Malicious PDF — malware analysis report

Static analysis result for SHA-256 2932b3dde39a5bc1…

MALICIOUS

PDF

77.8 KB Created: 2021-05-19 14:49:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1cb0cd1e18114f2d6099a51ce5a76e2d SHA-1: c5c0c93d02c3381fc51385b407cc74fac6466eee SHA-256: 2932b3dde39a5bc10d6ee025cfc415a6558435f6c12e19cf9cdcebf145a8ffdc
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-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/strik?utm_term=best+app+to+earn+real+money+in+india PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4479474/normal_600b43eb0b145.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416151/normal_6068355f68ec9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490132/normal_6021a87f235ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503309/normal_6043351aac6fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423696/normal_60208c010240a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394066/normal_5fdc210717247.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409098/normal_5ffc1b018d8e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473031/normal_6001ea7d9d68a.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/a60498a8-a873-4dfe-9d3c-d36f6a99739f/84217376936.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/cicatrices_regulo_caro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3152c8ec-9338-4b67-aeb9-cc009bea8259/how_to_learn_sap_analytics_cloud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c15dc55-a994-4e1a-a41b-c76abfa9bd3f/safety_first_infant_car_seat_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73b7decd-76b3-4285-9adb-aacc4fbe32ab/the_things_we_carried_chapter_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f09975b-c727-4374-b3b6-fe355fe4e05f/christian_worship_supplement.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/20662748449.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36d27b58-682d-4545-b99a-578ca5a7b44f/lincoln_electric_weld_pak_hd_180.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/restore_dell_pc_to_factory_settings.pdfIn PDF document text
    • https://s3.amazonaws.com/jotogorurekuro/what_should_i_look_for_when_buying_a_small_business.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68daf3fd-8c98-41ef-b8aa-b20b54960a03/how_to_sub_on_twitch_with_amazon_prime_on_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/7418919181.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_off0000f1c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C1 5256 bytes
SHA-256: 4b8b00b83d2408bfb90c94af8ccc7203890511d96945e40c7ba8cca1ea2ba8d8
font_01_sfnt_off00010397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10397 10792 bytes
SHA-256: 9db18902c10e3823e852228a0c2465665e1e27e88aac2a2dd043b05bb0ca1907

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