Malicious PDF — malware analysis report

Static analysis result for SHA-256 e06012f8cb500402…

MALICIOUS

PDF

89.7 KB Created: 2021-03-22 02:54:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 5a62e4aaaf92c4cd351302748a7a969f SHA-1: 50507c48663a4f49d96e2183d001e3d2fc1343ac SHA-256: e06012f8cb500402254a7cfab228c60546d6ef83a9d6f4e3d2fb7420e32398cc
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://nipisod.ru/wix?keyword=wotlk+mage+leveling+guide+warmane PDF link annotation
    • http://fizebiredasibi.mypressonline.com/what_happened_to_mary_rowlandson.pdfIn PDF document text
    • http://wuwadipuzemorib.22web.org/numilipixexidiwe.pdfIn PDF document text
    • http://rivepozepuxar.mywebcommunity.org/clinical_cases_in_anesthesia.pdfIn PDF document text
    • https://cdn.sqhk.co/zirizowesaw/bgjgc6K/never_have_i_ever_cast_fabiola.pdfIn PDF document text
    • https://cdn.sqhk.co/letaziseb/HDgehhv/big_windows_curtains_ideas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468296/normal_603c39e06d5c4.pdfIn PDF document text
    • https://cdn.sqhk.co/gixedomawa/Sgc4jaQ/hatchimals_colleggtibles_cosmic_candy_multipack_with_4_hatchimals.pdfIn PDF document text
    • http://gevenukodujojov.getenjoyment.net/54979317163.pdfIn PDF document text
    • http://diluzadumavotux.getenjoyment.net/38384426558.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488102/normal_5fdac4128d2f4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494440/normal_5fcd0052cfbc2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409627/normal_60090c88907c1.pdfIn PDF document text
    • https://cdn.sqhk.co/pinofizulag/xLhiidw/camera_app_for_iphone_11_pro.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412378/normal_5fcda0b8e2fa1.pdfIn PDF document text
    • http://galosidijixiwu.mypressonline.com/centrelink_nominee_form.pdfIn PDF document text
    • http://fodagikegabafak.iblogger.org/niwapadoxekewewi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mojuwuf.epizy.com/difumupoxosaxow.pdfIn PDF document text
    • http://lusajafimaneru.myartsonline.com/medical_glossary.pdfIn PDF document text
    • http://dowomux.rf.gd/45370688721.pdfIn PDF document text
    • http://wukekikisowif.epizy.com/what_to_the_slave_is_the_fourth_of_july_literary_devices.pdfIn PDF document text
    • http://ripotuteruposa.rf.gd/yardman_riding_lawn_mower_parts_diagram.pdfIn PDF document text
    • http://zudegudaki.epizy.com/81058089578.pdfIn PDF document text
    • http://zobotipuzadevi.epizy.com/love_story_movies_2019_full_movies_tagalog.pdfIn PDF document text
    • http://keregimuw.onlinewebshop.net/18056594882.pdfIn PDF document text
    • http://rodedewezijore.atwebpages.com/39026261114.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_off00012005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12005 5196 bytes
SHA-256: 1d5afecd709bd926c790246aed60b010ba6e1e8e7dd79874c2ca3af6f93d2be4
font_01_sfnt_off000131b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131B2 11144 bytes
SHA-256: 6e941446ed8d07bb612c9605eb187388754a8d8056b145bc3345d1a227dfc426

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