Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e43094110e39e8e…

MALICIOUS

PDF

80.3 KB Created: 2021-05-01 07:46:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: c7610b1adfc7452c5460b307959df11a SHA-1: 3deeb0d56cb2e0b648ee623e16a6b8599123f439 SHA-256: 9e43094110e39e8e4a3d764cfab05787f39c3212b89b24919d55d3a98e9e8a25
186 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, characteristic of a link farm designed to redirect users to potentially harmful content. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic further support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/strik?utm_term=the+ancient+magus+bride+chise+pregnant+fanfiction PDF link annotation
    • https://cdn.sqhk.co/bedogipaxog/gh4idaY/zolotenubofi.pdfIn PDF document text
    • https://kufurana.weebly.com/uploads/1/3/1/4/131482954/fugurajisatuvo-zijibewodew.pdfIn PDF document text
    • https://kopezufotixese.weebly.com/uploads/1/3/1/1/131164020/veletejerugumefuror.pdfIn PDF document text
    • http://hugertely.xyz/povajazesixudanp3auw.pdfIn PDF document text
    • https://gulesome.weebly.com/uploads/1/3/4/4/134496781/rubinuferupijar.pdfIn PDF document text
    • http://www-sfr-fr-monespace.com/abc_news_sports_reporter_georgiea7lby.pdfIn PDF document text
    • https://nasoluludeg.weebly.com/uploads/1/3/4/4/134435301/e584eb.pdfIn PDF document text
    • http://cashbackk.site/tiwetozuriduxakudivavenamb3xbm.pdfIn PDF document text
    • https://cdn.sqhk.co/pivugisaxap/gcHfghG/vejirirexokobomur.pdfIn PDF document text
    • http://1fps.ru/joworoxikwfdv.pdfIn PDF document text
    • http://dvertsoff.ru/tecnicas_de_recoleccion_de_datos_segun_arias_2006wss48.pdfIn PDF document text
    • http://cleaner-inn.club/3d_video_editor9yi4c.pdfIn PDF document text
    • http://esportzmlevent.com/dezezem6gdq.pdfIn PDF document text
    • http://rfs.team/bivore8m29r.pdfIn PDF document text
    • https://sesirolomozanu.weebly.com/uploads/1/3/2/7/132741009/98911a.pdfIn PDF document text
    • http://tells.fun/hows_your_soul_study_guide3yoss.pdfIn PDF document text
    • https://tevupiju.weebly.com/uploads/1/3/4/8/134865653/wigopi.pdfIn PDF document text
    • http://gsmall.space/bhole_shankar_bhojpuri_film83nbe.pdfIn PDF document text
    • http://de-bewertung-id2842384.icu/30659226369afnzq.pdfIn PDF document text
    • https://cdn.sqhk.co/dafibuxoki/pnigYUP/pakemedodimutes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000fd5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5E 5624 bytes
SHA-256: 9789eadbb853210b2484369481b38aaa5c0e3cca8474da7d2396320c7255fcfd
font_01_sfnt_off00011049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11049 10228 bytes
SHA-256: 08a5b961f25b0cec5aa9a643df58b234bf2d7d7344443ff849bf65890d96f96c

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