Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ccd4ce6aa54747…

MALICIOUS

PDF

83.0 KB Created: 2021-03-02 22:17:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 079f2bfed22991c230da65fc4b35a5e0 SHA-1: dc288127398fa27550cf48a27ce67606ceb63f24 SHA-256: 34ccd4ce6aa54747348b260ac31739f26f33b255cbb89f2d331c210f2f75cafe
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to 'soxebez.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a 'guide to good food textbook'. No scripts were extracted, but the presence of an external URI in a malicious PDF strongly indicates an attempt to redirect the user to a harmful site.

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://soxebez.ru/wix?keyword=guide+to+good+food+textbook PDF link annotation
    • https://cdn.sqhk.co/posebozej/fNYp8Md/xemonupifubugosimu.pdfIn PDF document text
    • http://lebedugipul.mywebcommunity.org/94921655634.pdfIn PDF document text
    • https://cdn.sqhk.co/rabuvimi/ihjPiaR/top_hits_2020_songs_uk.pdfIn PDF document text
    • http://tepoparupomo.medianewsonline.com/mesa_boogie_triple_rectifier_150-watt_tube_head.pdfIn PDF document text
    • https://cdn.sqhk.co/nipumusawobo/Njhhdzw/big_win_basketball_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/gixejefi/lDAhggj/85541085816.pdfIn PDF document text
    • https://cdn.sqhk.co/juzivadareka/iRiajjC/royal_family_news_update.pdfIn PDF document text
    • http://fesotisifofil.mygamesonline.org/aswb_practice_exam.pdfIn PDF document text
    • https://cdn.sqhk.co/jutafegobexe/GlhcLhg/applock_pro_cool_apps.pdfIn PDF document text
    • https://cdn.sqhk.co/fodexuxefeba/ijefx3M/80626312565.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/ponivotigegepub/fugimobo.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/egypt_human_development_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/android_ringtones_app_free.pdfIn PDF document text
    • http://gumomexad.onlinewebshop.net/the_art_of_eating_spaghetti_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/airtel_live_tv_app_java.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/86622003450.pdfIn PDF document text
    • http://duwemanuwixam.atwebpages.com/how_to_reset_turtle_beach_elite_800.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_off0001096e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1096E 4864 bytes
SHA-256: 0bacc471654c85f0caf37119875b1d6dc9826d6e670faf7bb51db1451f7b76d9
font_01_sfnt_off00011a24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A24 10700 bytes
SHA-256: 8cc88906fdeaeb737099bcb35e5178a0c214363d5a9204857eedb4f00385c904

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