Malicious PDF — malware analysis report

Static analysis result for SHA-256 37b7607f46eae12f…

MALICIOUS

PDF

67.1 KB Created: 2020-11-10 20:29:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cea620bee9d6cc52d348e605b80676c SHA-1: 7cce9538f5f1700be1d6552929710475a40421ff SHA-256: 37b7607f46eae12f44de2ca6fd1dc89649e72846ca1bfa85e2d37e495906c2cb
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The document body, though heavily obfuscated, appears to contain references to the URL's keyword, suggesting a targeted lure.

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://traffnew.ru/123?keyword=la+joya+independent+school+district+schools
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/82b24736-4a05-4a05-8f1e-24ef07353591/apk_game_hacks.pdf
    • https://s3.amazonaws.com/tetazino/68183038280.pdf
    • https://s3.amazonaws.com/vutame/towufanoke.pdf
    • https://s3.amazonaws.com/woxojuxafopuv/wabimubunuma.pdf
    • https://uploads.strikinglycdn.com/files/952b9755-e332-41b0-9e03-72b485a6c36d/77181843649.pdf
    • https://uploads.strikinglycdn.com/files/d321c78d-37a0-4045-96f9-949663631127/22359078050.pdf
    • https://uploads.strikinglycdn.com/files/6d44485e-be85-44fb-ad5c-470616506f9f/bogliolo_patologia_geral_8_edio.pdf
    • https://uploads.strikinglycdn.com/files/465c44cb-d558-41c9-9fa8-c024af74c4b1/mirixuludilib.pdf
    • https://uploads.strikinglycdn.com/files/642f3a99-4fe2-4c8e-97cc-68c92d1ddf5c/j_shoes_men_s_fashion_sneaker.pdf
    • https://uploads.strikinglycdn.com/files/d196c3b3-32b2-4fa7-ae46-8d75382e368d/33244289370.pdf
    • https://s3.amazonaws.com/felasorarabipis/litiguvemipepegopa.pdf
    • https://uploads.strikinglycdn.com/files/a523fa57-2fc6-4c40-85f6-7b3265662952/jigefomorutonasetar.pdf
    • https://s3.amazonaws.com/tuzamada/negamopupijatebe.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca3a.bin
84d40d51de92eb5d643f4acf6fa9d6451ad78e47e93a42d835fe52a3f1fd8ead		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA3A 5280 bytes
font_01_sfnt_off0000dc3a.bin
54c56ddb7a1c35db8d706ce5ef46193455cf5b59e7c9ac9f63415e8fb30a168e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC3A 10244 bytes

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