Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d971a1ec2682692…

MALICIOUS

PDF

67.6 KB Created: 2021-02-05 05:57:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 0715be066fb9bb8e11f421b2c6c5680c SHA-1: a6355aa5d06ed93bc4ba154d5f241b9dbf0164eb SHA-256: 7d971a1ec2682692099b2fb3407a6d7e242a4002e2b7fb994568d8b1ff55a5d5
124 Risk Score

Malware Insights

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

The PDF contains numerous external URIs and is flagged as a link farm on disposable hosting, indicating a phishing or malware distribution attempt. ClamAV detection and ML classification further support its malicious nature. While no scripts were explicitly extracted, the presence of external links suggests it may lead to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8050

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
  • 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
  • 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://jacksth.ru/aws?utm_term=bypass+road+movie+songs++mr+jatt PDF link annotation
    • https://komamezumef.weebly.com/uploads/1/3/1/3/131398541/damasijipezisixuba.pdfIn PDF document text
    • https://cdn.sqhk.co/novozefox/jehgieG/wudinaxuwusal.pdfIn PDF document text
    • https://cdn.sqhk.co/vimewiki/Gibr57x/25874409475.pdfIn PDF document text
    • https://pebepatesova.weebly.com/uploads/1/3/4/4/134447190/9037283.pdfIn PDF document text
    • https://wetuwene.weebly.com/uploads/1/3/5/4/135400298/jubodogudu_tawodemopof.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/lomogas/30475429137.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/william_beveridge_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/6544551684.pdfIn PDF document text
    • http://gejulakan.epizy.com/98624573151.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/sexibu.pdfIn PDF document text
    • http://gaditerigasut.rf.gd/beyblade_v_force_2.pdfIn PDF document text
    • http://pitupeg.epizy.com/o_baby_song_free_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/laberafivufuteg.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/organic_chemistry_application.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE221 5536 bytes
SHA-256: a36e56d6a9efc886235ac00537cc9b729ca30dfeebfbecb3dd2bcf25bc855f90

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