Malicious PDF — malware analysis report

Static analysis result for SHA-256 0420593debaadfc1…

MALICIOUS

PDF

72.4 KB Created: 2021-03-03 14:29:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e0a8a79cd2b553ac4a72c57fedf95bbc SHA-1: 2cc9596281cef9900f552a2e504dd70bb356f6f6 SHA-256: 0420593debaadfc1764690202a21d00b2c2cb62fc7e4377cb0e32ece3cd99cd9
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/award?keyword=grasslin+baxi+boiler+timer+instructions PDF link annotation
    • https://cdn.sqhk.co/wopiwozaso/jijajji/62713300767.pdfIn PDF document text
    • https://cdn.sqhk.co/daposofoxig/dTWqigM/amazon_prime_video_pin_ios.pdfIn PDF document text
    • https://ruxunomitebapat.weebly.com/uploads/1/3/1/6/131606858/panemugifa.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/ojh5icz/call_of_duty_world_war_2_war_maps.pdfIn PDF document text
    • http://siwupojotuj.getenjoyment.net/why_is_my_refrigerator_not_working_but_my_freezer_is.pdfIn PDF document text
    • https://cdn.sqhk.co/ponesigis/2gh1hfw/zombie_killer_road.pdfIn PDF document text
    • https://nobewiga.weebly.com/uploads/1/3/5/3/135315034/9558337.pdfIn PDF document text
    • https://pevusipifo.weebly.com/uploads/1/3/4/8/134863194/c19f4950f8eb.pdfIn PDF document text
    • http://peromopativej.mypressonline.com/yo_amo_a_paquita_gallego.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuruganota.epizy.com/nafabiwuwivujukajax.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/73759926745.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/weber_spirit_e-310_propane_tank_size.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/constitutional_amendments_11-_27.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/90208622370.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/47769458296.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/54596425794.pdfIn PDF document text
    • http://dapizodipe.myartsonline.com/pathfinder_player_companion_ranged_tactics_toolbox.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF8 5184 bytes
SHA-256: e3f9ff8b34f46d5a184c53ac9132fa866a7934838357afc1358f7f4f5637085e
font_01_sfnt_off0000f18c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF18C 10336 bytes
SHA-256: 0db13394705bef9a77056b011e66ef6af7da5818728ce8aa20cdc7f8778a563f

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