Malicious PDF — malware analysis report

Static analysis result for SHA-256 001f67dc1d9c11cd…

MALICIOUS

PDF

71.4 KB Created: 2020-11-28 02:22:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 53a97f39502c7f3a090a543131c88396 SHA-1: f353f3d0ec139c9b84f2cae57974b973be8d2807 SHA-256: 001f67dc1d9c11cdb089054baad4a45005384c1ead24866840c4dc5454eddd9d
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, 'https://trafftec.ru/aws?utm_term=aruvam+movie++isaimini+tamil', suggests a phishing or malware distribution lure, disguised as a movie search result. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafftec.ru/aws?utm_term=aruvam+movie++isaimini+tamil PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e524dcf-dbbc-4ea3-8a87-d9fd63a9601b/70861503590.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/battlestations_midway_japanese_campaign.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/870024be-c023-4f32-babf-bc7f94f4b20f/xopibewoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e82a1e4-ef92-4add-a957-98e5233b6c8e/75648391191.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d451b4cc-f8cd-46c6-9cec-8260ddae477b/pisoretixozatoxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73de9f72-cdb7-49d4-82c1-99d38bc23332/rupelazalejaxubaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79dd1ffa-7f08-44f1-8149-0898f5444f28/fimoxanatile.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/77512363289.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bc4a1ff-9509-44c2-a2cf-03ef904ddd0c/acids_bases_and_salts_class_10_notes_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/pirates_part_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ed4fa6d-15d0-4be1-a1cb-c5fcc937fef0/jefuratitoxenezipulex.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0EC 4880 bytes
SHA-256: 90a97a5500d8a07679ff106d00eb683f7b9c6f54f178fcc003fadb6e471ea188
font_01_sfnt_off0000e165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE165 1936 bytes
SHA-256: 73983ccd477f0e4c07634362c0f9f13a23cea415a26bff37f7f125d59a681190
font_02_sfnt_off0000eaa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA8 11160 bytes
SHA-256: 5c7f7505f63696845a8a1a815c38c081349d842b90ce2848d2727974fb2d8833

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