Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b04e2d22eb25fdc…

MALICIOUS

PDF

76.6 KB Created: 2021-01-04 14:27:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 589fcf9562346ccbb5644f96e7ef01de SHA-1: f0e7baf6735bd1cefcf45e2513cbc0686919abfb SHA-256: 1b04e2d22eb25fdc740a810068a8fc2331cbf6c5b0684a6f86466ad894161987
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, which is a common tactic for phishing and malware distribution. The document body, though heavily obfuscated, contains text that appears to be a lure for downloading an application. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.

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://traffine.ru/123?utm_term=download+camera+360+apk4fun In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388285/normal_5fd7dfa9ccf77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390373/normal_5f970dd93bb61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413013/normal_5fc85aa8bc1b3.pdfIn PDF document text
    • https://cdn.sqhk.co/tukawezezo/jjijgig/funodewupamuniweziza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460690/normal_5fb7affd56917.pdfIn PDF document text
    • https://cdn.sqhk.co/lanamixese/a9jhbih/xepixatumajukusuzonisuva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368770/normal_5f9609657888b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384307/normal_5fbf5512c843f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e46af95-3138-4efa-a08e-9f9941136c6d/51218464591.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/frp_bypass_apk_samsung.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF27 5828 bytes
SHA-256: 40c9f3efa30f8ba58a1d5a341f0d885bc978f01bb5e26e48f08b521d15d71dc0
font_01_sfnt_off0000e30a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE30A 14644 bytes
SHA-256: 78cb02fefc6c855215ce6b218ff09ad204ed4514e86014469f5c2bf8a28aefc0
font_02_sfnt_off0001110d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1110D 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073

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