Malicious PDF — malware analysis report

Static analysis result for SHA-256 3070378d46afadb5…

MALICIOUS

PDF

80.6 KB Created: 2020-11-30 14:51:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 4fe2e28e09f24d190e3be1d62eadae67 SHA-1: b36b781fd46f9bdd3bb86b68f43a462c880a061e SHA-256: 3070378d46afadb5ea17dc0faf033d2477432693cf3db0c0cd323a3606ff31de
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URI pointing to 'https://trafffi.ru/strik?utm_term=best+minecraft+kitpvp+servers', suggesting a phishing or malicious redirection attempt. The document body, though heavily obfuscated, contains text related to 'minecraft kitpvp servers', likely a lure.

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
  • 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://trafffi.ru/strik?utm_term=best+minecraft+kitpvp+servers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381976/normal_5fa5fbd822f63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370092/normal_5fb339304b8ba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0d4752bbd7406580625ec/t/5fc4867ce18c5c478e8c6994/1606715006579/tosawawobeteza.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/imagine_charter_school_at_firestone_email.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0e96b474932ca26a161a/1606225559112/65504807056.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0b5bec30a162e0c519083/t/5fc2c38e6457125654979967/1606599567322/ford_manual_transmission_identification.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/mito_di_amore_e_psiche.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/histology_objective_question_and_answer.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d7ac403f5353fd956fc5/t/5fc493254e98326c02a368d3/1606718246103/tibia_and_fibula_labeled_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/23629918528.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc009dd8787e87989674e7e/t/5fc0dc6e5147b1480453a0b6/1606474863565/gogexuposefud.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdef045147b14804f7c51c/1606283014387/22072704227.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_off0000d535.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD535 5176 bytes
SHA-256: dd62137212288ddd2aacc7425afc8f76cebeca2d87cc59edac59f2cffdf93169
font_01_sfnt_off0000e756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE756 5300 bytes
SHA-256: 3f718673ca1efd6bc0609b8d684b1b270bc32ef5d823e0b3042194c7e29094ad
font_02_sfnt_off0000f955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF955 11380 bytes
SHA-256: d7072f03a38a49958a4c9baf95d47313cc33d5c5f5405eeb9c4d4777a492e13f
font_03_sfnt_off00012002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12002 16184 bytes
SHA-256: 6bf6db819276ada2681957daa55d5b1fa044451b26d7f782ca06c624d4532853

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