Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0592c3173dac7b5…

MALICIOUS

PDF

67.9 KB Created: 2021-01-11 11:13:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 4887ffbe27f8b724cf7d19d0bedf1445 SHA-1: df41713b60dfc826c32e417972db419387a01dc7 SHA-256: d0592c3173dac7b52bbfb9d9418aa6ff482931102f96ba32df7547a3a66f00f4
154 Risk Score

Malware Insights

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

The file is a PDF containing a link to a known malicious redirector, traffking.ru. The embedded content, though heavily obfuscated, suggests a lure related to a game ('Airport madness 2d'). The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery via the embedded URL.

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://traffking.ru/123?utm_term=airport+madness+2d In PDF document text
    • https://remewizefo.weebly.com/uploads/1/3/1/8/131856163/ledonokeberuso-kobifebonewen.pdfIn PDF document text
    • https://jikubefu.weebly.com/uploads/1/3/4/3/134318914/rizovobi.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxafopagad/KejbtfO/bimosuxadopewemisu.pdfIn PDF document text
    • https://cdn.sqhk.co/tosijoxopum/gefgejg/34706649141.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/hdhj2YU/xulelida.pdfIn PDF document text
    • https://cdn.sqhk.co/jofutagi/e9Ihgie/escape_the_mansion_online_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413846/normal_5fdff0de18ab0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386851/normal_5fe56d0813a72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474719/normal_5fbe2538908dd.pdfIn PDF document text
    • https://cdn.sqhk.co/xisiwuba/hgijNja/crash_cars_for_sale_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462727/normal_5fc29c55df7f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470552/normal_5fdd3e79857b5.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/tinajabizoreguf/lovizarawator.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_off0000c066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC066 4980 bytes
SHA-256: 4a36ac58410b5cfc4d57c572c30b9b26c1a3b1d82aef93a25da58ff4b23145f2
font_01_sfnt_off0000d125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD125 10392 bytes
SHA-256: 0c43cfd6dac36402af9f8020e9d657d279a4a98a0b36b5ce0673b3f790ee4bbd
font_02_sfnt_off0000f4b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B4 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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