Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa5c41eb62845b3…

MALICIOUS

PDF

86.3 KB Created: 2021-03-04 08:25:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9188b7bbbec87b9ef826404c94322b8a SHA-1: cd8c35f632e29d0a8041dfed0d916c2aef606a04 SHA-256: faa5c41eb62845b35f8b94d2d34a4ae06ae23d67fa4cb183fa0c811affd6d6b0
126 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 ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains multiple external URIs, including one pointing to 'soxebez.ru' which is likely part of a phishing campaign. The document body, though heavily obfuscated, suggests a lure related to 'Dish network joey keeps restarting'. No scripts were extracted, but the PDF structure and heuristics indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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
  • 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://soxebez.ru/strik?utm_term=dish+network+joey+keeps+restarting PDF link annotation
    • http://gachihyper.xyz/sony_crackle_tv_guidelpm0h.pdfIn PDF document text
    • http://surisetufuna.iblogger.org/tozozijagatali.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454977/normal_5ff4ad5ca1586.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/mMgdjbo/epic_seven_wiki_sigret.pdfIn PDF document text
    • https://cdn.sqhk.co/lojadisexudo/oIjhDkG/pexobubome.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/20563765773e12zh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426942/normal_5fe241e9381ec.pdfIn PDF document text
    • https://kuvixirizu.weebly.com/uploads/1/3/0/7/130739951/c5d07222.pdfIn PDF document text
    • https://kanexunife.weebly.com/uploads/1/3/2/6/132681916/461f8c0ea4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418001/normal_602458af9bb34.pdfIn PDF document text
    • http://tixshopclub.space/wagixitesomukimaesp4z.pdfIn PDF document text
    • http://copyright-securityx.com/analogies_worksheetz6ec6.pdfIn PDF document text
    • https://javufivupa.weebly.com/uploads/1/3/4/3/134349262/2ba68da4daabd4.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/likadojivivofu/oh_butterfly_song_lyrics_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/69543032658.pdfIn PDF document text
    • http://vafidufetavum.epizy.com/iso_45001_audit_report_example.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/nisilanizafetojosad.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_off000114e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114E6 5384 bytes
SHA-256: f60fe8963a8b8c4e5118ef2430afb87d8a346c140130349a8a59ffc2a171a966
font_01_sfnt_off00012754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12754 10644 bytes
SHA-256: 17f13049d3703a7e9afc362eae25f996251c04c387f5b3791be0b8133b54d8cf

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