Malicious PDF — malware analysis report

Static analysis result for SHA-256 002b14346c49f28a…

MALICIOUS

PDF

78.4 KB Created: 2021-04-06 17:17:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 0e2b6ee195d5783b66016a3495844cd5 SHA-1: 557b2bf57d3ebb2f635cc2f07cc7abb58677032c SHA-256: 002b14346c49f28ae318a3140e5cbdf37a881aec80bcce2438656dcf1321b4e6
126 Risk Score

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 numerous embedded URLs, many pointing to disposable domains, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • 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 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=everstart+maxx+battery+charger+reviews PDF link annotation
    • http://reduslim-sito.site/bts_significado_de_nombre_quel09rn.pdfIn PDF document text
    • https://gafewifem.weebly.com/uploads/1/3/1/3/131379815/1212221.pdfIn PDF document text
    • http://najetaxu.mygamesonline.org/783422759.pdfIn PDF document text
    • http://zaxiluxedexu.getenjoyment.net/biodata_format_for_job.pdfIn PDF document text
    • http://selozufuwadapuw.66ghz.com/sipuga.pdfIn PDF document text
    • https://molobaguzali.weebly.com/uploads/1/3/0/7/130739923/7229604.pdfIn PDF document text
    • http://muzhskoizhurnal.ru/a_que_edad_se_puede_empezar_a_tomar_el_colageno_hidrolizadonim91.pdfIn PDF document text
    • http://thedopemarketing.com/49396335692fe37z.pdfIn PDF document text
    • http://wogavuxemadirof.iblogger.org/writing_academic_english_pearson.pdfIn PDF document text
    • http://jagiliwut.22web.org/american_gods_season_2_discussion_reddit.pdfIn PDF document text
    • https://xidazujagavoza.weebly.com/uploads/1/3/1/4/131453269/pepek_rizeraxaxefej.pdfIn PDF document text
    • https://doxuvufunufake.weebly.com/uploads/1/3/0/8/130874670/ab37b0b.pdfIn PDF document text
    • https://wufunuxiropid.weebly.com/uploads/1/3/2/7/132712508/4534464.pdfIn PDF document text
    • http://bestplacefor.rest/58864916503kuk2u.pdfIn PDF document text
    • http://prod-fruit.space/18399004136zcbpc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0bce81f-0a42-449f-ad6c-f6bc04260028/21197809590.pdfIn PDF document text
    • http://weforonezanofo.epizy.com/invertebrate_zoology_books.pdfIn PDF document text
    • http://vilolosukip.rf.gd/architectural_drafting_and_design_7th_edition_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/503c9f58-ab5f-45cd-a200-3f4611d2f6ec/33285307824.pdfIn PDF document text
    • http://pivimufe.atwebpages.com/91987255358.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e09de4fc-697f-446a-8181-cbaf5615abca/ledunur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb77f91e-683a-43ba-b608-90765f7588ba/how_to_clean_a_taurus_millennium_9mm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc4e831a-21ca-4287-939d-14beb403f1e4/19835592552.pdfIn PDF document text
    • http://lubagolole.rf.gd/samsung_company_profile_2020.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_off0000f54b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF54B 5600 bytes
SHA-256: 59db77a4428747a9bb0cc04167d23b029f22aa6a38239d53a737784087ec3f07
font_01_sfnt_off0001084d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1084D 10500 bytes
SHA-256: d5fe506a8b77dccceab518d065cf5ef9cc3b286c3142f2460fb64ef4a6b51c91

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