Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd086a441a3d1492…

MALICIOUS

PDF

83.2 KB Created: 2021-04-10 05:24:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 744ae67ad40f25a11a49e270e1b80568 SHA-1: 3444f30a0079ebcbb15ca18e4ee0d010b97a56f0 SHA-256: fd086a441a3d1492d15f66cfc6097eed05b0848ac5cd4828305839feae5a1942
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 high-confidence ML classifier and ClamAV, indicating malicious intent. The document contains numerous external URIs, with one prominent URL suggesting a lure related to 'big data analytics jobs in dubai'. The PDF's structure and the presence of embedded links point towards a phishing or scam attempt designed to redirect users to malicious websites.

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/strik?utm_term=big+data+analytics+jobs+in+dubai PDF link annotation
    • http://likedizar.medianewsonline.com/best_to_word_document_converter_free_download.pdfIn PDF document text
    • http://nulonelam.66ghz.com/back_bonding_inorganic_chemistry.pdfIn PDF document text
    • http://all-host.site/logo_quiz_world_answers_level_7wzgtc.pdfIn PDF document text
    • http://vnds-v.website/17505635631j13i2.pdfIn PDF document text
    • http://qwert-ita.fun/descargar_disco_de_los_tigres_del_nortexydc2.pdfIn PDF document text
    • http://fibisazorowax.mypressonline.com/alcatel_one_touch_pop_star_5070d_firmware.pdfIn PDF document text
    • http://ionatr.space/21601835327r9pzi.pdfIn PDF document text
    • http://azalea.store/12591997657mpbgb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://0ecef3a8-5193-4df1-8dcb-1b7dd0f2be2a.filesusr.com/ugd/e6092c_7ed3cf183dc44541a2d85d2eec0cccd0.pdf?index=trueIn PDF document text
    • https://fa202315-5cd5-4006-9a99-7c5d4406650e.filesusr.com/ugd/61804c_90cc2765dbda431d947463c03186c278.pdf?index=trueIn PDF document text
    • http://dixiriruturebul.rf.gd/nurenowonedevogozowesi.pdfIn PDF document text
    • https://39ad70c8-6a03-4de2-a89b-b0209cba5754.filesusr.com/ugd/d2759c_eea9519204694547ba2e395221f16eaf.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/nedojilivofegapupugetakor.pdfIn PDF document text
    • https://196cdf53-7a38-4f80-8f5e-3ad65c24f50e.filesusr.com/ugd/e5a593_2e751f1e2ff94f0c9cdb642a506ed187.pdf?index=trueIn PDF document text
    • https://ed21222e-fee3-4fab-8b52-e2ddb7bb35ab.filesusr.com/ugd/e73fea_08f861ca7c8347d7a27c40d16830681e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/widuxade/free_drum_books_download.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_off000105d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105D9 5376 bytes
SHA-256: 7c5d017e05bdf1858734576f618e6d3adfb7e476ba611d6235860a99361bed67
font_01_sfnt_off00011848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11848 11288 bytes
SHA-256: 0ce31c7e61306881cf12318cf3634c4e2cfe47ef4b20867326291b2ebaf63846

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