Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc0b9f39533337e…

MALICIOUS

PDF

70.1 KB Created: 2020-12-21 15:11:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3259b7d041d1a38ff5c244ff4b63947 SHA-1: 7d5aa99737cb948571989754b84ee41754750894 SHA-256: 9cc0b9f39533337eef86675aca4d80c4e276b33781d5598a32514bf3e93afcc6
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that points to a suspicious domain, identified by ClamAV as a phishing trojan. The ML classifier also flagged the PDF as malicious with high confidence. The document body, though heavily obfuscated, contains text related to a game mod, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/strik?utm_term=final+fantasy+viii+remastered+background+mod
    • https://static.s123-cdn-static.com/uploads/4501789/normal_5fcb39ab266f8.pdf
    • https://static.s123-cdn-static.com/uploads/4403270/normal_5fdfa760a4c12.pdf
    • https://cdn-cms.f-static.net/uploads/4369646/normal_5f88b05b1d1c8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ec3cc9ed-c6ad-4fd4-953d-1c980c4ad5b2/52118282581.pdf
    • https://static1.squarespace.com/static/5fc7a864fa9ecc3978a0c3e8/t/5fc86664bbb7f45a92896b27/1606968934186/fefedoponukamomawexoped.pdf
    • https://static1.squarespace.com/static/5fc14b808139af037647f366/t/5fc3ebf31972c46e3c16ceed/1606675446927/77652128189.pdf
    • https://uploads.strikinglycdn.com/files/0bca7ee1-1530-450a-ac67-b5f154e84500/88867038918.pdf
    • https://static1.squarespace.com/static/5fc7963a161f8068becf528c/t/5fcfab820496d067bddda6b3/1607445379418/top_decks_yugioh_gx_duel_academy.pdf
    • https://uploads.strikinglycdn.com/files/3531bfc2-7135-4b7e-8849-9b61bb290f7a/warriors_shattered_sky_download.pdf
    • https://static1.squarespace.com/static/5fc29042d26ff1194f7e5c4d/t/5fc6fca909f4d56e8f7993db/1606876329962/alone_season_7_cast_winner.pdf
    • https://uploads.strikinglycdn.com/files/77e4fdc4-a237-498b-829a-9dd5bebe6758/3268792238.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2c6.bin
0282cc1860c55ae25d6d29177e482b77c70981a34b8e220584faab57d7b6433b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C6 5660 bytes
font_01_sfnt_off0000e60f.bin
3dcf40aed12a3e239528a28e9aa2992ba3f99ca27d705ff26b040571eae2e5ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE60F 11064 bytes

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