Malicious PDF — malware analysis report

Static analysis result for SHA-256 d68388f1fb2b4f6c…

MALICIOUS

PDF

147.9 KB Created: 2021-02-28 08:38:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 22991723b7d9e1dca1409bad17a8c575 SHA-1: ff325701ddc5d5ed6397c5026a931afb516595ce SHA-256: d68388f1fb2b4f6ce3380d87ac3246f3b7f8d2097b01e11530cf4078b093929a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, disguised as a helpful article. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the presence of an external URI points to a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/aws?utm_term=how+to+control+volume+on+apple+tv+3rd+generation PDF link annotation
    • https://cdn.sqhk.co/xedasuzefer/jigfDb4/simesarusemanomif.pdfIn PDF document text
    • https://cdn.sqhk.co/serodozire/brjajff/top_music_of_the_70s_and_80s.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/slither_io_unblocked_games_offlinee45ue.pdfIn PDF document text
    • http://gatowixipeba.mywebcommunity.org/delta_band_saw_parts_28-203.pdfIn PDF document text
    • http://jibesikore.iblogger.org/10400746223.pdfIn PDF document text
    • http://mixezitubut.mygamesonline.org/how_to_write_a_movie_review_format.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dudotofuzariw.rf.gd/cheap_thrills_song_audio_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/1_pulgada_cuadrada_a_metros_cuadrados.pdfIn PDF document text
    • http://vupaguriwedizid.atwebpages.com/snake_eggs_in_dream.pdfIn PDF document text
    • http://kanusilos.epizy.com/google_chrome_website_to.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/bingel_raket_android.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/imdb_gladiator_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/ampara_hardy_application_2019.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_off0002057e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2057E 5492 bytes
SHA-256: 42898ee8cf605d47c0fa04fad90a08d991b4e1ffc9b389e9da6b8238a89de02e
font_01_sfnt_off0002182e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2182E 12456 bytes
SHA-256: bde168a5e13239c943eaa5b2adf243e945786f690a40fd5c7f75823dd3e008f9

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