Malicious PDF — malware analysis report

Static analysis result for SHA-256 62d2738d83fe56fb…

MALICIOUS

PDF

72.5 KB Created: 2021-03-04 01:46:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 5f45e74e902bfc70214c55b985450df5 SHA-1: 1cf45e0a24fea0f892d918af580ff67f2739b1f1 SHA-256: 62d2738d83fe56fb941c588b9ca321539ae3e1991070121ac858eb4bd9d2e01b
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://pelibifir.ru/123?utm_term=nextbook+8+intel-powered+windows+10+tablet+pc+specs PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4424341/normal_602a1e60295ec.pdfIn PDF document text
    • https://cdn.sqhk.co/tuforalogidu/jfJIRgc/talking_tom_bubble_shooter_mod_hack_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kavonalitego/nclCigC/50716772501.pdfIn PDF document text
    • https://cdn.sqhk.co/lisakopew/fOhaidg/21070846922.pdfIn PDF document text
    • https://cdn.sqhk.co/gisefezuzif/6jf0CMk/14491291889.pdfIn PDF document text
    • https://cdn.sqhk.co/godezixibufo/hgcR5hb/international_business_definition_investopedia.pdfIn PDF document text
    • https://cdn.sqhk.co/dudumadopole/c5jjha6/ivar_the_boneless_hairstyles.pdfIn PDF document text
    • http://zuxekagapefe.mygamesonline.org/oracle_12c_download_32_bit_client.pdfIn PDF document text
    • http://bixaxivajujojar.mypressonline.com/how_much_does_a_ps3_controller_cost_at_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/nebafori/ieImspF/rocketball_championship_cup_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/poladejug/jhfxhiB/vosolatedavivelonaj.pdfIn PDF document text
    • http://kokolonesafu.getenjoyment.net/what_does_knowledge_economy_mean_in_english.pdfIn PDF document text
    • https://cdn.sqhk.co/loganidob/ehjaSyD/saluk.pdfIn PDF document text
    • https://cdn.sqhk.co/nuwuzasemifo/iihiehh/total_destruction_project_arrhythmia.pdfIn PDF document text
    • https://cdn.sqhk.co/moserusoba/lNaIgjX/cat_goes_fishing_2019_free_mac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pefimubis.myartsonline.com/sesijotawopojabaxew.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_off0000db3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB3C 5820 bytes
SHA-256: 53f8ed632785238e17d130ae59bf39a3edbe19be04963011ec8c6fcc7618225f
font_01_sfnt_off0000ef42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF42 11032 bytes
SHA-256: 872bfc463521ae188e382625858494dd0bb182638e200597231f7bb62a0825a5

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