Malicious PDF — malware analysis report

Static analysis result for SHA-256 8293235cbd40abc9…

MALICIOUS

PDF

72.9 KB Created: 2021-02-27 13:06:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: eb42c83dc0d20ceae396144d822d816f SHA-1: 749a215bdd2e3f22b91662cba3aef098fcc58fe7 SHA-256: 8293235cbd40abc902f7c0937c1ba56e8247b798021e769baaed63eca0299d93
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware download site. The document body, though heavily obfuscated, contains keywords related to 'Skyrim' and 'quest books', suggesting a lure to entice users to click the malicious link.

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://xezojetit.ru/award?keyword=skyrim+list+of+quest+books PDF link annotation
    • http://idealica-official-it.website/44365794960yf8pu.pdfIn PDF document text
    • http://edayafar.xyz/bandslam_full_movie_hds9go0.pdfIn PDF document text
    • https://cdn.sqhk.co/teketerep/ibibpRl/real_money_casino_slots_app.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/dyCqJxP/siwasitobomo.pdfIn PDF document text
    • http://9gusevshop.space/sujazogunaxegalosu6y7dv.pdfIn PDF document text
    • http://trokot-tonirovka.online/708691692117qrmo.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/ronenitevodo/80534702753.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/cowin_e7_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/wasegibumumenuwosupiraj.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/83595695551.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/checkpoint_endpoint_security_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/72549296495.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/meme_generator_for_android_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/blundstone_shoe_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/nature_letter_template_latex.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/56209218912.pdfIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/santa_cruz_hightower_lt_chain_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/60362126566.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_off0000e11c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11C 5236 bytes
SHA-256: 7163d32b9d4d75fd2c656f8131eb46d1ee0003fca4dbcf1d68a5daf119178638
font_01_sfnt_off0000f2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EB 10476 bytes
SHA-256: a6b80c2259bb4d0cbb5c028f3833a4bf3926181bc7a646ef31ca25b3cd1ab045

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