Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f7ce439ad81f1d…

MALICIOUS

PDF

93.3 KB Created: 2021-03-19 17:23:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d19d1da16bef0d2a45937c90e5d6b3bd SHA-1: ed274237f157f5f4a6553d01ca30c9f13078e678 SHA-256: 96f7ce439ad81f1d0414ac6d90f009319242c064ec495eedbccd4aa178e6c52c
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 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://vilenefex.ru/wix?keyword=ankhbot+mod+commands PDF link annotation
    • http://organicnu.info/did_a_black_man_invented_the_internet0etab.pdfIn PDF document text
    • http://losmopaka.site/bheema_songs_free_telugu7s49o.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarimeg/ZMIiaje/ornl_fcu_mobile_app.pdfIn PDF document text
    • http://verification-help.business/how_do_you_use_a_lancet_devicec2fzv.pdfIn PDF document text
    • https://cdn.sqhk.co/zafupusapun/SPie2VV/capital_e_with_accent_alt_code.pdfIn PDF document text
    • http://zelopaqq.xyz/how_much_does_a_director_of_engineering_make_at_google4puqu.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/urgjdhi/poxolefatuvekopuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ebcfae26-b4e4-4f1a-a5b2-c5bdbddc1bdf.filesusr.com/ugd/259f90_adcf21c2325f4725963ef8765abdfa16.pdf?index=trueIn PDF document text
    • https://73f4d879-981c-49fe-abc7-520f36a14a84.filesusr.com/ugd/b77b08_b107c62d8a3e4fdb903bbefb044ed248.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/58154321626.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/epson_artisan_1430_wifi_connection.pdfIn PDF document text
    • http://ribezewipuzez.epizy.com/beauty_plus_camera_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezodepugov/akshara_singh_songs_free.pdfIn PDF document text
    • https://8f0c9b82-9570-4081-bbb7-5e23a534ea09.filesusr.com/ugd/7008f3_7150e29b4f8f44f29071dbb423536e5a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/canadian_high_commission_jamaica_visa_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/books_for_8_year_old_boy.pdfIn PDF document text
    • http://banitazivi.epizy.com/30520569996.pdfIn PDF document text
    • http://bofagobun.rf.gd/regapikavazoloron.pdfIn PDF document text
    • http://ropanosuge.rf.gd/terraform_state_azure_storage_account.pdfIn PDF document text
    • https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_0f8b13eb6b4c4764b1704bc5d4abfd85.pdf?index=trueIn 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_off0001172d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1172D 5244 bytes
SHA-256: 7647cd86627733159c314f0374ca706d4928881d3123982b9257d4c10c545c38
font_01_sfnt_off000128d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128D7 11792 bytes
SHA-256: ae3074af21881865b688ce260b3ead0388ffa104ababb004abfad8ed8c936eff
font_02_sfnt_off0001513a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1513A 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd

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