Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e96f0090f88184a…

MALICIOUS

PDF

81.5 KB Created: 2021-01-13 04:14:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 36104e4fcdae70f2e006f910262d8828 SHA-1: a9972ab1178efc8339e8738ce33267ae1454aa83 SHA-256: 0e96f0090f88184a7e65d94a324a299a6196efd550dfca76c94e39efcce472f1
154 Risk Score

Malware Insights

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

The PDF contains embedded URLs that point to a known malicious redirector, disguised as a link to game cheats. Machine learning and ClamAV heuristics strongly indicate malicious intent, classifying it as a phishing trojan. The primary attack vector is likely spearphishing, with the document serving as an attachment to lure victims.

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://ggtraff.ru/wb?keyword=transport%20tycoon%20deluxe%20cheats%20pc In PDF document text
    • https://site-1197825.mozfiles.com/files/1197825/67194032854.pdfIn PDF document text
    • https://site-1175656.mozfiles.com/files/1175656/fast_racing_3d_apk_home.pdfIn PDF document text
    • https://site-1197330.mozfiles.com/files/1197330/cnco_band_net_worth.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388293/normal_5fce77031905b.pdfIn PDF document text
    • https://cdn.sqhk.co/fipimomozuk/Jgdjdge/jawezonavegimo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481059/normal_5fd0a008bd4c0.pdfIn PDF document text
    • https://site-1182839.mozfiles.com/files/1182839/56419617531.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379974/normal_5fe23e0cca7a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466154/normal_5ffd7ca61acb2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/kasigegi.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/gisebaxepununutezilijol.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/adverbs_practice_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/ballast_in_railway_track.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_off0000ffaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFAF 5280 bytes
SHA-256: 49188912b8637f0ab85dabdc02b750725aa8f31fb913046f5f3efaa9dd99770b
font_01_sfnt_off000111a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111A2 11744 bytes
SHA-256: 86adc5849154718dbd096f792c25531c00b6fdeb75abff1eb6e2568bb6230a97

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