Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc63fc87c61c390c…

MALICIOUS

PDF

107.3 KB Created: 2021-03-19 17:23:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 590965cc6f63dff665e07a26c66ff683 SHA-1: 2d0c3c4a63b405ce5ec936b68338294b9230a7fc SHA-256: fc63fc87c61c390c68de8a175b108fbe8ad6aaddc7ab01680b4a778880c1708b
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to 'https://lozipotod.ru/wix?keyword=helen+keller+accomplishments', which is likely a lure to a malicious website. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a compromised or malicious domain, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/wix?keyword=helen+keller+accomplishments
    • http://viwavidif.getenjoyment.net/vaikhanasa_agama.pdf
    • http://help-lnstagramcopyrights-verify.com/dungeons_and_dragons_collector_booksjvaya.pdf
    • http://ccckkkkk.space/cbs_sports_tv_guidehs1z7.pdf
    • http://top-shop-store.website/690882921013ldfq.pdf
    • http://rixorevu.getenjoyment.net/teletosa.pdf
    • http://xujaxul.mywebcommunity.org/how_to_fix_ref_code_s0a00.pdf
    • http://euromarket.pro/15801356471243vo.pdf
    • http://dmdmassage.com/metric_conversion_worksheet_high_schooli6x3g.pdf
    • http://shtangennstutkupitseychas.xyz/defisakogeborakotujudi75yn5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rekorewexidiwo/febolowigumami.pdf
    • https://s3.amazonaws.com/vajefam/nosagovewiremijemukesig.pdf
    • https://s3.amazonaws.com/wiwamoxamo/kujefovadegizuf.pdf
    • http://vekisofekibote.myartsonline.com/regimen_politico_definicion.pdf
    • https://s3.amazonaws.com/juzowilipi/are_potatoes_good_for_liver_cirrhosis.pdf
    • https://s3.amazonaws.com/zewimu/xemepusuj.pdf
    • https://s3.amazonaws.com/mujevubutukoxu/72664857872.pdf
    • https://uploads.strikinglycdn.com/files/88e0c7d5-d54f-464a-8fde-d5e1b0461ee1/how_can_i_see_satellite_view_of_my_house.pdf
    • https://uploads.strikinglycdn.com/files/eb333ab5-876e-43af-9b29-32056add84dc/71067600971.pdf
    • https://s3.amazonaws.com/wudibirewuduto/food_chain_pyramid_template.pdf
    • https://uploads.strikinglycdn.com/files/008c5f83-a17c-4b64-ba23-7cf6b7f31d64/jabenitoditevefixujenegub.pdf
    • https://s3.amazonaws.com/tanikanaw/types_of_animals_worksheets_for_grade_3.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001644f.bin
8059e272a5f8758a652a0d7bb6657e2d794337cd5695be86ca3f03a69b9c0aa9
pdf-font-stream PDF embedded font (sfnt) at offset 0x1644F 5196 bytes
font_01_sfnt_off000175c7.bin
bc4c6b2219d7521c0fc719dfaee9e57064542f9d5c0c1934abcae14abeb8153f
pdf-font-stream PDF embedded font (sfnt) at offset 0x175C7 12520 bytes