Malicious PDF — malware analysis report

Static analysis result for SHA-256 95abdbb97ca5fb42…

MALICIOUS

PDF

76.9 KB Created: 2021-03-24 17:13:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 971abe29a39beaad54703ffb7618cf5a SHA-1: 9a3ff64e0450289615eacfb2afe754aae8a7efac SHA-256: 95abdbb97ca5fb428e6ed2edb5b451c7a5410d1a693b31a9887f5ff88500260f
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, including one that appears to be a search result lure for song lyrics, directing users to a disposable hosting domain. This suggests the document's primary purpose is to redirect users to malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://mezovuduw.ru/aws?utm_term=memories+bring+back+you+song+meaning+in+hindi PDF link annotation
    • http://cabinetshq.xyz/xozatinixugimodaqr62u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412999/normal_5fc5a2da7ded1.pdfIn PDF document text
    • http://winoorama.fun/3640409473i5lat.pdfIn PDF document text
    • http://kozidozilujivox.getenjoyment.net/23130464722.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367622/normal_60061fb50149d.pdfIn PDF document text
    • https://cdn.sqhk.co/lefuwaregew/jzqIpjf/91453884773.pdfIn PDF document text
    • https://cdn.sqhk.co/zojixemem/GKhiKif/pepefefigerugupilavadan.pdfIn PDF document text
    • https://topizamo.weebly.com/uploads/1/3/4/4/134435864/devugujafazukaju.pdfIn PDF document text
    • http://smm-target.ru/nemutejisazujafevifidt47fv.pdfIn PDF document text
    • https://felinabaf.weebly.com/uploads/1/3/4/3/134380667/02f0db36d6a898.pdfIn PDF document text
    • https://cdn.sqhk.co/savadapo/hbFiaCn/rgb_led_strip_remote_control_instructions.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/Cjjlgec/water_and_electricity_services_malta.pdfIn PDF document text
    • https://bodokevusigow.weebly.com/uploads/1/3/2/7/132740435/lowoxudafuwaxurotuka.pdfIn PDF document text
    • https://fukoroxovelamos.weebly.com/uploads/1/3/0/7/130776486/kopijubizedokam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421937/normal_6041e659f0897.pdfIn PDF document text
    • http://cartest.pro/nfu_pet_insurance_claim_form41wg9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386349/normal_6052e67a5c917.pdfIn PDF document text
    • http://palubofapejuraw.mywebcommunity.org/27335453398.pdfIn PDF document text
    • http://vinograd.io/jabukixaw7o8o.pdfIn PDF document text
    • https://cdn.sqhk.co/wemorapi/bvlghib/vavegitunet.pdfIn PDF document text
    • http://xiwakaravivomik.scienceontheweb.net/dirt_devil_vacuum_parts_walmart.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lumosaneja.onlinewebshop.net/best_2d_animation_software_for_beginners_free.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED9C 5632 bytes
SHA-256: 7fc76330634c206aa546d47f39fbf92fb79d1142b21a1c09375efc3779572550
font_01_sfnt_off000100b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100B3 11092 bytes
SHA-256: e9209a078d94c5f8c8bd15e0ac0d26cc3b51655c6f7fab47f5c527373ffdfbac

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