Malicious PDF — malware analysis report

Static analysis result for SHA-256 5444f196d452a950…

MALICIOUS

PDF

80.9 KB Created: 2021-02-28 09:52:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 8e7b0b45bc3b8886e014c1de8539d2bc SHA-1: c4f4e7b0051b4c9474a857653740974a160bec60 SHA-256: 5444f196d452a950532f4b32e3fc5d40bba9bbe6ff163c47b62d16f0775e7ce2
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, specifically 'https://xezojetit.ru/award?keyword=the+expanse+season+4+episode+10+cast'. This URL is presented in a way that suggests a lure related to the TV show 'The Expanse'. The ML classifier and ClamAV detection strongly indicate maliciousness, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/award?keyword=the+expanse+season+4+episode+10+cast PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4485434/normal_5fe279f00cf88.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/noxelijubefobeponewusaz.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/delta_shopmaster_10_miter_saw_parts.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480393/normal_5fd64881882c3.pdfIn PDF document text
    • http://fapasevusiledap.mygamesonline.org/31669183671.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426699/normal_5fdf1d0dbdb7f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495860/normal_5ffebe9ba60ae.pdfIn PDF document text
    • http://mujudesuxiropa.sportsontheweb.net/best_stock_watchlist_app_android.pdfIn PDF document text
    • http://kufafukedexepix.mygamesonline.org/how_to_train_your_dragon_2_full_movie_in_tamil_download_480p.pdfIn PDF document text
    • http://lajodibibodi.getenjoyment.net/social_implications_of_climate_change_in_southern_africa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369525/normal_60222f3f85085.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/burglary_in_nigeria.pdfIn PDF document text
    • http://petojijoxura.onlinewebshop.net/zunuzivasoxezugosa.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/define_biotransformation_of_toxicants.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/master_quest_vs_original.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/handoff_report_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/serugodadakazud.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/anaconda_3_480p_movie.pdfIn PDF document text
    • http://tavoxelelenasi.onlinewebshop.net/arduino_board_manager_missing.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/98749467309.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF319 5120 bytes
SHA-256: cff50606fd66fb0fce9bcbd31d98744ed93a3ca516af23af0bbb641c177c8407
font_01_sfnt_off00010486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10486 10328 bytes
SHA-256: 289e7ffee2f527e084d1ddbdf6afd555b9f588500ae117e052b682843d41442e
font_02_sfnt_off000127c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127C3 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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