Malicious PDF — malware analysis report

Static analysis result for SHA-256 07851e662096c086…

MALICIOUS

PDF

75.8 KB Created: 2021-03-15 06:51:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e044bb31535d68cd7319703c145e2d5f SHA-1: 5f7274ab086590f6e3cd7c92224495a4731eb4e9 SHA-256: 07851e662096c0864f9502e3a3dab8b4049ac14126bd5a4e0a73f1291d3e989e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious 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://midufefew.ru/wix?keyword=rainforest+cafe+coconut+shrimp+nutrition
    • http://lexusesadedebaz.22web.org/adobe_character_animator_puppets.pdf
    • http://boliwamipo.iblogger.org/abrahaminte_santhathikal_full_movie_dvdwap.pdf
    • https://cdn.sqhk.co/loziromegon/RnQidgc/gixud.pdf
    • http://cashbackk.site/9008487094u21wq.pdf
    • http://itwow.info/how_much_do_special_needs_teachers_make_a_yearua1wp.pdf
    • https://cdn.sqhk.co/fafujedajir/jhigcsS/72441677613.pdf
    • http://tuduvodakep.mypressonline.com/nowikiredurosererofo.pdf
    • http://zasazigupat.getenjoyment.net/nurosoli.pdf
    • https://cdn.sqhk.co/jeforije/giCijjd/restaurant_daily_cleaning_checklist_template.pdf
    • https://cdn.sqhk.co/zupodejadofe/YnRiel5/20922013675.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tuvojiteziw.epizy.com/boxopefokawoni.pdf
    • https://s3.amazonaws.com/dejolavubukugeb/chhota_bheem_speed_racing_game.pdf
    • https://s3.amazonaws.com/tasufagijaremo/29386351993.pdf
    • https://s3.amazonaws.com/dazovosugev/kumano_kodo_hiking_guide.pdf
    • https://s3.amazonaws.com/lanubili/arcade_games_rom_mame.pdf
    • http://ferogexomemu.rf.gd/nejikidumotamusexelosijop.pdf
    • http://wojibikifi.myartsonline.com/curso_de_frances_gratis_en.pdf
    • https://s3.amazonaws.com/dusubonifu/86046878598.pdf
    • https://s3.amazonaws.com/palevijuj/manajolizito.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec02.bin
4cc242629ac17206ded4f913e15e3ceadf3112372d3430243ec3311741a88229		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC02 5232 bytes
font_01_sfnt_off0000fdb1.bin
97154d36676d55689fe42b941795211c920754a6aa0bbcc4235fad73818c2a9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB1 10688 bytes

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