Malicious PDF — malware analysis report

Static analysis result for SHA-256 a48fdb4074f7eb26…

MALICIOUS

PDF

79.5 KB Created: 2021-03-03 08:41:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: bc24b0fbe2ecdc059b5b3b65e9e88100 SHA-1: e40adc3a5d4598e2a16a503372914962f6ba81a7 SHA-256: a48fdb4074f7eb26728f18f372660a12c8ec870db30ed9f217d2f567e0687599
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to an Xbox 360 tray issue, which is a common social engineering tactic. It embeds a malicious URL, 'https://maypoin.ru/strik?utm_term=xbox+360+tray+is+stuck', likely intended to redirect the user to a phishing or malware download site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/strik?utm_term=xbox+360+tray+is+stuck PDF link annotation
    • http://sellforce.ru/histoire_christianisme_en_afriquefwaud.pdfIn PDF document text
    • http://gipogup.sportsontheweb.net/watch_a_discovery_of_witches_season_1_episode_2_full_episode.pdfIn PDF document text
    • http://suzupuwejal.mygamesonline.org/duniwoviduriwav.pdfIn PDF document text
    • http://sipataj.sportsontheweb.net/my_grandmothers_house_poet.pdfIn PDF document text
    • http://labincom-med.ru/sodastream_fizzi_one_touch_glass_bottleslnix6.pdfIn PDF document text
    • http://top-shop-store.website/win_7_ultimate_salam_indirjr0hl.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/nuxulikiwab/non_functional_requirements_gathering_template.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/charity_letterhead_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/appointment_letter_format_for_trainee_engineer.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/kotibulagadogi.pdfIn PDF document text
    • http://bepolujogox.atwebpages.com/kudew.pdfIn PDF document text
    • http://jajogagek.atwebpages.com/mercury_xr6_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/maksud_agama_islam.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/damibereso.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/monthly_household_budget_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/a_river_runs_through_it_book_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/pawilupeti.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/44786071716.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/74294263632.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/jiwipivodewexoxapalosadil.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_off0000ed42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED42 5232 bytes
SHA-256: b882701708960d424a32e4573c24df2ed2e9a4b4674ae26335ed6ea2472d4a65
font_01_sfnt_off0000ff1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF1B 10612 bytes
SHA-256: 7793cd5a912e862d1f9a30428877a29ef65a99d6b6d18f80a34ebdef1064ab0d
font_02_sfnt_off000122bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122BC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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