Malicious PDF — malware analysis report

Static analysis result for SHA-256 85c5e06fc66cdeb6…

MALICIOUS

PDF

81.0 KB Created: 2020-11-19 10:11:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 28f3b3f44f15d1eddbc50028c2d51927 SHA-1: d9b2233f9684d2f52a2edef518a5515e0458767e SHA-256: 85c5e06fc66cdeb6918197c61b7c95dc66f35acd0a80b4ade91482cf5917a991
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though partially corrupted, suggests a lure related to a 'character creation guide', aligning with social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://trafffe.ru/aws?utm_term=jump+force+character+creation+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486215/normal_5fb3fcd88fdd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368768/normal_5f9ec63aa283f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374853/normal_5fa1f85e4a025.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390068/normal_5f9210309870f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446165/normal_5fa97a85debcf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366984/normal_5f8897f0798e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423171/normal_5fb4b654b7c3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389603/normal_5fa0da43f026f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375195/normal_5f8963245ef6c.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/28cab4e7-e4fa-4086-a225-a0e0a5962409/29063812245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b6751fb-f6f4-433d-aa75-a796ef72f0c7/aftershokz_trekz_titanium_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/604503b1-4d95-4d6e-b565-bb017a06155d/dovazerorolaravev.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/wabesubajoxixosometenuso.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/28311322145.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_off0000fb3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB3A 5348 bytes
SHA-256: 3dab1aeee90bb7f4448d571d5ac1d3777bc14fc35a2174ce3bba5491a4f4f941
font_01_sfnt_off00010d46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D46 12904 bytes
SHA-256: f2e8682821234926b49721f1fc76a72e823b589a99e48351d2c45f35c39a8311

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