Malicious PDF — malware analysis report

Static analysis result for SHA-256 e269b18cbb44137c…

MALICIOUS

PDF

216.4 KB Created: 2020-11-11 13:36:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2ae019930309e11409c136c9200b0ad2 SHA-1: 5ad63a11d94b9119ece2be360ee7d20ac185186b SHA-256: e269b18cbb44137ce11a44b4b48dcf52f856288c309f7d4ea8d94c7821f0f59c
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9926

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
  • 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.
  • 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://traffmen.ru/strik?keyword=fpj+ang+probinsyano+march+6+2020+parawiki In PDF document text
    • https://cdn-cms.f-static.net/uploads/4448551/normal_5fa54a449c5f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424400/normal_5fa52014c1052.pdfIn PDF document text
    • https://xivenisulebitok.weebly.com/uploads/1/3/1/3/131378814/fitejipanowudigenamu.pdfIn PDF document text
    • https://mokogexikimowo.weebly.com/uploads/1/3/4/3/134321985/dojud-notapotem-forerezas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457318/normal_5fab0cf45f7f2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/purawuma/list_of_words_ending_in_ology.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/bridge_to_terabithia_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/koora_online_yalla_shoot.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/run_2_unblocked_games_site.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/capitales_des_pays_africains.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/32141966338.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002f43f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F43F 6172 bytes
SHA-256: 6d02d92d118b349c9d6000f0239bbf3a2097d019185c6b774999cf1d310b3193
font_01_sfnt_off00030938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30938 3720 bytes
SHA-256: b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b
font_02_sfnt_off0003149b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3149B 12100 bytes
SHA-256: d40207ab345ffac3a6adc4347116390a05bb36c8d4810f54b057b8af797bcc11
font_03_sfnt_off00033d5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33D5B 16216 bytes
SHA-256: d61c78fed7320cc6ae2ca205b09446b9129d7ce58a45b853b9c341cb816f4125

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