Malicious PDF — malware analysis report

Static analysis result for SHA-256 3284f20525a0deba…

MALICIOUS

PDF

70.2 KB Created: 2020-12-10 12:41:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: b52161f2cc40d687ed4bfccb16932e71 SHA-1: 20befd6b2b3fe0a5f5da209d47fa6c20a5a8182f SHA-256: 3284f20525a0deba2aaf6f5aba3c029ea2f743252d7d821fa0ce4a3143664a7d
96 Risk Score

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 0.9998

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://traffnew.ru/123?utm_term=uber+driver+contract+pdf PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rorives/gear_for_sports_apparel_catalog.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0efc3b8467722f1d478d1/t/5fc281cbe18c5c478e4cd1e9/1606582740698/43457792789.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/zudonigile.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/41100911198.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/recital_program.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1cbe78ef7301f8b171054/t/5fcac3665480b554f8a139c8/1607123819130/airplane_mode_movie_2019_trailer.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/5407669148.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/2016_chevy_cruze_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/guided_kayak_fishing_trips_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/37464342724.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2983b9955c744b5466208/t/5fcd5eb22fa8bc6bcdfb5f09/1607294643151/42248040462.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/instagram_story_template_photography.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/cinema_4d_animation_template.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/dnd_5e_peasant_railgun.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_off0000cd6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6D 5132 bytes
SHA-256: 4b438f10b89de55459bcb25b6003e282dfba646e1d4b77ecf799ce84775e738d
font_01_sfnt_off0000def2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF2 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000e77f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE77F 10624 bytes
SHA-256: 5d794b348d1e4febb696929664bc08a101d27396d201d609c9c6615ce796d39c

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