Malicious PDF — malware analysis report

Static analysis result for SHA-256 27c1262c66b37661…

MALICIOUS

PDF

66.6 KB Created: 2021-02-13 09:04:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2e574564fb0c05e7c2bb6d4311927a79 SHA-1: 56f8637d5712521223f78fc5e52615481272cb97 SHA-256: 27c1262c66b37661972c0324ff7f6c67d9017901b1e764b45a8adaa9ed54efd0
124 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, many of which are associated with link farms and disposable hosting, suggesting a phishing or malware distribution scheme. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the ClamAV detection 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0' strongly indicate malicious intent. The presence of a URL with 'wallet+app++apk' in the utm_term parameter further supports the lure of downloading a potentially malicious application.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9660

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=wallet+app++apk PDF link annotation
    • https://funogumoduwe.weebly.com/uploads/1/3/4/3/134309977/metowatofefakila.pdfIn PDF document text
    • https://tizupokewa.weebly.com/uploads/1/3/4/0/134013062/7931248.pdfIn PDF document text
    • http://espaceclient-cmb.com/midotatxl1f5.pdfIn PDF document text
    • http://f1l3download.site/14821205195d9490.pdfIn PDF document text
    • https://pisolapep.weebly.com/uploads/1/3/4/6/134648883/vozus.pdfIn PDF document text
    • http://majidadap.22web.org/54962417709.pdfIn PDF document text
    • http://easy-money-cash.space/14461784688ftnpz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pamakejexo.epizy.com/nowaniretibedug.pdfIn PDF document text
    • http://tapegazopiguw.rf.gd/graduation_name_card_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/android_pay_paypal_polska.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/58875986226.pdfIn PDF document text
    • http://fipivolakiwupod.rf.gd/australian_cable_selection_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/chambray_blue_sheets.pdfIn 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA6E 4140 bytes
SHA-256: ea2a13f25275fa080145bd0af3a125f3f0ea79d7004720f47c48917700daa68d

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