Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f4c09401021c4c…

MALICIOUS

PDF

78.3 KB Created: 2021-02-27 18:42:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: ffc1a2689b9338554855ead657e97186 SHA-1: 92108b2fb9386a43c04cc12474b814276f520ca0 SHA-256: 26f4c09401021c4c3ea88eb5b701a562ebdafb8c737261dbde4431effbd807c1
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into clicking it by mimicking a search result. No scripts were extracted, but the presence of the malicious URL and the overall detection suggest a phishing attempt.

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://jottigo.ru/123?utm_term=what+does+red+warning+light+on+freezer+mean PDF link annotation
    • https://cdn.sqhk.co/mogizufofuj/C6jc7z9/arcade_hoops_wall_mounted_basketball_game.pdfIn PDF document text
    • https://cdn.sqhk.co/xanuramalu/CRAgeic/xetiroviruko.pdfIn PDF document text
    • http://cardioactiveuficiale.site/celestial_coordinate_systemowjvx.pdfIn PDF document text
    • http://olipaka.xyz/nomaridurozohnql.pdfIn PDF document text
    • http://samelike.site/lokuvaluvujulunad860g.pdfIn PDF document text
    • http://tewatag.medianewsonline.com/46271540952.pdfIn PDF document text
    • http://tufodudem.mypressonline.com/49415312675.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372682/normal_5fe781cd07f69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478398/normal_6004a137843aa.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://s3.amazonaws.com/sudevejerifu/56323221709.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/maravilloso_desastre_saga_cuantos_libros_son.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/bitlord_free_latest_version.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/stock_markets_open_on_weekends.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/animal_tissue_culture_applications.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/xiselabivuvawameviliwadi.pdfIn PDF document text
    • http://rosajeku.myartsonline.com/mefurak.pdfIn PDF document text
    • https://s3.amazonaws.com/memobofilenabon/internal_calibration_certificate_format.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E0 5264 bytes
SHA-256: 4096ba5bbc0888de19d31bde95e9c2c5abfd3a1ce9974968f884f932b847c1db
font_01_sfnt_off0000f8b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B4 10708 bytes
SHA-256: 8682c44cd71d5c04384c801614f7a59383e0c323c009d44c25a3bba8344ee138
font_02_sfnt_off00011d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D57 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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