Malicious PDF — malware analysis report

Static analysis result for SHA-256 7608345742c1776a…

MALICIOUS

PDF

81.0 KB Created: 2021-04-06 00:02:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c494a1e3a2b39a9348959c6117c722a9 SHA-1: 3236a679b9614237b6f5bbd3554130be48d7bd9a SHA-256: 7608345742c1776a80e7cebdc4a6891f391b69defcf268e3acd6f217fa1e806f
126 Risk Score

Malware Insights

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

The PDF contains numerous external URIs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to 'Vedic astro numerology pdf'. The presence of multiple disposable domains and link farms indicates a phishing or malware distribution campaign.

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://fokemale.ru/123?utm_term=vedic+astro+numerology+pdf PDF link annotation
    • https://cdn.sqhk.co/muxigatatini/gjasYkK/mejunejanetita.pdfIn PDF document text
    • http://jesuter.22web.org/97086951869.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzaxepigi/VuDiegj/battlelands_royale_apk_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/ge5heyI/lipowizoxemo.pdfIn PDF document text
    • https://cdn.sqhk.co/jojojidatun/ge3ZhhU/71503694166.pdfIn PDF document text
    • http://fresh-ita.space/venevewijupanosazomo1nvh6.pdfIn PDF document text
    • http://viwavorikag.22web.org/pibuj.pdfIn PDF document text
    • https://cdn.sqhk.co/merisipugito/d0pjbrt/laruliwapagitepos.pdfIn PDF document text
    • http://idealslimitalia-official.site/82369898222mm5hb.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/76043939226.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sibazod.epizy.com/50162304335.pdfIn PDF document text
    • http://rabelinowizufe.myartsonline.com/93406797033.pdfIn PDF document text
    • http://tojuzogip.myartsonline.com/sindrome_de_asperger_test.pdfIn PDF document text
    • http://lelutipajeb.rf.gd/13679645606.pdfIn PDF document text
    • http://nepowatalol.epizy.com/korinewomiwegufarix.pdfIn PDF document text
    • http://penugifo.rf.gd/cementing_calculations.pdfIn PDF document text
    • http://pijipareti.epizy.com/faxavaferaxuperovotegula.pdfIn PDF document text
    • http://kepinud.rf.gd/60124202593.pdfIn PDF document text
    • http://tuminexozuvino.atwebpages.com/101_email_etiquette.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

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_off0000fe0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0A 5540 bytes
SHA-256: e95df60fc0073911d658ed8be2d7db6702736047da6891bf6d788c50afc790e0
font_01_sfnt_off000110de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110DE 11216 bytes
SHA-256: 535b8672a9906e0c7a488da8209a8ee6536c420b1e0954e2250291920135862e

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