Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f49c9d7aae31337…

MALICIOUS

PDF

69.6 KB Created: 2021-03-02 08:56:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c85062c84f953d28668c272c0a5d5f48 SHA-1: c09c5890b2e2506e7866a0d8b50991ff3be2e135 SHA-256: 8f49c9d7aae31337d95fa7a18915202411d155be9066eb7ce8110f8cc3964621
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://dugedepap.ru/award?keyword=blade+and+soul+unreal+engine+4+date+europe PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4415309/normal_60003307a8eba.pdfIn PDF document text
    • https://cdn.sqhk.co/pimibopugugo/zgi2kjj/pin_circle_apk.pdfIn PDF document text
    • http://gilumesu.mypressonline.com/how_to_play_monopoly_with_houses.pdfIn PDF document text
    • http://vozaxakinexu.iblogger.org/71455964186.pdfIn PDF document text
    • https://cdn.sqhk.co/ramidazumiko/gcjbjjl/tijaralog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475216/normal_603965d369b52.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416919/normal_5fccb1671fc0b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476001/normal_5ffe614e3a511.pdfIn PDF document text
    • https://cdn.sqhk.co/zaviresodew/aC4jiij/33368701796.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383340/normal_5ffa5c269ba8b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491925/normal_60067221e58a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372696/normal_6038747235dce.pdfIn PDF document text
    • http://talemine.getenjoyment.net/is_there_a_replacement_remote_for_roku_streaming_stick.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366400/normal_5fc82d88c8bd4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408460/normal_602c80659ae0b.pdfIn PDF document text
    • https://cdn.sqhk.co/joxezexukub/o3thjjd/bivobisor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fetufebutegiv.rf.gd/data_structure_and_algorithm_file.pdfIn PDF document text
    • http://fugusun.epizy.com/12001090470.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_off0000c7ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7AE 5144 bytes
SHA-256: 22697b96b0385bb9d8fe31addb608894bc51ab8775a7bbaa47fb2773d895c9e2
font_01_sfnt_off0000d93a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD93A 9892 bytes
SHA-256: 0893441b35a48c4774c7b6282ef19b379d0e79c491ff74ed8de8409ede0ab8ec
font_02_sfnt_off0000fb0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB0A 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71