Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14fe3ad9cad064d…

MALICIOUS

PDF

212.5 KB Created: 2020-12-15 04:52:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 8395df08ccd52ff021cf71fd3d0706b4 SHA-1: e38aa10b4663cdfa51665c364265aee57df743c4 SHA-256: f14fe3ad9cad064dc7373dc0543851380c78fff16d6d7e647cf003dc9acf66f6
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is a strong indicator of phishing or malware distribution. The ML classifier and ClamAV detection further support the malicious nature of this file. Although no scripts were explicitly extracted, the PDF structure and embedded URL suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9888

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://ggtraff.ru/wb?keyword=automotive%20spice%20guidelines%20%E6%97%A5%E6%9C%AC%E8%AA%9E In PDF document text
    • https://cdn-cms.f-static.net/uploads/4417675/normal_5fb8f9ce2e02d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408996/normal_5fbd9a3fb62ec.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/gavurufomixabu.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/da5b392d-cf75-4236-b837-35a2a67db486/86132061592.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8379bdf-38b4-4c7c-9e43-8d78ee9e9d49/5911693945.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e33040f4-d88e-480a-ba05-149e2c2b04d3/tabela_seno_cosseno_tangente_ciclo_trigonometrico.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da94c72a-5df6-4fb6-88c1-3bd16160631d/nelimel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9504f855-7265-41a7-8e1f-d9a56873db31/gowaximutijilesipib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/149bb55e-c47d-4ee8-9278-d1bc76f54933/simabatipod.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc101809698b02c7f2130ce/t/5fc551055147b14804e21ef2/1606766853842/manual_battery_charger_wheeled.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37eaa025-dc72-4163-b652-8fab32f33f8e/test_of_the_twins.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c08c872-9ddf-4109-ac5b-d6250ad92c04/54359850357.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/670dd920-aa88-4cec-97f8-ad84c12dc717/the_social_animal_11th_edition.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

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB64 170252 bytes
SHA-256: acf62155fabd6938a3063e09b2cefe73ef477c4e68cc3486bb8604a8955b8335
font_01_sfnt_off0002e8b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8B7 3344 bytes
SHA-256: 6252abef436c43329ddc2561f62695eac4b8d2fcd33439a081054be5b9077b5a
font_02_sfnt_off0002f49a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F49A 5136 bytes
SHA-256: e05678a706c59593366463cb6d1bfd4e9274b5d436058b0f4733bb533a58a878
font_03_sfnt_off00030610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30610 10664 bytes
SHA-256: 5f3af344c1b0809fa23c11517532b1af77279737dd97f717a482a6beedbd2280
font_04_sfnt_off00032ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32AE3 16332 bytes
SHA-256: ab09944c8b7185aac59713f6b3830fd664adc12f601ab2fdffc75c0fea50ebc6

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