Malicious PDF — malware analysis report

Static analysis result for SHA-256 69bbf1fef781230a…

MALICIOUS

PDF

75.7 KB Created: 2021-03-11 18:52:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ce6e8be36a24a87bafeb8a37d4703eb SHA-1: 6ded0967efe49eccc3caf1d99d4392e7c3c81e58 SHA-256: 69bbf1fef781230a0d7ad8aeb6e880de4aae63ecd8fc8648fe76a3ffb20c0b67
96 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs, with one prominent URL pointing to 'lozipotod.ru'. Heuristics indicate the presence of external URIs and embedded URLs within the document. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery via the linked URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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/123?utm_term=josh+admin+template+laravel
    • http://byseles.xyz/13645873387vqe8f.pdf
    • http://dk-inc.xyz/pokemon_rusty_version_download_gba08uwb.pdf
    • http://i-men.ru/59040392934jhibk.pdf
    • http://circleshtang.xyz/bcbs_appeal_form_arizonab3esu.pdf
    • http://magnitoli-2ekran.site/nuclear_throne_ps4_trophy_guideq2kes.pdf
    • http://carbags.site/neximasuburuxifixn6ru.pdf
    • http://stepka2016.xyz/metin2_saltanat_indir5pbhk.pdf
    • http://lg-copyright.com/install_adblock_for_chrome_androidjwgsi.pdf
    • http://smirnoff-optic.com/what_is_the_central_idea_of_this_paragraph_brainlyqij56.pdf
    • http://tegor.xyz/sample_science_fair_project_display_boardsdgpx7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://e6676b24-921d-4f57-8fca-beda98688f3c.filesusr.com/ugd/144d27_54f68d4f6ead49239f0cc8b1d16840a5.pdf?index=true
    • https://s3.amazonaws.com/tafogusegabomu/ubiquiti_nanostation_loco_m2_datasheet.pdf
    • https://s3.amazonaws.com/zategafozasiru/10474934677.pdf
    • https://s3.amazonaws.com/mogedozara/requesting_email_format_examples.pdf
    • https://s3.amazonaws.com/dowavelaxam/trimble_tsc2_data_collector.pdf
    • https://aa4c2489-c93b-4667-afab-104bf5323bad.filesusr.com/ugd/8b49c6_382885bf41074b05b22b160ec15d4c0c.pdf?index=true
    • https://uploads.strikinglycdn.com/files/823d4384-1ed1-4fd2-a0bc-8d69e8c30c27/bibuweniwatowizufup.pdf
    • https://s3.amazonaws.com/goveruduzewoxu/30111729549.pdf
    • https://uploads.strikinglycdn.com/files/c91e7a89-6235-42cf-bed7-d5c39859c8a7/73476230568.pdf
    • https://828c6a01-da61-4814-986a-f72e64f4f334.filesusr.com/ugd/cdfdba_328114e9edc441928cb3b2a568e78f74.pdf?index=true
    • https://uploads.strikinglycdn.com/files/7c2380fb-5775-4a33-9c5e-ba771a1e4774/butadutupugixe.pdf
    • https://0ef2f354-78a3-4528-990c-72f69c86fc6a.filesusr.com/ugd/6a0da6_00b72fe8ee9e479fac01e64aaadc15ec.pdf?index=true
    • 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_off0000e947.bin
10727980a284b3d3fe6ccd670ecf4e399459dc4d8d206584086517d2fd5def17
pdf-font-stream PDF embedded font (sfnt) at offset 0xE947 5248 bytes
font_01_sfnt_off0000faf6.bin
81321b5f7f55de1a91c96acd0a64d84df16f9c983459c275a900baa0a5e58994
pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF6 11212 bytes