Malicious PDF — malware analysis report

Static analysis result for SHA-256 4628be462959e6c3…

MALICIOUS

PDF

90.2 KB Created: 2021-04-30 03:34:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 830449afb67d2124d0b8225f9bd56398 SHA-1: ede9524a265f202d72d6558650706707c3b35299 SHA-256: 4628be462959e6c39a3a62280f5cec892fab803729e2c29a474d4c86e8c66034
126 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious. The document body, though partially corrupted, contains text suggesting a lure for watching a movie online, which is a common phishing tactic. The presence of embedded URLs and the overall structure strongly indicate a phishing attempt designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://ponafet.ru/strik?utm_term=hush+full+movie+watch+online+in+hindi+dubbed PDF link annotation
    • https://cdn.sqhk.co/giwumazusew/ejb5JzX/rts_2_program_danas_naslovi.pdfIn PDF document text
    • https://cdn.sqhk.co/kixarozikej/cPuifhd/canon_i_runner_2530i_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489733/normal_5fdabfb2ae74d.pdfIn PDF document text
    • http://ruvenebigolusep.mywebcommunity.org/kasakuroxiju.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409628/normal_60011e3738381.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406820/normal_605cba563c453.pdfIn PDF document text
    • https://cdn.sqhk.co/rojozedofaf/dDiehcD/mogak.pdfIn PDF document text
    • http://volulolusawaz.mygamesonline.org/3397206899.pdfIn PDF document text
    • https://cdn.sqhk.co/wofazexej/YIgj24t/zekesofewaxeduda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456998/normal_603e0fe1bc332.pdfIn PDF document text
    • http://sunazeremitiwu.mypressonline.com/listado_de_capitales_del_mundo.pdfIn PDF document text
    • https://cdn.sqhk.co/nefakovuwot/ic5ijif/jurofepini.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368240/normal_5fc80a717f27d.pdfIn PDF document text
    • http://raguvigawak.mypressonline.com/29775352027.pdfIn PDF document text
    • https://cdn.sqhk.co/raxinosi/jfhbEft/munajifemazofir.pdfIn PDF document text
    • https://cdn.sqhk.co/luwesefizi/Dhiuvgf/jajibenodiwufizifeduvix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ludugatitabi.atwebpages.com/learning_russian_step_by_step.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/can_a_callus_have_a_core.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/attached_book_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/epson_l1800_datasheet.pdfIn PDF document text
    • http://pudolajuji.atwebpages.com/what_the_bible_says_about_angry_husbands.pdfIn PDF document text
    • http://vugugemo.atwebpages.com/51749666345.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/answers_to_difficult_behavioral_interview_questions.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_off0001244b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1244B 5416 bytes
SHA-256: 44707e48ca0e7e13410df0aceb3407f65699fa2106d73aed967b60cea4e554a6
font_01_sfnt_off000136a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136A4 10696 bytes
SHA-256: 3db01824cd42d35945845c511c126a7cc47014f7f9b960a2a0f384df8e7c0fb8

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