Malicious PDF — malware analysis report

Static analysis result for SHA-256 accf5502a2502126…

MALICIOUS

PDF

73.4 KB Created: 2021-03-03 01:57:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ddfa3e128f1246811efe39ffa95f7e4f SHA-1: d57bdd2d6bae542b83f2057dc23c8c0bd3b4cca6 SHA-256: accf5502a25021269b7b856b8580674e1b0bc43bce3964a2cea969d01750ea59
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/aws?utm_term=courses+needed+to+become+an+operations+research+analyst PDF link annotation
    • http://gojawufeki.getenjoyment.net/how_do_i_change_the_battery_in_my_armitron_pro_sport_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/ajejjuN/country_music_artists_male_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470389/normal_6032a7ee46834.pdfIn PDF document text
    • http://zipubezexupoka.mywebcommunity.org/dejumawajijeno.pdfIn PDF document text
    • http://lnstagramsupportinfo.com/borewakobasowelemerinus9u04c.pdfIn PDF document text
    • https://todonuratalojin.weebly.com/uploads/1/3/4/6/134605818/66e97a87213877.pdfIn PDF document text
    • http://mowefopovog.mywebcommunity.org/wewiwagowotokerujipit.pdfIn PDF document text
    • https://cdn.sqhk.co/faxenukev/ghgSibN/monkey_racing_mod_download.pdfIn PDF document text
    • https://doleroxewaforud.weebly.com/uploads/1/3/4/3/134322791/dekilazalugopi_mijifalusejun_nasudedofof.pdfIn PDF document text
    • http://moxegelubopidi.sportsontheweb.net/letter_of_intent_for_turkey_scholarship_sample.pdfIn PDF document text
    • http://kojazunupetip.mygamesonline.org/sesifojogilu.pdfIn PDF document text
    • https://cdn.sqhk.co/gijesali/dJytWjj/motofedowanivu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464082/normal_601240b11675f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gezixus.myartsonline.com/3d_interior_design_software_for_mac.pdfIn PDF document text
    • http://nununad.myartsonline.com/how_to_use_turtle_beach_elite_800_on_xbox_one.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_off0000e127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE127 5460 bytes
SHA-256: 4143d7b79220d43b7f14c0286444fc09725f4e5df91793b077cbe7f94acb1f1a
font_01_sfnt_off0000f38a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF38A 10840 bytes
SHA-256: 0b6261b654e946a1da6a1938bae5612942394979876d0a84a8ab05990c46b989