Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0ff24afacda81f8…

MALICIOUS

PDF

71.4 KB Created: 2021-02-13 17:44:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 564284b0f78fe5c0b60cc231a46905a0 SHA-1: 9104340d5699985e0344cf32b8c7687a8dd62130 SHA-256: b0ff24afacda81f8d91e89f8116c143e8a2c1871058f1b9f6960f51d2ceb0c3a
126 Risk Score

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://jottigo.ru/wix?keyword=the+hiding+place+summary+chapter+7 PDF link annotation
    • https://tipuvativojodud.weebly.com/uploads/1/3/4/7/134754547/4003220.pdfIn PDF document text
    • https://vigekajabaka.weebly.com/uploads/1/3/4/7/134708837/2487141.pdfIn PDF document text
    • https://nufawufaza.weebly.com/uploads/1/3/0/7/130740177/sakipexemapulot_bebipafakujugi_sasopiwedixin_mimaredol.pdfIn PDF document text
    • https://wawodupalise.weebly.com/uploads/1/3/4/6/134621762/pupirur.pdfIn PDF document text
    • https://vobuzotoxat.weebly.com/uploads/1/3/4/7/134705481/vupetujirafudev.pdfIn PDF document text
    • https://figagukedeliv.weebly.com/uploads/1/3/4/0/134040575/1397030.pdfIn PDF document text
    • https://pegigisujojefuf.weebly.com/uploads/1/3/1/4/131413718/sowalilorubi_kudidi_vutabijire.pdfIn PDF document text
    • https://sikenobavusemel.weebly.com/uploads/1/3/2/6/132682861/715bb48.pdfIn PDF document text
    • https://rurajutudap.weebly.com/uploads/1/3/1/4/131437622/2434c6176ca69b.pdfIn PDF document text
    • http://medgaj.com/space_simulator_game_download99z36.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/runuzitexokol/76179088537.pdfIn PDF document text
    • http://jisowepijoloj.epizy.com/42296492535.pdfIn PDF document text
    • http://jafexobaxe.epizy.com/dress_code_smart_casual_semi-_formal.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/free_bootstrap_html5_templates.pdfIn PDF document text
    • http://kaderuzaxaje.rf.gd/gift_bags_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/paradise_lost_short_summary.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_off0000db17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB17 5620 bytes
SHA-256: 0d46340db76ba5da8efca585971852e8b668b39500e5e4c8bb05594f7a446b1f
font_01_sfnt_off0000ee15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE15 10020 bytes
SHA-256: 137c2162877dbdbd9bda0afa97949d7e8b43d3ebc3d245c069b7df42a0659db8