Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9bb911c6b1b445…

MALICIOUS

PDF

79.5 KB Created: 2020-12-29 17:06:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ca4e259fae92cef6cd59e5118cc735a8 SHA-1: 63ecf467e2bfb2dcfac8f03579f0c3fdb5e2ebe1 SHA-256: ae9bb911c6b1b4450f94a085560b160cec566691ec545a4954acb99f47bf3a4d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'trafffe.ru', which is likely used for phishing or to download a secondary payload. The document body, though heavily obfuscated, suggests a lure related to 'Naruto jutsu hand signs tutorial'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or malware distribution attempt.

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://trafffe.ru/123?utm_term=naruto+jutsu+hand+signs+tutorial PDF link annotation
    • https://cdn.sqhk.co/ditetona/dOiiTWB/tow_truck_icon_png.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369771/normal_5fd9b274bb014.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5f86f8be01527.pdfIn PDF document text
    • https://cdn.sqhk.co/zenetofuma/sheicjg/treasure_hunt_online_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447658/normal_5faa575b97a8e.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/njVgdhb/96128809280.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/eEgiRie/59105747719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418970/normal_5faef846e6e94.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5befc236-18f8-4b22-939d-eb6f080b7d24/83239874588.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8e08535-2a3b-4642-8b87-8bd8e1204ceb/realm_of_gods_team_legendary_goku_event.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/99295670700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c92fc4d-d122-4340-b13b-95093beab4f9/78092276757.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9feb219b-d95a-4d5f-914a-22ad2b0ecdbb/pulsar_music_player_pro_apk_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/47965233857.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_off0000e18c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE18C 6024 bytes
SHA-256: 3e3d56a90a9603f5b20032c2949e97eddc9e969b3fe9dea1184520d3726701d8
font_01_sfnt_off0000f630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF630 5132 bytes
SHA-256: c6f2318f8690424298c2f138ea579a6801c7e6293912bca19966c9e415ad6178
font_02_sfnt_off000107a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A8 12288 bytes
SHA-256: cc47317973b6f98f9a9222cdc3135b5024705041fb1a44d73b377505e9bf646d

Open this report in the interactive analyzer, or submit your own file for analysis.