Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ed494e8979c3fc…

MALICIOUS

PDF

66.6 KB Created: 2020-12-22 17:25:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 891ed608511899aed9cde9b4fee40f74 SHA-1: 1d1916ac2ae80106bc6f8fc5f17ba637f0a4c96e SHA-256: 32ed494e8979c3fc509358d38040361996460019c2fc3a848d32c764d7f30743
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'traffset.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to residential zones, possibly 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/123?utm_term=what+residential+zone+am+i+in PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/eenadu_telugu_daily_news_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/you_and_i_lyrics_one_direction_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/coming_out_on_top_alex_cg_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/digital_electronics_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/free_tower_defense_games_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/helmet_for_my_pillow.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/buffed_wow_classic_jger_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c91192c50b1a1e906058/t/5fc56b36f8cdb769c69a250e/1606773558694/88980686278.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/34287960128.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/2015_maserati_ghibli_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/batman_and_robin_logo_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/dallas_medical_examiner_death_records.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/16695633437.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eeeb6d99-07f5-4307-be5b-97a6be158272/hp_25es_monitor_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/dental_cementum.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_off0000caec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAEC 5128 bytes
SHA-256: 904279258563f839aae69a578cdde9bc60df5ffa4b049afee249c4e3ea6fe9f9
font_01_sfnt_off0000dc41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC41 9948 bytes
SHA-256: 79326fe25bf22cc9a492d14f97fd1d8c32af255aa6f349af524bff2e8db165e7

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