Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cd15e3034d0efab…

MALICIOUS

PDF

62.8 KB Created: 2021-01-19 04:03:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 6efdf97f2c69474e0ae6648ad6be72e7 SHA-1: 444031492bfbe58a42c1799bf2a3b5aba0b5efdb SHA-256: 8cd15e3034d0efab4fbfa307591a00dc4d025a7299a2846557e84dc9769d94f7
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/aws?utm_term=bascula+omron+514+manual'. This URL is likely used to lure the user to a phishing site or download further malicious content. The ML classifier also strongly flagged this PDF as malicious, supporting the redirector finding.

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
  • 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.
  • 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://gettraff.ru/aws?utm_term=bascula+omron+514+manual In PDF document text
    • http://tosufiloxosi.66ghz.com/regafopojov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474222/normal_5fdf9efd7a7c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418385/normal_5fa5fea294713.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446925/normal_5fe2578ac6040.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vibulowivez.epizy.com/77225848099.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/marketing_mix_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/atomic_radius_trend_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/tuvatagufarenuvawoxemiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/29319680274.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/full_wave_rectifier_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/30359390391.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/wiwaribokonuropobewujid.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/xidumepivonivibefato.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/39350117425.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/streaming_video_er_android_app.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/virumegalemububevewame.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/merge_two_excel_sheets_by_column.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_off0000b9a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9A1 5256 bytes
SHA-256: 86309c06402f2a187ac9288e5cb18ed79d0ecd07475943cd253f675ae34fcf5a
font_01_sfnt_off0000cb7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7A 10288 bytes
SHA-256: 46bb0d5a304bb53c72f34fa5c192c31d7307b858cba13cecd144a4c6909e1250

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