Malicious PDF — malware analysis report

Static analysis result for SHA-256 f033b0860a7a5889…

MALICIOUS

PDF

84.6 KB Created: 2021-03-02 21:50:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40bf75fd5f54f0104d3ea8ad5ee96046 SHA-1: 280b875fa0c4b76c43ee89b52146824d1cb99a0d SHA-256: f033b0860a7a5889d37eb6a7592c607f63161e4c522675001e614c5ab510e600
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. No scripts were extracted, but the presence of embedded URLs and the overall detection score strongly suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/123?utm_term=washing+pole+build+dark+souls+3
    • http://creditscoreusa.info/formel_reaktionsweg_gefahrenbremsung1lmz9.pdf
    • http://opticsystem.website/escape_plan_3_prison_locationzp2tb.pdf
    • http://idealslimitalia-ufficiale.site/watch_the_hunger_games_mockingjay_part_2_online_free_no_sign_upj1jfg.pdf
    • https://cdn.sqhk.co/xumefotebe/e1RgjCq/dodemadasej.pdf
    • https://cdn.sqhk.co/vozeseseber/2jDhc08/king_herod_bible_wiki.pdf
    • http://puvepum.getenjoyment.net/how_did_agricultural_revolution_change_peoples_lives.pdf
    • https://cdn.sqhk.co/borefigux/bOiaIbp/tricky_brain_games_app.pdf
    • http://zekabor.iblogger.org/2012_toyota_camry_service_bulletins.pdf
    • http://tomandbxof.site/dufipifotolj0ixz.pdf
    • http://myfirstsite.xyz/43530577666ntb2q.pdf
    • https://letavozogat.weebly.com/uploads/1/3/5/9/135978758/wuwurapaga.pdf
    • http://fujubipe.22web.org/pevofuderebatefo.pdf
    • http://mmmmmme.space/score_counter_javascripthlwnr.pdf
    • http://gakawisogafuga.mygamesonline.org/vimukutuwitizenevep.pdf
    • https://cdn.sqhk.co/kugefiruxat/whivBgd/40046259819.pdf
    • http://dadivasim.sportsontheweb.net/wodulisubumadofepivod.pdf
    • http://dipazekonowa.mypressonline.com/xexavorivasufotedi.pdf
    • https://tepiduti.weebly.com/uploads/1/3/5/9/135974730/c3513d8a89ab5a9.pdf
    • https://doxavigefixo.weebly.com/uploads/1/3/5/3/135391607/wesumazimuzukaxupok.pdf
    • https://girowotejetut.weebly.com/uploads/1/3/1/4/131406843/bovigozugelak_xixetulitabex_rasepematozexob_lopuxufus.pdf
    • http://edayafar.xyz/folder_colorizer_1._4._68cmtu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://tupikodufalapa.epizy.com/monitor_cardaco_speedo_66002g0emnp1.pdf
    • http://lupibewexuzu.rf.gd/colonoscopy_surveillance_guidelines_nz.pdf
    • http://nerokigonone.rf.gd/95183843452.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_off0000ff8f.bin
860c6b71d57258f791fc69e89647402ac4e1ca6790a4576338b7445d601086e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF8F 5404 bytes
font_01_sfnt_off000111d6.bin
fd0fbbfa1b167bede6993a814c941f82eec0dca033d10663aca6698f44f3585a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x111D6 10580 bytes
font_02_sfnt_off0001362e.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1362E 4324 bytes

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