Malicious PDF — malware analysis report

Static analysis result for SHA-256 594e8700443f1280…

MALICIOUS

PDF

76.9 KB Created: 2021-03-15 07:03:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ed5a48dcab44d4bcec84dfd5cc805e6 SHA-1: ac4c59b7734b971c403ae0a2a01b558dc6b48007 SHA-256: 594e8700443f1280478e59208d53806becc2960fa449fa2bfa2e483a3e1c9ad1
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body contains a title related to hoverboards, and an external URI pointing to 'botokaw.ru' was extracted, suggesting a phishing or malware distribution lure. No scripts were extracted, but the presence of an external URI and the ML/ClamAV detections strongly suggest a malicious purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/wix?keyword=hoverboards+for+girls
    • https://cdn-cms.f-static.net/uploads/4384484/normal_5fdbe6223285d.pdf
    • https://static.s123-cdn-static.com/uploads/4455894/normal_6005e25bae65c.pdf
    • http://pigalimiru.medianewsonline.com/xupot.pdf
    • https://cdn-cms.f-static.net/uploads/4453885/normal_601e12f8754e8.pdf
    • https://static.s123-cdn-static.com/uploads/4365589/normal_5fe25ce6e2d16.pdf
    • http://cookwellbakewell.com/campbell_biology_11th_edition_online3wsr3.pdf
    • https://cdn-cms.f-static.net/uploads/4470385/normal_6027ff9641c1a.pdf
    • http://scoretdho.best/erythropoietin_anemia_guidelineskcgqi.pdf
    • https://cdn-cms.f-static.net/uploads/4365662/normal_604ac936cb2d6.pdf
    • http://silewugebed.scienceontheweb.net/8580977789.pdf
    • http://bupro.asia/sabuvagilaw0pjz.pdf
    • http://petersikdar.com/where_to_buy_nutone_central_vacuum_parts4lwr9.pdf
    • http://zipimenegan.iblogger.org/beritexenebivufumufuxi.pdf
    • https://cdn-cms.f-static.net/uploads/4488332/normal_6014f6092d770.pdf
    • http://weinmvc.net/icom_756_pro_iii_priceryywi.pdf
    • http://winopufivugum.22web.org/airlift_movie_songs_list.pdf
    • https://cdn-cms.f-static.net/uploads/4420745/normal_6010147834762.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://b03e51a8-7171-48c0-94d6-e4c032e6f37f.filesusr.com/ugd/9421c8_f889e2dc7c5643d3860062d35ee8376f.pdf?index=true
    • http://mejumobax.atwebpages.com/learn_python_programming_packt.pdf
    • http://gagimuludodu.epizy.com/29373486968.pdf
    • http://tuwemajufa.rf.gd/what_i_know_for_sure_book.pdf
    • https://43a2ba88-5de9-465b-b95f-6a4d82f2d06e.filesusr.com/ugd/dcbeda_0d86327aecb54fca8154756de236c73a.pdf?index=true
    • http://nozasilexezut.rf.gd/sharp_atomic_weather_station_spc1005_manual.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_off0000ef55.bin
67fc6ffdf740301372a988165aa4e5ef9bc245091eab2dd74e9352dea8f9f2dc
pdf-font-stream PDF embedded font (sfnt) at offset 0xEF55 5236 bytes
font_01_sfnt_off00010137.bin
c3d5ca711fcc2752d79d8a93d626977ef0a17143b3936e2fa8fe1078323e52c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x10137 10940 bytes