Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfeac462393ad63c…

MALICIOUS

PDF

72.8 KB Created: 2021-03-23 03:01:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b0267abe27fdffa680d3be42505c2562 SHA-1: 5a25a6f38ff69199a2b720bf8aae890774434ae2 SHA-256: bfeac462393ad63cd143ac094996e9cc90c8b9a2a252f85a7bab7d42c59fb39e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://dugedepap.ru/award?keyword=upadhyay+biochemistry+pdf+free+download PDF link annotation
    • http://merogerofame.66ghz.com/past_continuous_affirmative_negative_interrogative_exercises.pdfIn PDF document text
    • http://vobarijijagurar.22web.org/galesville_reservoir_fishing_report.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404725/normal_5ff3ee58309a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377662/normal_604d61862a442.pdfIn PDF document text
    • http://minosijasif.mypressonline.com/les_bruits_pulmonaires.pdfIn PDF document text
    • http://paguwob.22web.org/life_pharmacy_-_life_al_qusais.pdfIn PDF document text
    • http://dosubodanes.mypressonline.com/jesezakuxepebaxa.pdfIn PDF document text
    • http://womovenum.sportsontheweb.net/arabic_numbers_worksheet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379856/normal_5fd80c8482afb.pdfIn PDF document text
    • http://dufifudusimube.mygamesonline.org/regijikaluriwawizodafo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444864/normal_6051ad5840811.pdfIn PDF document text
    • http://ssurll.com/10v0t5In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fazaburifug.myartsonline.com/logical_thinking_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/migavorubimu.pdfIn PDF document text
    • http://zosusakadutadi.epizy.com/my_ice_maker_stopped_working_ge.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/58398420583.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/60561532350.pdfIn PDF document text
    • http://muwuvago.atwebpages.com/vamabonegiregifewu.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/sisokirugabazif.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/tulobogozesul.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/dredd_comic.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/casio_fx-_991es_plus_apk.pdfIn PDF document text
    • http://rodedewezijore.atwebpages.com/51126750138.pdfIn PDF document text
    • http://lurorozowuwa.rf.gd/jekebaja.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_off0000dcfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFA 5720 bytes
SHA-256: 62cdc0f11c7368558d5a2d722f6fef7b2dbadda670e90cdeb5fd10aea324d248
font_01_sfnt_off0000f058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF058 10848 bytes
SHA-256: 8cf1667d211b10560f2b0957f91b3cf92bdd8b6b6557e20ec33c8b531dc0313b

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