Malicious PDF — malware analysis report

Static analysis result for SHA-256 255afdcef0d3805a…

MALICIOUS

PDF

74.2 KB Created: 2021-03-06 20:55:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: aa5b9aa260c22b3400e517fef0414dc9 SHA-1: 100effa45f3ec1223cdca671381a40e942c4462b SHA-256: 255afdcef0d3805a2790a4a80b717cc6d3d599959730164174a266acb8dc73f8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/wix?keyword=heroes+charge+raid+guide PDF link annotation
    • https://cdn.sqhk.co/tiwopaperuv/mfidha1/crash_landing_3d_tips.pdfIn PDF document text
    • https://cdn.sqhk.co/foropogajag/chcTahd/tagofeneboxipejasonosi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375504/normal_603565133ac7e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403422/normal_600360b776fed.pdfIn PDF document text
    • https://cdn.sqhk.co/zebenane/gBxgdjg/86609366187.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408873/normal_60053b92360da.pdfIn PDF document text
    • http://kuxogajow.iblogger.org/allotment_order_2018.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/sukedil/wondershare_video_converter_ultimate_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/69103607783.pdfIn PDF document text
    • http://nosatezugizixi.epizy.com/74780162567.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8497462-43da-4659-ba97-12e8106054c1/naruto_uzumaki_databook_4_stats.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2cf533f-e648-4132-b5ea-11decb1d3099/yajurveda_sandhyavandanam_in_telugu_mp3_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/94720581364.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/mit_east_campus_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a255fd77-7907-4803-bbf7-cd0576e73ddb/volume_of_composite_rectangular_prism_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/nalelupegi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07dfd855-7e97-4ff1-97ad-90a4f6b1038b/glencoe_physical_science_textbook_9th_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbd10fe3-a6f9-41bc-af31-9cb2e6fe1426/lewozenubofivapuz.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/56078591730.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/biology_chapter_18_classification_worksheet_answers.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e66b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66B 5128 bytes
SHA-256: 5899ea6364b02b6e3970abd550b8284846f3e2306e57d7c589ebcbebe6220a52
font_01_sfnt_off0000f7d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D4 10480 bytes
SHA-256: ec9ce7562a9e816683828b81cf535c4213fb53c3ea5722e4b1f819e322b8275e

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