Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8d915f97faba29d…

MALICIOUS

PDF

77.6 KB Created: 2021-02-23 09:32:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e1a99c062b4f752b7915f80d11a12f35 SHA-1: 90733d9bd480be66ecc6b77b324a416c1bd73ab0 SHA-256: d8d915f97faba29d07ef1a1f013003ecef10bc8259d61c116c05e339cb4bb1fb
96 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 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://druttle.ru/strik?utm_term=roger+kamien+music+an+appreciation+12th+edition+pdf PDF link annotation
    • https://cdn.sqhk.co/tiruxugajo/XidSyPD/ramudejezusid.pdfIn PDF document text
    • https://cdn.sqhk.co/gorisaburo/hcQLha5/1106186483.pdfIn PDF document text
    • https://cdn.sqhk.co/visukodo/cpiAsgg/flat_pack_cubby_house_kit.pdfIn PDF document text
    • http://ludivabuka.iblogger.org/what_saxon_math_for_7th_grade.pdfIn PDF document text
    • https://cdn.sqhk.co/kosadara/zhdy1ge/best_alarm_clock_radio_app.pdfIn PDF document text
    • https://cdn.sqhk.co/sewizefaxiki/faKihHO/51195959207.pdfIn PDF document text
    • https://cdn.sqhk.co/wuluzajiroz/b8eHXjb/grandparent_christmas_gifts_diy.pdfIn PDF document text
    • https://cdn.sqhk.co/tazifawixax/bUbgAYL/ruwap.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/jhaidgc/music_quiz_90s_with_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/dEihgd0/zizorosagibodolatok.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/vekodupiwarobi/garmin_epix_price.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/naxotovanaler.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/what_is_the_0_60_time_for_a_subaru_wrx_sti.pdfIn PDF document text
    • http://zawuzujuw.epizy.com/25488520997.pdfIn PDF document text
    • http://joxepivebafugig.epizy.com/fonaj.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/80162961115.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_off0000f10f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10F 5792 bytes
SHA-256: ed2c0a454d30fee50a5d8de80fb9e2909e6eb7182132663c603d57793850d385
font_01_sfnt_off000104b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B0 10612 bytes
SHA-256: 27652769328c263de9db2c438338e78986f9ae15b238c44c37fe823754eb3d3f

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