Malicious PDF — malware analysis report

Static analysis result for SHA-256 19dd68f66ba13bcf…

MALICIOUS

PDF

79.8 KB Created: 2021-03-27 21:05:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: baabd8383b44d2db7e303a91414f2f22 SHA-1: e92d4ed483b73b41aaa67f79cfb61e66258e546c SHA-256: 19dd68f66ba13bcfe7b8ba5101c202981862d394ffcf92f87cc55bcf36d79465
96 Risk Score

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 embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a product-related lure to mask the malicious intent.

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://jumiwimov.ru/wix?keyword=kava+instant+coffee+walmart
    • http://podarokinsta.site/what_are_the_examples_of_daily_hassles5ga36.pdf
    • https://cdn.sqhk.co/rorexamuviz/iiigcpO/american_speedway_racing.pdf
    • http://dasezin.getenjoyment.net/41719026274.pdf
    • http://sadogiropi.mypressonline.com/valence_electrons_practice_worksheet_answer_key.pdf
    • http://pop-marketplace.ru/basic_english_grammar_quiz4eb2l.pdf
    • http://bagerisevi.scienceontheweb.net/rojupiguxixapenona.pdf
    • https://cdn.sqhk.co/tiwefuxab/jeDjgVU/31243458136.pdf
    • http://vuxilenusip.mypressonline.com/22494089533.pdf
    • http://mokaxizekebade.scienceontheweb.net/zibagobuf.pdf
    • http://nuzarekuzugav.mypressonline.com/38634910826.pdf
    • https://cdn.sqhk.co/kogujipubap/eBpif77/36850098002.pdf
    • http://qlemelest.online/reading_comprehension_exercises_lower_intermediate_studentslrr4n.pdf
    • http://kixiwogazu.sportsontheweb.net/xuwusojikafekiworelel.pdf
    • http://fulifubajamo.mywebcommunity.org/48060317083.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/kulinisokakewi/best_adventure_android_games_of_all_time.pdf
    • https://s3.amazonaws.com/befafuni/ajooba_song_ringtone.pdf
    • https://s3.amazonaws.com/solonebosop/ap_transport_driving_license.pdf
    • http://zisukuvi.atwebpages.com/is_chicco_fit2_worth_it.pdf
    • http://dakafatuvuguviz.atwebpages.com/92947027769.pdf
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecc5.bin
7ddc080574d2740774faa5849a2465232c3caa3d435dd585df81e550f2414590
pdf-font-stream PDF embedded font (sfnt) at offset 0xECC5 4936 bytes
font_01_sfnt_off0000fd7f.bin
813317bb40ec744161e4435cb33db1a587ea1cd35fbd883478600166d9733c55
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD7F 11396 bytes
font_02_sfnt_off0001243b.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x1243B 4324 bytes