Malicious PDF — malware analysis report

Static analysis result for SHA-256 722d244cbb35d383…

MALICIOUS

PDF

75.5 KB Created: 2020-12-09 01:44:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c035d14030f5fe70fbab64b9b27c4eb3 SHA-1: 93aa0dd17477774485c35e0acb365c7a40a689a8 SHA-256: 722d244cbb35d3832795219b4577a3bb89720726277832e7ed3020a68e4713bc
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://trafficel.ru/strik?utm_term=wayside+elementary+school+carrie+maxwell PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408471/normal_5fa8169aa2307.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373997/normal_5f8b4b8466f63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371248/normal_5fb85d13384a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409623/normal_5fa09bf09bef3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393499/normal_5fa8098833384.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/64e19a32-04fd-457a-9a88-5f6c7ca2dec3/gekur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0e8e327-0586-4b91-8770-5c47869470be/70936221702.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57b36870-03c3-4642-826f-6d19478b64aa/99187806563.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc554c4116eb00e3c69664b/t/5fcc90c31e1a4d7de12502c4/1607241930087/bofabajufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bea8f2c3-2c06-4d5f-bf27-42bb680f1d8a/84974500346.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/619c2524-3aeb-46d8-9a28-efa2157b62dc/faxerosadamokesafal.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c25f11f6a41984a6f54c/t/5fc9601d28c68e72b1e73d12/1607032863500/walking_dead_season_7_cast_rosita.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf2d005b099b259a77a339/t/5fd007253308cf4e6fc7372d/1607468837456/21026305408.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d12c3dfdd95b60d4a66f/t/5fc1278ff8cdb769c60cab1f/1606494097637/66257854378.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/022341c9-8ef6-43ad-b3da-6c38625fed0d/whirlpool_duet_sport_washer_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd085872f8b574a0f4d83d/1606223961007/zosenamorolexawari.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 3

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_off0000d240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD240 5452 bytes
SHA-256: 5df33f7703472d5aedbe5d4740fdd5c0cc32783b85ca0e4649a6edf404aa7021
font_01_sfnt_off0000e4c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C1 12040 bytes
SHA-256: 5b8e06703e984615242be2015a7c728bfd33ae40304a345b635807e9400a57b3
font_02_sfnt_off00010bd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BD7 16120 bytes
SHA-256: a892c4e3b202a0c8cbee381f7991bf244299185dbed42c43e1847cf7a402dee5

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