Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ce11a846112a895…

MALICIOUS

PDF

74.9 KB Created: 2021-02-26 16:44:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 70ffcf2834db7c3c42da961ed5c8f8d0 SHA-1: c0c662528421e4a0e51177ea7c60a177500a6a94 SHA-256: 8ce11a846112a8954d6495e60b6962233024b41e4c1ccc049f71189f87d0f9ac
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search query, designed to trick users into believing it is a legitimate search result. This URL, https://lozipotod.ru/award?keyword=how+much+oil+does+a+2006+nissan+altima+take, is the primary indicator of malicious intent. The file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, strongly suggesting it is a phishing or malware delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9775

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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://lozipotod.ru/award?keyword=how+much+oil+does+a+2006+nissan+altima+take PDF link annotation
    • http://siwosupegejolop.medianewsonline.com/56747419517.pdfIn PDF document text
    • http://sacredname.ru/792805164712i8zn.pdfIn PDF document text
    • http://mirijesuwakug.sportsontheweb.net/is_per_capita_income_gross_or_net.pdfIn PDF document text
    • http://idealslimitaly-official.site/constitucion_de_venezuela_1811_resumenikcyf.pdfIn PDF document text
    • http://fotubobuwenapu.scienceontheweb.net/metro_2035_book_review.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/basozufigedogur.pdfIn PDF document text
    • http://taxevidel.medianewsonline.com/gagetopurefepulo.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/zunewidimem/rejaratugurogazenufefosaf.pdfIn PDF document text
    • http://rujidafedisezu.atwebpages.com/42772735322.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/wokezafetamupesiwix.pdfIn PDF document text
    • http://vujuvisesakok.myartsonline.com/bonezat.pdfIn PDF document text
    • http://rukukuwozar.epizy.com/bullying_in_school_news_report.pdfIn PDF document text
    • http://gewumene.epizy.com/top_10_anti_malware_android.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/70860661316.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/draw_sheets_for_lawn_bowls.pdfIn PDF document text
    • http://resisimokopi.epizy.com/17672896512.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/fumixifu.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/barbie_dreamhouse_adventure_hack_apk.pdfIn PDF document text
    • http://rilexukalenenig.rf.gd/87422378250.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/starch_and_iodine_diffusion_lab_answers.pdfIn 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_off0000f464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF464 5628 bytes
SHA-256: b385b957f7f83d4cafffdc0a1205c95a4cabe4a44abb49d75366cbf7f1876931
font_01_sfnt_off00010772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10772 10180 bytes
SHA-256: cf1cbe7d6889100fe36fc758a5ad5293652f9cb0bf922b62725f4d224b50270e