Malicious PDF — malware analysis report

Static analysis result for SHA-256 bddf310df4158b6e…

MALICIOUS

PDF

72.0 KB Created: 2021-03-15 12:09:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b2d9863db258a7a2050b37cfa02f2625 SHA-1: 95fc16a20d50879ad6db9915b64758c8a934b350 SHA-256: bddf310df4158b6e9bf5d340dc73b3d6ce5c1f7416b7cd1015593089692b1163
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/strik?utm_term=sample+job+evaluation+report PDF link annotation
    • http://madoxorijegobe.sportsontheweb.net/regina_olson_hughes_signing_naturally.pdfIn PDF document text
    • http://mmamba.ru/73838444740wyiaz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376598/normal_5fe4cadd713b4.pdfIn PDF document text
    • https://cdn.sqhk.co/mamevugixej/5Dge1jj/xizow.pdfIn PDF document text
    • http://bumawusuka.mypressonline.com/philosophy_of_social_science_degree.pdfIn PDF document text
    • https://cdn.sqhk.co/jivonaxadu/jg59Ggg/22767573364.pdfIn PDF document text
    • http://reawolt.online/kapiziwabinezaserusiraw3uj4.pdfIn PDF document text
    • https://cdn.sqhk.co/vadezewe/8iggigd/font_keyboard_cool_fonts.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413714/normal_5fc62ffef24fa.pdfIn PDF document text
    • http://crysety.xyz/survival_gear_list_for_carkd61m.pdfIn PDF document text
    • https://cdn.sqhk.co/baresupujar/EoYjb24/mod_game_overdrive_ninja_shadow_revenge.pdfIn PDF document text
    • http://nanonewe.scienceontheweb.net/52030687409.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457560/normal_5ffcbbe6034dd.pdfIn PDF document text
    • http://vifezitenof.getenjoyment.net/21632508832.pdfIn PDF document text
    • https://cdn.sqhk.co/doginifa/8igibbc/message_tones_for_iphone.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kubafezin/lagu_apink_luv_dance_practice.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/marketing_research_ppt_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/auto_electrician_tools.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/87569094746.pdfIn PDF document text
    • http://xomapagovujux.atwebpages.com/babok_version_3_free_download.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_off0000dfa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA9 5168 bytes
SHA-256: 309e64ff09743487e0588569da2ae737654b5953fa85a14ed2f3bc799bb6b22a
font_01_sfnt_off0000f12a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF12A 10260 bytes
SHA-256: 3594e069867e4b1d6137a75721da62e7d93dcad9f89dbd3108909f6fba2de980

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