Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3c43d7d24f49129…

MALICIOUS

PDF

70.9 KB Created: 2020-12-28 11:08:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: c7cf46ac7c4b548120eb62ba0ef4c807 SHA-1: 9554dc1fd1b75592ac3abe30da183f64995b062c SHA-256: c3c43d7d24f49129846179d90f1f5ccdf15829c090852198797381fdb4800915
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a suspicious domain, likely to facilitate the download of a malicious payload. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, contains text related to a 'coconut oil secret free pdf', suggesting a lure to entice users to download the file.

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
  • 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://trafftec.ru/123?utm_term=the+coconut+oil+secret+free+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4470226/normal_5fe507b767a6c.pdfIn PDF document text
    • https://cdn.sqhk.co/doxutijewu/jiIu5ii/dapenejom.pdfIn PDF document text
    • https://cdn.sqhk.co/norifasil/fZjbVjh/word_blitz_cheat_online.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ed0cbb8-fa5c-4d79-9140-7e5313376eb7/nextel_phones_wiki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0e19b26-eefc-4e9f-b0e8-b15e86051b74/marav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e94dbcb-defb-4938-966d-b04cad12e448/user_manual_for_cuisinart_ice_cream_maker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/644c8675-584d-4f27-ab4a-d0bf1a71bc02/kindle_fire_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/440989ed-a997-49aa-9a9e-c0f9a69d7d0e/53275794678.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8b1fe38-448e-41ab-9873-1649fa3fb707/dxdiag_report_command_line.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c55ff614-b928-4b5f-a8b7-5dae57ac5b06/minecraft_pc_full_version_free_offline.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/557c48d6-029d-46eb-a6bc-20fc09ac0ea5/particle_in_a_box_problems.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_off0000da9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA9E 4984 bytes
SHA-256: 957ebf886e5b43324edfebb61ff65cde6e834b33d5e0bcbdf1491d9f358ddddd
font_01_sfnt_off0000eb8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8F 10176 bytes
SHA-256: 4ad7c83d1552b67a6dcaba2b6cd2effe1bc3519c8189b68ad0ce480d45bf9240