Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f374e4942af8289…

MALICIOUS

PDF

76.2 KB Created: 2020-12-18 05:10:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: bd5d11bf4c32e2825a485a89ab3fd52d SHA-1: 1e1026b2343a689cd85a4f40e49129443465fb87 SHA-256: 3f374e4942af82893abcca9ad3f1ab6711037b4ede192188f8bd78f638459a1c
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 0.9994

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://traffnew.ru/strik?utm_term=national+geographic+styleguide+rom PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367007/normal_5f8743ab13b0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366364/normal_5fbbddde43fe2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lokijuronig/53542781384.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6cb9efc603311fbf61aa6/t/5fc77f567995075abde65d6e/1606909786832/sonic_adventure_2_soundtrack_vinyl.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e8580a2757459be2e8d5/t/5fc955161a6ea1418bea16b5/1607030040189/30553850926.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57d1d5687f52b6ba02c69/t/5fc76474efc65c5b7a428ba8/1606902901497/101_games_in_1_ds_rom.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcebdbc8618956c414e0ded/t/5fd6e5ab154d727871ff8ec5/1607919020583/teufel_boomster_user_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf5374f98375720a5dea1/1606284599690/37528819914.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9005b31b-fabf-4ad2-b9dc-e0ff9b493e42/lejaliro.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64cfe12facd59ced1d628/t/5fcd4a8933187724c4ffbd8d/1607289481901/85247309590.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7804cf59f035d0ccd7531/t/5fcab3140e993f2b0657c5a9/1607119637036/67408005400.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4695395-c7d8-4d80-825b-1ef944d5ed6f/88537699755.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd308239b0722912b0841/t/5fc54d33145a8629dc606534/1606765876118/turning_pro_by_steven_pressfield.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 1

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c759.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC759 5440 bytes
SHA-256: 3d7bb93ff6577349d158c63b406dbdc8b3e2f02e3cad85fa9834a8bab2824c40
font_01_sfnt_off0000d9ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AE 10972 bytes
SHA-256: 9cbc53499d575dace7cb25f9de82d98aa614ed6b46f03aedd978edecead4c10a
font_02_sfnt_off0000ff5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF5E 16392 bytes
SHA-256: 72fa6510106468a702f1932fee3c91070ad75b8824695e7de420ec34f3d8d248
font_03_sfnt_off00011500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11500 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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