Malicious PDF — malware analysis report

Static analysis result for SHA-256 80f558bd08781746…

MALICIOUS

PDF

75.7 KB Created: 2020-12-23 00:49:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 731001093eceb6c813d6a320c572eed9 SHA-1: 910848ce86a0f522ab1915315c4883919d732e05 SHA-256: 80f558bd0878174633e4069a21db0991486f8fd00f0ab64a2c816b0d4bc80049
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, trafftec.ru, which is likely used for phishing or to host a malicious payload. The document body, though partially corrupted, includes the title 'Love quotes for him long distance', suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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/strik?utm_term=love+quotes+for+him+long+distance PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/c65e5fba-08d9-48c2-bd4f-0143c6e72aae/valve_setting_on_mgb_1800_engine_for_sale.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5be32116eb00e3c6d2e31/t/5fce3f137ae85b53b2be80a6/1607352085666/police_car_racing_3d_game_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48459856-6bda-4b18-b910-b83a6b0a3331/19354680473.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d90e8ca-fc0d-474e-9cfb-fe48b5da1b3f/70950532364.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41182d4d-8cd1-4bb0-a807-ae40c5cdf565/jevazimesenexoburatemil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29d0b972-3b38-439a-8277-48e0c097611e/dipper_and_mabel_vs_the_future.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48fca7a4-c46b-48cd-8ca0-d3b04d521ea5/lafozubafasuritilakezaved.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98d36a07-1a22-4426-a5e1-e7fde98ac92c/28453994.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/pizidore.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58f70166-869c-489a-a2fc-2bd4c3dcbdd0/27428412435.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_off0000de79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE79 5444 bytes
SHA-256: 85e2773eb3b2bc941265af181bcce7a8698141f3ca91ff7a8bc1ca2ab867e0eb
font_01_sfnt_off0000f0da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0DA 10260 bytes
SHA-256: 63c9dc31b7f7e5af5ad5642d9313ec8ae828f2d9c1d57d80deaa90b2d6b3cff6
font_02_sfnt_off000113bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113BB 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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