Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1a848cbdafaae47…

MALICIOUS

PDF

76.9 KB Created: 2021-03-23 21:54:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8e9feae9a4861f058132fe913f4b0f94 SHA-1: 81964449d877206127a448692335feef74133a19 SHA-256: f1a848cbdafaae4722aa82b4fc63d0ef744ff48611e1a609c74a22e7ff4a0307
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 0.9997

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://fokemale.ru/wix?keyword=guide+gear+hunting+clothing PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458840/normal_605808eaa1762.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368955/normal_5ff17ab856029.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408330/normal_5fed41f513532.pdfIn PDF document text
    • https://cdn.sqhk.co/fowipovoji/ggQibso/kipamobotinarirafot.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456372/normal_6001d03b01701.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381340/normal_5fd8a23e0dc80.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/hajghjf/45217069370.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372673/normal_6046a50c93c25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452599/normal_5fd17825cdc08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444877/normal_5fd1fd04a1e33.pdfIn PDF document text
    • http://avtoshtorki.shop/zixusidexifav5gqn0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484359/normal_5feafb164029e.pdfIn PDF document text
    • https://cdn.sqhk.co/bolomekurufe/iijgXhc/history_of_east_asia_book.pdfIn PDF document text
    • http://taptopbot.com/jeepers_creepers_1_full_movie_downloadg1ejx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://2b08c346-38d8-4763-b559-bb9d4fff2313.filesusr.com/ugd/40c9d6_392ee778de2844e88bac3d60578bb3cf.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/36b9bb8d-5f80-4f8d-9794-b90315faaa48/autocad_3d_commands_for_civil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80058f8c-e9eb-4a14-9cc3-b523c51f809d/sherlock_holmes_the_hound_of_the_baskervilles_summary_by_chapter.pdfIn PDF document text
    • https://14535e1a-360a-4d01-a655-fa33e115c80e.filesusr.com/ugd/b222ea_c9cbc48bf63645398865c3ca57f4a169.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/532d1d72-7418-420d-9b06-fc122dbbc31d/72264607063.pdfIn PDF document text
    • https://18cb0a1d-3822-48a5-9ca0-56465202bc9b.filesusr.com/ugd/96564c_b55f87ae1ccd4d89a5e71ea17cce0089.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f6b0894-a76f-4825-a967-011a9a56f978/lukuzovozexezumumalabuzi.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_off0000f224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF224 5052 bytes
SHA-256: a170d7da0f8d2fd5834636875960e143abf7ac8deedd84e2330ea9c27b17ccf2
font_01_sfnt_off00010350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10350 10252 bytes
SHA-256: 5a53d2b7138ab95b9157f059dc067a6c32c16f4d17cde75ce6fe37730618380e

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