Malicious PDF — malware analysis report

Static analysis result for SHA-256 8407662f4b982931…

MALICIOUS

PDF

70.1 KB Created: 2020-11-10 06:48:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 335b3275539d2af2e6e81bf686a67b6b SHA-1: 14906ff529257792b510a22960e933448817deaf SHA-256: 8407662f4b98293143eba83382d885c7ad302fc99e7272235493d5c373cf26ff
96 Risk Score

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 0.9998

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://traffking.ru/123?keyword=toyota+corolla+2015+manual+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443576/normal_5fa6359a0074a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383800/normal_5f9efbb70e053.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387233/normal_5f9b150cd734f.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/5ec08b7f-eade-4012-8572-cdd5e9e44d0c/78669571493.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2c76939-12d7-4122-92a4-a8c6113f2c2b/sotuzunapinupizorira.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ab502ae-67c0-4203-afde-10525b3f25dc/41512757916.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af0f589f-0654-4c9c-b69a-bfff289e6391/93048219844.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/803433d1-7330-48b8-b747-b7b14c7b8f7e/bad_boy.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/essential_idioms_in_english_phrasal_verbs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed6406cd-3913-4d03-92f0-adbea2c39c5f/vampire_diaries_tyler_dies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99cf6dd1-acf0-4dcc-9860-31504fc9f8fb/fexavevojivitonixozido.pdfIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/81113153508.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/paderno_spiralizer_instruction_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4f748fe-b367-49f2-956a-e52a0f24a2db/xufizuduvigus.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_off0000d264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD264 5624 bytes
SHA-256: 1fdef96df7585585221a912c6e2020e7beec5ddcb44704bdf54ab951831e7092
font_01_sfnt_off0000e583.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE583 11256 bytes
SHA-256: 02eb7747c58524ebc7502f8e46ed273d0e4a4af9b989b4c3139e1d170c213942