Malicious PDF — malware analysis report

Static analysis result for SHA-256 384b1216bc88a878…

MALICIOUS

PDF

75.3 KB Created: 2021-02-28 11:14:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 396fdc7246eb7892978ef1bd9d1d7346 SHA-1: 1cf32c927f616a86259df23efb8c2535af573392 SHA-256: 384b1216bc88a8783f68611c46bde8acc5049ffd6cc70023b984464690fc1950
96 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically pointing to 'ponafet.ru'. The ML classifier and ClamAV detection strongly indicate maliciousness, classifying it as a phishing or trojan. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

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://ponafet.ru/123?utm_term=what+do+pink+elephants+symbolize
    • http://fherixq.com/warhammer_40000_necron_codexye1ps.pdf
    • https://static.s123-cdn-static.com/uploads/4454813/normal_5fe353fe8fe04.pdf
    • http://contact-git.top/45371939525i1d5q.pdf
    • https://static.s123-cdn-static.com/uploads/4411918/normal_5fcd41978652d.pdf
    • http://waystep.site/54923405262s51a6.pdf
    • https://static.s123-cdn-static.com/uploads/4380393/normal_5fd063ad49d25.pdf
    • http://robertferrell.net/66040339928o5320.pdf
    • https://jirewolekaza.weebly.com/uploads/1/3/4/3/134387643/nanoxopuredujor-gukirelo-xenizux-nedox.pdf
    • http://pannochki-art.com/arris_tm822g_speedvx5kk.pdf
    • http://jukexufepezaj.22web.org/kadipexosovugalavuwuv.pdf
    • http://topdiscount.pro/pain_in_the_heel_of_my_footj9lgt.pdf
    • http://fringigejy.site/message_to_the_black_man_quotes72axz.pdf
    • http://tiktokfrance.fun/forinuzejicq3e0.pdf
    • https://zadopelujon.weebly.com/uploads/1/3/4/8/134884154/guxodu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e633.bin
04df989293941824b3a6cc98466c9fca2b71e0cdc08133597ff348d6c6da285b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE633 5472 bytes
font_01_sfnt_off0000f8c0.bin
2451a589e5bffb84df9bf1f9eb363913cfa01c3ecb6c1ff3c1dd4aa425be6a81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C0 11904 bytes

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