Malicious PDF — malware analysis report

Static analysis result for SHA-256 e780da13154d0263…

MALICIOUS

PDF

77.1 KB Created: 2021-01-23 13:18:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 015c350e155d4cf70752d415b4fcf84a SHA-1: 8206b0efe7b911f7a3afc494f1cb47eb14698799 SHA-256: e780da13154d0263ffb9cb52cdd404a9beb389cad6236884912c3946d6ff92fa
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, masquerading as information about 'Super bowl squares 2020 rules'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/123?utm_term=super+bowl+squares+2020+rules PDF link annotation
    • https://site-1168415.mozfiles.com/files/1168415/super_mario_run_free_apple.pdfIn PDF document text
    • https://cdn.sqhk.co/mudaxomemut/d8jcgeW/super_run_adventure_world_1.pdfIn PDF document text
    • https://site-1173293.mozfiles.com/files/1173293/vetilidejidanejojagowazej.pdfIn PDF document text
    • https://cdn.sqhk.co/tikalamin/1hihhoE/earth_live_wallpaper.pdfIn PDF document text
    • https://cdn.sqhk.co/delojiwuguj/ibhbsij/monadenivowo.pdfIn PDF document text
    • https://cdn.sqhk.co/pelotuwew/fhfhgib/dinosaur_hunter_dino_city_2017_mod_apk.pdfIn PDF document text
    • http://nukuxarigikuxez.iblogger.org/lalaranuza.pdfIn PDF document text
    • https://cdn.sqhk.co/goberirud/mjciihg/ravuxerunogagavadokoteja.pdfIn PDF document text
    • https://site-1195328.mozfiles.com/files/1195328/easy_cake_icing_decorating_ideas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/bad_boy_lyrics_saaho_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/829944023.pdfIn PDF document text
    • http://fufapawaxuta.rf.gd/98882242260.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/juzupagexutadenekanijen.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/44408752690.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/wodinofab.pdfIn PDF document text
    • http://zarazemudaseri.epizy.com/immunization_exemption_form_ontario_canada.pdfIn PDF document text
    • http://fuvituze.epizy.com/538875845.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/brother_dcp_t310.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/saxusupinopivulijotax.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/indirect_object_pronouns_spanish_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/62626291198.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE276 5196 bytes
SHA-256: eabbd2e6f93f2c789b097d8dcfc12c85bab716f24e3b685a670ee1ce3b1ee38a
font_01_sfnt_off0000f437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF437 10596 bytes
SHA-256: 1a9eea95bdfa9b949e727361dabbf440d510d7d95a84198c84006069d5a8c961
font_02_sfnt_off0001188b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1188B 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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