Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3cdb0c9088aa765…

MALICIOUS

PDF

166.2 KB Created: 2021-02-10 00:53:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4178e8141d8e315b96b43278fcf7c8f5 SHA-1: 539514abb3e346115272c996c805be3307178d5b SHA-256: f3cdb0c9088aa7653603676a3877629147ddb9a70690725d50a304a18e1d6961
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 0.9983

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/aws?utm_term=ultraman+belial+form PDF link annotation
    • http://dehydratedoriginalgoodness.com/241854570838fo7l.pdfIn PDF document text
    • http://reduslimitalia.website/extract_annotationslhir1.pdfIn PDF document text
    • https://cdn.sqhk.co/murafabu/hfig0ie/12821564729.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426813/normal_5fdfcf768f3a7.pdfIn PDF document text
    • http://verification-help.business/565601722952t2im.pdfIn PDF document text
    • https://cdn.sqhk.co/mifigatira/jjh8snI/34678627870.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495855/normal_5fcf2b3e757cd.pdfIn PDF document text
    • http://maska-respirator.com/film_adolescence_medley_sub_indo2l5td.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420468/normal_600e5f56d78e2.pdfIn PDF document text
    • https://cdn.sqhk.co/dediwifime/k9heMhd/tractor_supply_go_kart_belt.pdfIn PDF document text
    • http://housefashion.ru/vibixuxukabubilijev3uuqm.pdfIn PDF document text
    • https://cdn.sqhk.co/danopefasuf/iGibhfV/fruit_cutter_game_online.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/pegebunov/96557448522.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/45418567354.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/vovexowebijowu.pdfIn PDF document text
    • http://rewelopax.rf.gd/ivizion_bill_acceptor_manual.pdfIn PDF document text
    • http://molutuganum.epizy.com/sunuketofomubedupizanoji.pdfIn PDF document text
    • http://zusobudem.epizy.com/candy_crush_soda_apkpure.pdfIn PDF document text
    • http://dojopugoput.epizy.com/935206215.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/41502028827.pdfIn PDF document text
    • http://zabusokaruzovi.rf.gd/advantages_of_school_uniforms_debate.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001acb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ACB6 42636 bytes
SHA-256: 6cf92099fff6f31ac2c072cdd0a7c40dd1d8ff7f7885106e834a5947a015ad34
font_01_sfnt_off00022e12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22E12 4868 bytes
SHA-256: c5f5d9aae4149b1b2860b199a1dba1a182a91827d52b89103f0e1665ea04d180
font_02_sfnt_off00023e89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23E89 17872 bytes
SHA-256: 4b8b3a24ed3b7f5ac34d8b4a5054da162d87474fe2ae5b4981ecf81fc1b156b9
font_03_sfnt_off00027561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27561 16132 bytes
SHA-256: 06d84a79787f49517cba9647d12dd77c675544b9e46e70dbd0c3ec2b8d2a160e

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