Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2976119f76a8282…

MALICIOUS

PDF

73.9 KB Created: 2020-11-17 15:22:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: ad43f2bc631fa48e37da4a9cb85c6c64 SHA-1: 0bb1a5e555634a0ec6fb2d596b9ac71db2a9d684 SHA-256: f2976119f76a82825d41bcf40e76d7f6003ac526fad8092bfd0215467be9a69c
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'traffset.ru', which is likely used to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to 'Showbox android tv no mouse', suggesting a lure to trick users into clicking the malicious link.

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://traffset.ru/aws?utm_term=showbox+android+tv+no+mouse PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382621/normal_5fa3bb7453ae8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401982/normal_5fa10f8d37d9c.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/nefomojuwet/google_apps_script_spreadsheet_remove.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/delta_b112900_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a57b8e4f-a24a-4774-b6e0-cbfbbdd42d18/rezonizavotesaroboke.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/alter_ego_plus_1_cahier_d_activits.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/kafumebas.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/abnormal_uterine_bleeding_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/campbell_county_school_home_page.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48abf26b-f537-4c30-a23c-475cf41b68ab/calorimetria_exercicios_resolvidos.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/53618136354.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/bailey_and_love_s_short_practice_of_surgery_24th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cb38dc6-e067-4958-9fae-bbecbc8a3691/95128898820.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ba830b8-f571-4330-a88e-3e4833294611/bukkit_vs_spigot_vs_forge.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/sweetwater_county_school_district_2_supply_list.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/pajulo.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_off0000e3ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3FF 5496 bytes
SHA-256: 3ae130e59cef08c0515e243626f8f229c4319631db8060c9b5059aecd9c6c75c
font_01_sfnt_off0000f69c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF69C 10800 bytes
SHA-256: be1e280875b2a9abb9f0124b6fb81123bccb6bb30eb0208bc1fedf54a9a45f96

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