Malicious PDF — malware analysis report

Static analysis result for SHA-256 86296c7734d00056…

MALICIOUS

PDF

94.5 KB Created: 2020-12-16 19:02:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 1cf2260306a6d0a0912f4551366daba8 SHA-1: 896fe30ea4f88ed5a5e6bbe23f48a34f1616b033 SHA-256: 86296c7734d0005697dc1f9e1961065acd6a8abf977013796d821419cd16a704
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, appears to reference 'Bein sport ma� izle apk', suggesting a lure related to sports streaming, and the heuristic SE_PASSWORD_ARCHIVE_LURE indicates it may be part of a password-protected archive delivery chain. The ClamAV detection further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://gettraff.ru/aws?utm_term=bein+sport+ma%25C3%25A7+izle+apk In PDF document text
    • https://static.s123-cdn-static.com/uploads/4369158/normal_5fd05bec2ee62.pdfIn PDF document text
    • https://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/susimumugevapoxo.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/b0566884.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459341/normal_5fce57067a4bf.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/4b36aaed-a9c9-4075-a18c-454a3b151251/pdf_communication_sex_and_money.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/jixekibenara.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10dd611f6a419848684c6/t/5fce494da87f9f1b1907a9da/1607354708407/47540184028.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/tenapusenewosokujaba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ec909ab-3f95-4437-b2ef-646e421cb6f5/pegap.pdfIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/limenutojaxarugibupikom.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e28e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28E 6744 bytes
SHA-256: 0eac1552a6a0cc8d6d43e14f5c157d052ff2bf21460314f67a2c213e0a454e63
font_01_sfnt_off0000f344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF344 5056 bytes
SHA-256: b5fda49bf6b28f28dc8a77845c24d806f1c7d2b217a54bf9a4e492fd359a071a
font_02_sfnt_off00010513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10513 5308 bytes
SHA-256: 270f3b176322c7d247a4dbcc7b560584a324518814bf8c59f82638a58a7fecfa
font_03_sfnt_off00011707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11707 2116 bytes
SHA-256: 991f7ef292b59849fa1804c361c52a6255426db797fbcab3b5d31d1f34ee76c9
font_04_sfnt_off000120b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120B2 16664 bytes
SHA-256: 6ee4098c34cf1dca974a8d0c7780ca7413249377f622cfd4876616d59db89b9b
font_05_sfnt_off000150d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150D6 17356 bytes
SHA-256: ebc64335c8590dca4efa5c4b986863d35ab87ec4641b603b3afd93c10f7133a2

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