Malicious PDF — malware analysis report

Static analysis result for SHA-256 a96d9ab25d028651…

MALICIOUS

PDF

84.4 KB Created: 2020-11-11 15:05:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 0c20401a885f09b91d647e4ae44c00bd SHA-1: eb64c2d5969aa4bcfca365e532d2b3517cd0df81 SHA-256: a96d9ab25d02865152fec3621334dd0df3d8fb376e774c52ab251eadb637ad00
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing lure, specifically using an image to redirect to a suspicious URL. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URL 'https://traffset.ru/aws?utm_term=the+walking+dead+comics+price+guide' is the primary indicator of compromise, likely leading to a phishing page or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffset.ru/aws?utm_term=the+walking+dead+comics+price+guide PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad94e223-8f2a-41dd-8b59-6c7119c08735/50782208455.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2358c4d-e9fe-47c9-99d4-97918f5f23c3/jasiwozamevimuwatepepetun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11f64223-05f1-4ee0-a2e1-2edc93d45793/dofemixupasapit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/083bd11d-08b8-4967-8e78-5590da129e3b/efkat_tepe_yukle.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/80688364660.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7486b20a-e67e-4c4b-be54-eb0063792d7e/sefebexufu.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/share_google_calendar_event_as_link.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/38401832271.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8aabaad-4c31-483d-929d-628c98e6796e/6187002300.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/21776854258.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/risk_management_steps.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/20234449963.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/free_games_to_download_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/firod.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.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10001 5592 bytes
SHA-256: 8d2f00357037b48f87f3a0f98fc65786100a28dd04098df0a1a4565f53c8a56f
font_01_sfnt_off000112ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112EC 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off00011e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E4F 11256 bytes
SHA-256: 9c896d39e9ebeeb2a56277885220944fb63725b962722e07a5de1a20304526e2

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