Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9755152cc322d1d…

MALICIOUS

PDF

72.0 KB Created: 2020-11-25 05:22:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: dd48ad2a4bd16ddad033227de02e66e0 SHA-1: 75ef6d9fc6f4a599c1bad6c1f6e37cdeb8e0aaef SHA-256: b9755152cc322d1d097582b681c3f54909c984438d681229caf93d8e36ac1642
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded URLs that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic and ClamAV detection. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, appears to contain text related to a national park, likely serving as a lure to encourage users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/123?utm_term=lake+clark+national+park+location In PDF document text
    • https://xawajedub.weebly.com/uploads/1/3/4/8/134886715/2795321.pdfIn PDF document text
    • https://zoradelageruwol.weebly.com/uploads/1/3/4/5/134591251/fowejejowuk_poxenusoroze_lawagoluveme_zolajotet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450427/normal_5fad89a9bc0dc.pdfIn PDF document text
    • https://jazexupojofon.weebly.com/uploads/1/3/1/4/131409098/5366276.pdfIn PDF document text
    • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/pexur_nanibalezit.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/acda21ec-4b82-4d4d-8ee3-ed34b8e14f47/the_smurfs_full_movie_download.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/bingo_print.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4918d286-438c-4c4e-847c-6c50c4385dbb/rufositaruxan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8747d85-94a4-4281-848a-593a979489e2/buy_cigarettes_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6eeace53-c94d-4086-a62a-eee1cefcf75d/19562215463.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e682652a-7d70-4a20-bcaf-2dd712c6cb12/soul_eater_gift_set.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1BC 4544 bytes
SHA-256: 08b43f80fce70359e0627dbd72d005e1a058cdea868da363c6e866cd1ea9e844
font_01_sfnt_off0000e12c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE12C 10504 bytes
SHA-256: bc6cd2af4def71ea7186ec518f2e09e8fc0c44bd292ef91b9593d529f89e9ea1
font_02_sfnt_off0001053b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1053B 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.