Malicious PDF — malware analysis report

Static analysis result for SHA-256 e327dcd0e999fb3e…

MALICIOUS

PDF

79.1 KB Created: 2021-03-02 03:31:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: afa4a8dd29c806410e8549113ef3b13f SHA-1: 9fa74a43cdc3a4dbb7142f960d75f62914a420d6 SHA-256: e327dcd0e999fb3e5d87a46c96afe06f7db75d8edd33d178d83b77e81c07e110
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs to a domain associated with malicious activity, likely intended to trick the user into downloading a secondary payload or visiting a phishing site. The document body, though heavily obfuscated, contains text related to fixing an air conditioner compressor, suggesting a lure to entice users to click the malicious link.

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://botokaw.ru/123?utm_term=how+to+fix+a+portable+air+conditioner+compressor PDF link annotation
    • http://alcozerox.com/xixesowa1zyad.pdfIn PDF document text
    • http://xuzunebizojebab.22web.org/pidetemogobajituzam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496014/normal_602ee6d667877.pdfIn PDF document text
    • http://givixalakogiw.22web.org/69968762833.pdfIn PDF document text
    • http://poroda.site/477784517308q4xz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471692/normal_602a141aecb8f.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
    • http://dujesobu.epizy.com/polazuboxe.pdfIn PDF document text
    • http://xejeguzopi.rf.gd/sloan_flushmate_503_dripping_sound.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/dujinesa.pdfIn PDF document text
    • http://rojugukilajix.epizy.com/24622676458.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/dictionary_of_bombastic_words.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/almaden_community_center_activity_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/jumitigemafolorikugaxe.pdfIn PDF document text
    • http://gubogur.rf.gd/how_to_work_a_typo_shower_speaker.pdfIn PDF document text
    • http://gikunipif.epizy.com/pewavinejuwakov.pdfIn PDF document text
    • http://pavasokunise.epizy.com/sesano.pdfIn PDF document text
    • http://gobipubefosoja.epizy.com/simonozujijisizosaxaveka.pdfIn PDF document text
    • http://xanawuvogi.epizy.com/dead_island_free_pc.pdfIn PDF document text
    • http://tavupikegoseri.epizy.com/form_arcosanti_2016.pdfIn PDF document text
    • http://velumosak.epizy.com/farming_simulator_2015_xbox_360.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF49 5352 bytes
SHA-256: a0abf786e665bf44986d9ad05a2c1da5d2bd87ee6de62947a1d2de39729f6d2d
font_01_sfnt_off0000f161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF161 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off0000fcc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC4 10564 bytes
SHA-256: 210df0e9c7551de55dd2b877605b00b6c8691768686bd8fd10a510d528a149eb
font_03_sfnt_off0001206d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1206D 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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