Malicious PDF — malware analysis report

Static analysis result for SHA-256 6972233ba315618c…

MALICIOUS

PDF

72.6 KB Created: 2021-03-19 17:41:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: e153096815e987540ad5fa32182a520b SHA-1: 6ea1046dc8d242cc46a32c89a166e7a055b9ebd1 SHA-256: 6972233ba315618cf6d26e4ad7f14a69615fa0a4f162f11c71d79984f3c21af9
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded URLs and is flagged by ClamAV as Pdf.Phishing.Trojan. The ML classifier also strongly indicates maliciousness. The document body, though heavily obfuscated, appears to contain keywords related to reviews and potentially lures users to the external URL for malicious purposes. The presence of multiple external links and the link farm heuristic suggest a phishing or malware distribution attempt.

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://xezojetit.ru/wix?keyword=reverent+wedding+films+reviews PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460694/normal_5febb1f7cbc3b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387581/normal_5fffb5a8cb728.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451350/normal_6015f07af3944.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386828/normal_60032f839c384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485301/normal_600a25bc60557.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489412/normal_604e802522a86.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/jgjbgf7/voxiturenutegezog.pdfIn PDF document text
    • https://cdn.sqhk.co/jifibipex/ohcJiao/ice_quest_malvern.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458132/normal_5ff6ae41a36fc.pdfIn PDF document text
    • http://promoocaoameericanas.com/142977774114r6wa.pdfIn PDF document text
    • http://straponartist.com/metro_2035_pubg_mobile7m9tv.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/ieigiji/52252264657.pdfIn PDF document text
    • https://cdn.sqhk.co/soxesemu/bgiUWnz/stack_ball_blast_through_platforms_apk_download.pdfIn PDF document text
    • http://cashfree.store/soweto_gospel_choir_songs_fakaza7451f.pdfIn PDF document text
    • http://interbank.link/exponential_function_practice_problems_with_answerssk6na.pdfIn PDF document text
    • http://goodnatural.space/gogatoleduwizugo2r8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://82cb18f6-4a40-4824-ac11-10070f72ce02.filesusr.com/ugd/5aec95_a9f3953fadaf4644a724b920f5622090.pdf?index=trueIn PDF document text
    • https://e668d0bc-6b9c-4787-ac64-5363b724ef62.filesusr.com/ugd/6ec699_21478c37f2964ae9ab9f81ca00f31097.pdf?index=trueIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ddd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD3 5176 bytes
SHA-256: 64c51b261b2c62c3c219363114dd993e6252ee559b73c80a8c6bb780e050e334
font_01_sfnt_off0000ef7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF7F 10540 bytes
SHA-256: 4e2a5609df0841cffc1794502eb18937d2600f52fdcec469f0d15e821a514682

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