Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c3102b1e02224ba…

MALICIOUS

PDF

80.1 KB Created: 2021-03-28 20:22:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 774893f4fca5fc39c7c1e169ed79fae3 SHA-1: 541ddfb6ad5bf7455244ea0b7058873e03ef610a SHA-256: 8c3102b1e02224ba35f0e979d2b97f8d5107a1199d4dd9bd04cd635aa2437fe7
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 0.9990

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/award?keyword=anlauttabelle+flex+und+flora+pdf PDF link annotation
    • http://wegaturagifo.getenjoyment.net/addressing_barriers_to_learning.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460725/normal_5ff086bc0daa3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414175/normal_5fd6f07a79af2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403805/normal_5ff5800debc2c.pdfIn PDF document text
    • http://waranijovuv.sportsontheweb.net/xuluxexes.pdfIn PDF document text
    • http://magicwoolshop.com/togejakok31ods.pdfIn PDF document text
    • http://fojukivijivik.medianewsonline.com/does_verizon_tv_have_voice_remote.pdfIn PDF document text
    • http://world-wildshop.com/zixozup46uxk.pdfIn PDF document text
    • http://kasyanbeauty.com/dadijupufifaluwapesurazdxjr3.pdfIn PDF document text
    • http://vimoroketoburiv.22web.org/kagatanuwubosedozeso.pdfIn PDF document text
    • http://rawoferifexa.22web.org/tofivutis.pdfIn PDF document text
    • http://1fps.ru/alien_invasion_terraria5bwuo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446491/normal_5fe5b6efa1d1b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385213/normal_5fca402b14038.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415937/normal_5ff7d739efde7.pdfIn PDF document text
    • http://helpcopyright-service.com/galelapakh56i3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453764/normal_5fe9de8e7ddd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449987/normal_601bb31439c85.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lakonupinazuj.rf.gd/possessive_pronouns_and_possessive_determiners_worksheets.pdfIn PDF document text
    • http://nozefemalevarug.rf.gd/88020303315.pdfIn PDF document text
    • http://xepalufozakot.epizy.com/difference_between_azeotropic_and_extractive_distillation.pdfIn PDF document text
    • http://dubuxizomigowab.rf.gd/vocabulary_for_ielts_speaking_academic.pdfIn PDF document text
    • http://bugigumu.epizy.com/checkrein_deformity_great_toe.pdfIn PDF document text
    • http://matujuluji.epizy.com/6.0_diesel_egr_delete_kit.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE446 5056 bytes
SHA-256: 1f537358c7aa0ee980ffc05bc4713bb869037fff636dca6512290efbec25c9f9
font_01_sfnt_off0000f586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF586 11256 bytes
SHA-256: ad626d55935c0890140d40dd6894b6cea068873225e73815ee6ab25fd0238202
font_02_sfnt_off00011b03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B03 16204 bytes
SHA-256: 83b0f3ed90e545d6d36d14a1982d3fe7024877db6cf476e622725167f7eecf28

Open this report in the interactive analyzer, or submit your own file for analysis.