Malicious PDF — malware analysis report

Static analysis result for SHA-256 779724e90e767b96…

MALICIOUS

PDF

66.7 KB Created: 2020-11-14 03:03:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 67e778e43f0aac97f3b3b7a4a3c3a670 SHA-1: 2715a8db5ff862023dac097e9468953996a22388 SHA-256: 779724e90e767b960354c407b2a07d813d7ddad550abd085b1b2ede63191489a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an external URI pointing to a suspicious domain, likely intended to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'machine shop project plans pdf'.

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://traffnew.ru/123?utm_term=machine+shop+project+plans+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481671/normal_5faf0983cf91d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376087/normal_5f8a81a0c8ab4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426410/normal_5f9a10f7da35a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449627/normal_5fa295d0e8868.pdfIn PDF document text
    • https://samoxaposem.weebly.com/uploads/1/3/4/3/134361226/5b026474.pdfIn PDF document text
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/guxibonin-duwasudozumi-vifudemewalela.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412380/normal_5fa37428edb58.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/42476555615.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/dajetepibufozetonajetoka.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/tutorial_dreamweaver_cs6_bahasa_indonesia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/302a06f7-4b2e-4fbc-ab0a-824f45ad4eda/kupegasipudoxititedexudej.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/gexenasomaluzodiwojuri.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/metformina_marcas_mexico.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/music_videos_2020_amharic.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000caab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAAB 5324 bytes
SHA-256: 5dc716f8236afab56af479a534470eaf8b3268b4161e39d2cc261d0711937f40
font_01_sfnt_off0000dccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCB 9788 bytes
SHA-256: 754923b29286291be8cd4566a762d6fcd68c3aaa2cb65eaa3ea7cb74d5c9bd92

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