Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c9c9a19ea4d5633…

MALICIOUS

PDF

75.3 KB Created: 2021-03-11 18:18:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 48b2c688b0e73fb5788b8ba54a5dba33 SHA-1: 74dee62f95fff945a63d23c91722fe4dca29d8bb SHA-256: 9c9c9a19ea4d5633e690de188ba0ad2af1d285594506683fcd8c627958a2d5bc
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a machine learning model and ClamAV, indicating malicious content. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm designed to obscure the ultimate destination. The presence of 'utm_term=bee+movie+hack+apk' in one URL indicates a lure for potentially unwanted software or malware. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect users to malicious sites, likely for phishing or malware distribution.

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://xajibur.ru/123?utm_term=bee+movie+hack+apk PDF link annotation
    • http://tonedomopoja.scienceontheweb.net/baby_bjorn_bouncer_weight_settings.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/transcription__translation_summary_worksheet_answers.pdfIn PDF document text
    • http://wejesigozolireb.getenjoyment.net/57707022679.pdfIn PDF document text
    • http://pelinebaj.mypressonline.com/five_nights_at_freddys_game_player.pdfIn PDF document text
    • http://thehensleys.org/the_devops_handbook_audiobookbsf9j.pdfIn PDF document text
    • http://nijepatexosanus.medianewsonline.com/temario_ser_bachiller_2020.pdfIn PDF document text
    • http://mokemowowove.mygamesonline.org/tupepowejib.pdfIn PDF document text
    • http://mafaregasinuviv.22web.org/44722059550.pdfIn PDF document text
    • http://zoziwasikow.22web.org/neck_exercises_arthritis_uk.pdfIn PDF document text
    • http://xavelodezazil.iblogger.org/green_accounting_definition.pdfIn PDF document text
    • http://insta-sale.site/18273603455s56xk.pdfIn PDF document text
    • http://najaruwa.iblogger.org/faziriwel.pdfIn PDF document text
    • http://fagumawegoleleb.mypressonline.com/kakogapavagoniwolebunanen.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/ttulos_de_crdito_livro.pdfIn PDF document text
    • https://s3.amazonaws.com/bomupi/dikaxa.pdfIn PDF document text
    • http://dokufexazag.epizy.com/71889842331.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_off0000e774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE774 5040 bytes
SHA-256: cb0f33886097c7c669dd7caef2365a3f9535379e86fe79d8264dbbd78d6114ee
font_01_sfnt_off0000f87f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF87F 12160 bytes
SHA-256: addf66b74c196d2a91e33f3694554b14064fa89a62080497fd191a0764d72b14

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