Malicious PDF — malware analysis report

Static analysis result for SHA-256 400c954c7bcfc358…

MALICIOUS

PDF

77.4 KB Created: 2021-03-22 23:40:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 3beeee2bbe4566d6b0a8e4ad79ccf885 SHA-1: 5538316bef776ab378f8de90fc6157a297308161 SHA-256: 400c954c7bcfc35827708ae1663583970827c949dc459536ac491dbdb0284442
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 0.9996

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://bologen.ru/award?keyword=autocad+inventor+fusion+2020+tutorial+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4402507/normal_6005ad5db72a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408170/normal_6039bc8899705.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481064/normal_5fd61975f273e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383452/normal_5fd86ebe0fd80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366676/normal_5fd96924e085b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427273/normal_5feb2d978a8ee.pdfIn PDF document text
    • http://birixuxewazotaz.mywebcommunity.org/61231243970.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478703/normal_60041275d2782.pdfIn PDF document text
    • http://vemelaribox.getenjoyment.net/58321637828.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c67d6d17-3b27-4f85-b53c-48e2341d9d69/primerica_training_classes.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/matozoxalevejenoterowel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af2bca18-b584-4edf-b935-fd8d49e6543b/lujeruwedaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2870327a-0a0f-425f-a1e4-c63252161f23/cricut_gypsy_wont_turn_on.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a44b6a1d-7191-4cab-aa99-7bebd43cb552/what_is_wordpress_hosting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6d5542e-0b74-4c57-a18a-b46bfde1b607/toro_6.5_hp_gts_lawn_mower.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/676dc67e-229a-4c04-89e1-e0ad347f67c6/bibakokuvasoful.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/980ed8f2-246e-4393-86df-b9d8df3a619a/35914836748.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/fly_fishers_guide_to_northern_california.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acac3ad6-9be3-4e38-922e-1d8a08045f86/38475684045.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/chori_chori_film_song_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/420fe092-9f0d-4eaf-96b6-4dd847860b0b/61929325605.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC53 4032 bytes
SHA-256: 9440f71eefa4f59c7a71b16fb0b9f65724f2db68f71ee41650680a98f027c4b0
font_01_sfnt_off0000eac4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC4 5472 bytes
SHA-256: 76992a9db68f281b5bc47e7782a56b8ef955afa6c5f545a2bb20d5a212fa309a
font_02_sfnt_off0000fd7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD7A 12444 bytes
SHA-256: b1e3461c0ad397a0565deca62e65f8525a31e250731cfa2d32829aa690a8503c

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