Malicious PDF — malware analysis report

Static analysis result for SHA-256 a64d1b4581500f20…

MALICIOUS

PDF

73.6 KB Created: 2020-12-22 17:40:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 96e1ee289b62221dd4f7ba053297354a SHA-1: 20d05558564cac80e6f4e67786939465864bf889 SHA-256: a64d1b4581500f20f2e7879d98321417e7f7271ebd415828c0d27afe36480bc8
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 a redirector link disguised as a review for 'Eclipse edge of light psvr review'. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URL leads to a known phishing domain, likely intended to steal user credentials or deliver further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafffe.ru/strik?utm_term=eclipse+edge+of+light+psvr+review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407804/normal_5f939c2def9e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428329/normal_5fae8d8d9a6a6.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
    • https://uploads.strikinglycdn.com/files/b7a2453e-f096-4a72-ba74-10baa832cd23/mizivijozotidekafusu.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/unit_12_thermochemistry_test_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19c5a9e2-c204-4d79-88f4-39825566730f/totijetononanize.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10b3f294-8ab7-45c5-8f96-65642a592124/32778862931.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/kuverapegilewaneze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57304cb1-db69-4902-8ad2-cdb86820a472/valence_electrons_and_ion_formation_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10520a76-70d1-4fa9-b591-91310a5544f9/tejebadevigixekibikirej.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/33713498357.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc556b8a3bf4b14abc694f3/t/5fce37dd8a55f2188ba2b83f/1607350238091/age_of_warring_empire_hack_v1._02.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/foldable_flight_arrowhead_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebbee314-2892-4d60-807c-84c99d46f080/gta_trabzon_city_indir.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c384116eb00e3c6d5904/t/5fc6e5dc1d106d256bb36e76/1606870494364/drag_racing_bike_edition_apk_mod_malaysia.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/bloomberg_terminal_guide.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 2

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_off0000d654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD654 5000 bytes
SHA-256: dbc16c6d4415a9ce1ec415956fcc9a4705ade26faee74db90e7ddb08042b5ad1
font_01_sfnt_off0000e783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE783 10488 bytes
SHA-256: 5f4bd0fe3e99f617b8791710329d648101658e1f5280553f9230af76059621c8
font_02_sfnt_off00010b74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B74 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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