Malicious PDF — malware analysis report

Static analysis result for SHA-256 1035df1520f67b05…

MALICIOUS

PDF

78.6 KB Created: 2020-12-27 09:16:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3adc51b5d5aa2faea6d4a9f31c8315bd SHA-1: 6bd2d2a4fb8b3f4e6253b8c1658fec2aeed54491 SHA-256: 1035df1520f67b05288f6f807b7b2508e829650b751b173a48c6e81239aff4c2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, specifically 'https://traffset.ru/strik?utm_term=sport+card+store+near+me'. The document body, though heavily obfuscated, contains text related to a "sport card store near me" and the wkhtmltopdf application, suggesting a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffset.ru/strik?utm_term=sport+card+store+near+me PDF link annotation
    • https://cdn.sqhk.co/samumosoxivi/ohcz1LP/piggy_book_2_chapter_4_predictions.pdfIn PDF document text
    • https://cdn.sqhk.co/vixonafom/jafijMj/hamster_bin_cages_diy.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzezufe/hfsSg5F/95983853738.pdfIn PDF document text
    • https://cdn.sqhk.co/desiruzag/nhiaShh/om_nom_run_mod_apk_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383449/normal_5fadebb44f787.pdfIn PDF document text
    • https://cdn.sqhk.co/zupuguvawaj/biihcCV/maps_navigate_and_explore_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuzedu/f63Xjhh/silavijaledefirabaxug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482215/normal_5fe71652c76ad.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/92f8b595-f90c-4ace-9304-86b565bf045d/minecraft_pixel_painters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/805acf74-55d3-4405-aafc-b7c392e8a3fa/82979048069.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/delicious_emily_s_road_trip_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/edital_prf_administrativo_2014.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/83836992411.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/fujepogotobinelewu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e617138-0591-495d-8707-c09d0ae3d103/suburelasixekozirunaf.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_off0000e96e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE96E 5032 bytes
SHA-256: 8702c2ee087e7db05c720f4d9ad313130a18cad93c28114f0e4ac2bffab7d20d
font_01_sfnt_off0000fa54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA54 10720 bytes
SHA-256: f2682d59fa89fd4e5a00ff493c0aaada13e42fb77b20ec23ebf4f458aaca6ed6
font_02_sfnt_off00011ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EF6 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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