Malicious PDF — malware analysis report

Static analysis result for SHA-256 e706f58f35c879a1…

MALICIOUS

PDF

89.4 KB Created: 2021-02-06 06:22:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ae8fb540b43f635ff375b2265192c51b SHA-1: 472c6774cf469c00b6fe0506f39d58371e9010e5 SHA-256: e706f58f35c879a1237659e482ace85b3840413faef19184c6f2286524791743
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'https://maypoin.ru/123?utm_term=game+of+thrones+s07e05+1080p', which is likely a phishing lure. The document body, though heavily obfuscated, contains text related to the URL, suggesting an attempt to trick the user into visiting the malicious site.

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://maypoin.ru/123?utm_term=game+of+thrones+s07e05+1080p PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449395/normal_600da7a87daf4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474746/normal_5fe09236259d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370547/normal_600cde9e777fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459628/normal_5fcc00d2e4697.pdfIn PDF document text
    • http://mysteps.online/japan_travel_guide_free_downloadhtyl3.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/nowonovege/kijuxojulovepamuge.pdfIn PDF document text
    • http://sitojedakolotil.rf.gd/share_forfeiture_account_in_balance_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/report_lost_drivers_license_queensland.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/28464015176.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/mifesaraz.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/reportero_tve_cachopo.pdfIn PDF document text
    • https://s3.amazonaws.com/bejokazemur/outline_plan_for_approval_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/29766690137.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/48170161764.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/camera_movements.pdfIn PDF document text
    • http://femolejo.epizy.com/ics_800_exam_answers.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_off0001123e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1123E 5472 bytes
SHA-256: 4e0608fe4a919e519c3c3a7d9bc2c6ea25063bff47b83ed497dbd1ea7ea258ec
font_01_sfnt_off000124b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124B7 11168 bytes
SHA-256: 05ab178d7e265ed56d94a718ab791f96ee90648724c70406fc23796d43dd488e
font_02_sfnt_off00014a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A77 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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