Malicious PDF — malware analysis report

Static analysis result for SHA-256 7448116ce5133c92…

MALICIOUS

PDF

68.8 KB Created: 2021-03-08 03:39:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: af5426288074ddf16e35a9fbe3c703fd SHA-1: 35b7b08ab0d0f7156e4f387fb8d2bd2f59bdc8d1 SHA-256: 7448116ce5133c9285bfcd1a2b87e628531fe2ee91ac06dbe2ccde62ac9966c5
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://kuzutuzo.ru/wix?keyword=emission+of+light+from+an+atom+occurs+when+an+electron PDF link annotation
    • https://larunigilusevim.weebly.com/uploads/1/3/5/3/135320243/malalevaz.pdfIn PDF document text
    • http://fanisore.sportsontheweb.net/age_of_empires_2_no_cd_patch.pdfIn PDF document text
    • https://tajuwelaf.weebly.com/uploads/1/3/1/0/131071184/tufam.pdfIn PDF document text
    • http://tofoxewesaxizuz.mywebcommunity.org/moto_g6_plus_pattern_unlock.pdfIn PDF document text
    • http://zutumufedige.getenjoyment.net/pance_prep_pearls_2nd_edition_ebook.pdfIn PDF document text
    • http://lulilafemavivog.mygamesonline.org/zexesitevujokivabote.pdfIn PDF document text
    • https://xikunozazoteta.weebly.com/uploads/1/3/1/4/131453294/lezadig_botogusex.pdfIn PDF document text
    • http://mopowataxix.medianewsonline.com/kuvejunututiregemofepinu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e0220c8c-c322-4c33-af83-7c5b0fe00b66.filesusr.com/ugd/a771bd_6d7dca3ded3b4fb684f6fbcbd1d561e8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/watch_anime_classic_app.pdfIn PDF document text
    • https://17c3d818-7f64-4152-976a-2fa997d7a7be.filesusr.com/ugd/e2c250_004baf8da2fe4504ad3ea02cb9021cbf.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/how_to_loosen_plantar_fascia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/990bfa60-7cf1-4244-a89c-cd30aeb6b178/fenigedudoxulabokubilifif.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/pepofev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90af2ca8-18c5-4461-a92d-89c3975bc90b/new_pinball_productions.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/business_case_template_excel_mckinsey.pdfIn PDF document text
    • https://19508648-7f28-415f-8121-b57715dc1465.filesusr.com/ugd/9734e7_a6c9ea1f5e4440e88bbc617680074e48.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kotidox/ligej.pdfIn PDF document text
    • http://wufagezigedo.onlinewebshop.net/zevulosaneneragilosur.pdfIn PDF document text
    • https://5090c2af-253d-40c3-bfb7-942fc6db26b0.filesusr.com/ugd/0511f5_6fe62eeec8ed4b528aa0f21437d708c6.pdf?index=trueIn PDF document text
    • http://zesafemumibow.myartsonline.com/42915431303.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_off0000d305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD305 5344 bytes
SHA-256: 2acc2e3156c6c849eb7a71e61ba9a2a791a756345719e103a6f93c6510c9429a
font_01_sfnt_off0000e516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE516 9600 bytes
SHA-256: 26ffc6583477b4898f9a10805940035c70684a98246fa3c4cbbdce795d6b17ac

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