Malicious PDF — malware analysis report

Static analysis result for SHA-256 7acf45efa1a35353…

MALICIOUS

PDF

74.0 KB Created: 2021-02-27 00:58:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: df137c2c5ae78b56ec8ada437aa7c1b4 SHA-1: 4efa16efaf780405be710d2a17e3c121592ae429 SHA-256: 7acf45efa1a3535381a20af6db490f7a10c82482e4f3c4488872fba3fc7b6ee6
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a phishing or malware distribution site. The document body, though heavily obfuscated, contains keywords related to 'Verizon 4G LTE tablet reset button', suggesting a lure for technical support or account-related scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://kuzutuzo.ru/123?utm_term=verizon+4g+lte+tablet+reset+button PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465707/normal_60145a5e9b6d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379379/normal_602ce81ebcb78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369656/normal_5fd3b94f3c3d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413713/normal_601a670573f6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477400/normal_601ede9579971.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390638/normal_5ff47d7982283.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460980/normal_5fc621cd7346c.pdfIn PDF document text
    • http://tuwukadinem.mygamesonline.org/schwinn_17_function_bike_computer_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_6015845d31eca.pdfIn PDF document text
    • http://pexawegowe.mywebcommunity.org/dozafonuvuzowobino.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fifuto/boisterous_font_free.pdfIn PDF document text
    • http://rojanesifilagu.myartsonline.com/xidulutifewasow.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/sherlock_holmes_the_abominable_bride_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/karnofsky_performance_scale_cancer.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/sidoper.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/66028938994.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F9 4976 bytes
SHA-256: ae00f1ec55e38207bd2a76b1170f2b9380d7590fb0e1e014ca9fef67826ed117
font_01_sfnt_off0000e8ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FF 10544 bytes
SHA-256: 6db825e3309b64e812e8520e62aecb6e1f10803b9cb5229dd066ef1dfe16b57a
font_02_sfnt_off00010cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CFD 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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