_the_striped_pajamas_movie_rating.pdfIn PDF document text
    • http://lg-supportteam.com/10845956204lg2rp.pdfIn PDF document text
    • http://tranquils.space/netgear_gs108pe_specificationsaqs8u.pdfIn PDF document text
    • http://nafarami.medianewsonline.com/jiwizotaximof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489035/normal_5fe6682cc0ab3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473651/normal_60276648617c1.pdfIn PDF document text
    • http://golixudib.mypressonline.com/ruzimowezob.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/bupijila/calculus_larson_6th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/vinumatuvamal.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/michigan_involuntary_manslaughter_sentencing_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/nuwaneregoxemuzonasebejij.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/biblia_peshitta_gratis.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB46 4992 bytes
SHA-256: a8bf7fd566e2d9c478cac879cc00f22aefe7ec870f527a4724e01db99234a53a
font_01_sfnt_off0000fc4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4F 10708 bytes
SHA-256: cf5bc61ce58e0cb6f4fbbc30e81e0af27bd6b5002f4d19b18a1cc401ee9b15bb
font_02_sfnt_off000120ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120ED 16204 bytes
SHA-256: c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449

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