Malicious PDF — malware analysis report

Static analysis result for SHA-256 22f421597521c347…

MALICIOUS

PDF

75.0 KB Created: 2020-12-17 09:10:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 667ca67fec8290af9db48ffe2dc711d4 SHA-1: 199b356a40600d73884b4f3b2ef4886d5bb9d3b4 SHA-256: 22f421597521c34746a1cdc0528a99babc702a9056630612a8b117c52a98c45f
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://trafffi.ru/strik?utm_term=download+geometry+dash+full+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4474471/normal_5fc039ea9fb5f.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/2a255a9f-59d6-44ed-9bb5-c2d885379150/shoreline_math_olympiad_results.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d6eac27-5cb0-48cb-9cea-3facd5d1e46a/home_is_where_the_hate_is_dan_bull.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cc29fd0-ecbb-428c-b169-2a4602cad4c1/danielson_framework_rubric_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/280094ba-7259-47fa-a86a-45212779cf55/41709146614.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5359940f1034a5cc50b70/t/5fc8d270a9f67830ca0467e9/1606996592658/super_tank_rumble_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcebfa3affad1251da488b5/t/5fd5f0d0acac596b0caefcd1/1607856337214/missguided_bandage_midi_dress_zalando.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73464412-2e7f-4f9d-8750-696957db6b72/jirujejatokejixu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8240a7b-fe83-4572-babf-b96634c10405/black_and_decker_smart_battery_charger_manual_2_4_6_amp.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/21424039904.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1771924b06a7eb3033110/t/5fce1c4283d2ac65cc3b71fa/1607343170694/bajidalowo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c550bf71053ccb3114cc/t/5fd0290a5c296e7a686b1d07/1607477514826/12853198328.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ed4f1452f90b7fe57e24/t/5fc567f808845d092440e7b6/1606772729749/pat_sajak_wife_lesly_brown.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_off0000dd89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD89 5712 bytes
SHA-256: 69e1029579449cc99c050fa13fda697cd07735d37df17438d8da172f0cbde9b4
font_01_sfnt_off0000f0ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EF 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000f97c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF97C 11048 bytes
SHA-256: 76c69f88b2d1980133df580ec1fa12eaddf20dde3f354e316c3dca11176bb0ac

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