Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ec7d46e02f2daf1…

MALICIOUS

PDF

72.3 KB Created: 2020-11-26 10:04:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 8a4e609a110bd9de23d5698cd5805b2e SHA-1: 189b58456beb00804c9ccf09d468a405846584ac SHA-256: 2ec7d46e02f2daf1cdea3872e5599f74ddcb1e26e58c86a5f666ccda5893387f
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffking.ru', which is associated with a 'dinosaur hunter game hacked' lure. This indicates an attempt to trick the user into visiting a malicious site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffking.ru/123?utm_term=dinosaur+hunter+game+hacked In 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://uploads.strikinglycdn.com/files/5b0634c8-56fd-48ae-bb34-996b67d3a547/dabifegogi.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/hydrating_jelly_sheet_mask.pdfIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/69529015715.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/cr2o3_ionic_compound_name.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/pandora_music_app_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae96cdeb-ef0f-41a6-bca0-2ddc2303ae31/arkham_origins_cheats.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/13106140268.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/7.4_human_genetics_and_pedigrees_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/fun_unblocked_games_coaster_racer_2.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/barium_swallow_radiology_report.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/77222320217.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/reading_and_writing_2_eso.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_off0000cea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA2 5268 bytes
SHA-256: 0e12c8078b4b9ec21874cdeb82bb07249ad195b24b75b23d4759db752783f8da
font_01_sfnt_off0000e05c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE05C 11056 bytes
SHA-256: 99cc034b0a0e736fb433d589d6ea9b4ba7972f8af6296b06e19270ff8ce005fc
font_02_sfnt_off00010601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10601 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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