Malicious PDF — malware analysis report

Static analysis result for SHA-256 195c898c517e5637…

MALICIOUS

PDF

76.3 KB Created: 2021-03-17 13:39:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 360a9d363a91e5c22faff3c19f1a4a27 SHA-1: d7dbba8034a8f147c3e2b83be952a5a1f61c7e0d SHA-256: 195c898c517e5637d2f4b6f03f456f15b5f26d395d33c62ad27332d57ac4faa6
156 Risk Score

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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=las+meninas+velazquez PDF link annotation
    • http://fumexijana.getenjoyment.net/employment_news_this_week_odisha.pdfIn PDF document text
    • http://berozabekep.sportsontheweb.net/story_elements_lesson_plan.pdfIn PDF document text
    • http://kevebofuru.medianewsonline.com/anatomy_and_physiology_10th_edition.pdfIn PDF document text
    • http://xujilutobidiko.iblogger.org/chopin_nocturne_op_9_1_sheet_music.pdfIn PDF document text
    • http://solokekojo.22web.org/spain_food_guidelines.pdfIn PDF document text
    • http://jijoxep.getenjoyment.net/417033308.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://91c7bc9f-df77-4dbd-ae51-8bcf521f3e61.filesusr.com/ugd/1df9ea_2b11224281504f16b3ea0a1fb4cedb0f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/cardinal_pole_school_ofsted_report.pdfIn PDF document text
    • http://tedajeti.rf.gd/jemajenodixizaren.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/62252045575.pdfIn PDF document text
    • https://2b4b9a66-705d-4e40-a31d-28d4db190467.filesusr.com/ugd/1dbb98_b0ebd477ae0a4f2fa2048c57261bd519.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/zelda_epona_s_song_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/how_to_make_a_square_tube_bending_machine.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/harry_potter_6_movie_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/22524684667.pdfIn PDF document text
    • http://kazupisejurig.rf.gd/when_should_i_receive_my_ssa_1099.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/82394174219.pdfIn PDF document text
    • https://8c4778c4-ed17-4cf1-86f9-5448e21c5c15.filesusr.com/ugd/6da380_94f1ad431a094492bf78381443c5a5c3.pdf?index=trueIn PDF document text
    • https://72a23b54-95c1-47c0-80d6-f7b1310faeb8.filesusr.com/ugd/65b209_00038210d77d4b62b0a5c6a3a9cd2143.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/20511478038.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/19800266754.pdfIn PDF document text
    • https://19972ee8-34f0-4900-8009-9f590161cd02.filesusr.com/ugd/64db51_1b01fa03e1c44752a4d9172ac24841bb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/muvarelo/oh_yes_please_in_french.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF8 4912 bytes
SHA-256: a90ed48da3b9186a4d132e6239e88084bf8e85fc50eb3bfa74403015cb128fed
font_01_sfnt_off0000fcb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB2 11532 bytes
SHA-256: e5ed6186e3338f41c484c6ea006c2f6e29e01b59f997303121a29f2c2556a08c

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