Malicious PDF — malware analysis report

Static analysis result for SHA-256 34feb47facf7b34a…

MALICIOUS

PDF

86.0 KB Created: 2020-12-22 16:07:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 710320b77ccd7a3891b23edaf6913920 SHA-1: 319214d4cbfe602bf6c39326ad82f67a8a08f2bc SHA-256: 34feb47facf7b34aa469e28516ec3ece8520c1ff7d8466fdd80584aea4fe3441
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URL suggest it's designed to redirect users to malicious infrastructure, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=how+to+triforce+on+facebook In PDF document text
    • https://kokejegifuro.weebly.com/uploads/1/3/4/4/134477846/b23a15ab757.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415530/normal_5fdd6a552683d.pdfIn PDF document text
    • https://kawewadibuporak.weebly.com/uploads/1/3/4/3/134371142/xasiboporabeno.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485165/normal_5fb8bce10a7eb.pdfIn PDF document text
    • https://razebefalokugex.weebly.com/uploads/1/3/4/8/134895215/b5b63013f9c.pdfIn PDF document text
    • http://turbolego.com/triforce.txtIn PDF document text
    • http://turbolego.com/ninja.txtIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/how_to_design_automated_guided_vehicle.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/stick_war_legacy_hacked_games.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/devi_kavacham_lyrics_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8066d0bb-5a22-446e-8682-dc240fed481e/marta_chavarri_fotos_interviu.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/56445410931.pdfIn PDF document text
    • https://s3.amazonaws.com/lumixi/le_cercle_de_la_forme_nation.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ceb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB5 2900 bytes
SHA-256: 10a07fc969e6c8cf41398fcfefa625e426b29a45b33f3716d0886db1405c0d2a
font_01_sfnt_off0000d8f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F8 4920 bytes
SHA-256: 97d4accf4ddd63b0ac973cfdf196486cd39fd652db176b00fb01110d7a0d83d0
font_02_sfnt_off0000e9d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D9 18176 bytes
SHA-256: 72f595695c21157112209f5ea3f53d68afddfff0c10d9a57d12beac31e12d68d
font_03_sfnt_off00012323.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12323 22328 bytes
SHA-256: aa4182217d7558e44bce5ca747be85dc8cf7687efa8006203814a24c392c165e

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