Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7d7505aea375e91…

MALICIOUS

PDF

80.2 KB Created: 2021-03-29 20:27:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 6c72846842e770069e7f345ac2921d52 SHA-1: ca1d15bacf604dbd0f68715de78b875c4d78258d SHA-256: b7d7505aea375e9105bfe190fdeb709ffec91da16c1511902b9e3828333e803f
136 Risk Score

Malware Insights

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

The PDF contains a lure related to the game Pixelmon, directing users to a URL that is flagged as a redirector for phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it's designed to lead users to malicious content, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://midufefew.ru/wix?keyword=how+do+you+get+a+mega+ring+in+pixelmon PDF link annotation
    • http://canonsburglake.com/bakanent687k.pdfIn PDF document text
    • http://nanamojuvimujo.medianewsonline.com/dujimazinawukugewoxozoge.pdfIn PDF document text
    • http://santand-es.com/chicken_soup_for_the_soul_dog_food_couponshrxjv.pdfIn PDF document text
    • http://sixesijilolun.mywebcommunity.org/mekonudelebotor.pdfIn PDF document text
    • http://rodina38.ru/power_electronics_by_rashid_3rd_edition_free_download4usen.pdfIn PDF document text
    • http://a-trvl.ru/84318942702u062x.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/eagles_wings_music_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a8c1647-7312-406c-9762-f1c07ae0e614/43968336175.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/free_backend_server_for_android_app.pdfIn PDF document text
    • http://satovimowenijor.myartsonline.com/xelanokunebepe.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/libro_de_derecho_romano_gumesindo_padilla.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/json_formatter_mac_os_x.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/84059054947.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/47074400475.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab4b5316-ea57-4ee1-a571-5033fab015a3/how_to_use_presto_pressure_canner_as_a_water_bath_canner.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e91230f-21ce-429e-9f4b-1d6afecbce6e/how_to_connect_iphone_to_ps3_remote_play.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/charlie_chaplin_2_bgm_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/fozomodivokoxuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33f37771-81e9-4560-bdaf-2489fca8c1d9/where_does_masonry_originate_from.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6292a6f2-4fe8-496e-89e3-c5eacdd47706/how_do_you_structure_a_poem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99ece0a1-d510-4b0b-8a0f-20d0d5e9140e/28800436497.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC9F 4112 bytes
SHA-256: cdb350daa2acbc5c99d3e17f5c5701449641e30b49b83c74f97c098798e58f97
font_01_sfnt_off0000eb57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB57 5324 bytes
SHA-256: 4683aabd6f6e36088f42b553c5b3b84eb5c14e63fb12268e8decf0a7185c2927
font_02_sfnt_off0000fd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6A 6148 bytes
SHA-256: 4910d0177da9f60ecc92c13a34fae8c5c38ffafb9e4e22a3c3fd987548b79157
font_03_sfnt_off00010d4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D4B 11436 bytes
SHA-256: 45afa7fce9bd9b9e4f08b9187db76aacc45a80c016d3e8bc0375dbda6e272bd4