Malicious PDF — malware analysis report

Static analysis result for SHA-256 275cba53ac1aadcc…

MALICIOUS

PDF

81.1 KB Created: 2020-12-04 13:40:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 208d6b9331065ccd037ea5a47acba777 SHA-1: 96ece7591539e39f34b31a44c30a966320089c4d SHA-256: 275cba53ac1aadcc463b6159fc21957a9dcf5e44237d4e984bede7de9fd6e80c
96 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 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 0.9997

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/strik?utm_term=altura+credit+union+holiday+hours PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413474/normal_5faad1debc5e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470209/normal_5fb29988347fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368746/normal_5f9900be68edd.pdfIn PDF document text
    • 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://static1.squarespace.com/static/5fc4c1dc0b6b03258f4e1bb4/t/5fc6eb4defc65c5b7a3490e9/1606871888519/video_status_for_hello_status_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf977d334513fae41cb57/1606220152144/how_to_get_seeds_in_minecraft_without_grass.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfe7e212facd59cea75dab/t/5fc148b23570fb44d131fb31/1606502580463/remote_control_fan_boat.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10ec41c8c74131432ae85/t/5fc6d8d3a3696915e2130a82/1606867156391/real_driving_sim_apk_android_1.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d2f2d26ff1194f734ddd/t/5fc101e11972c46e3cc24f5e/1606484450041/what_does_elar_stand_for.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b582d177-6eca-4f50-8b95-cab477715161/wenabobosimulimuza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/928d5bd7-890f-4dce-8650-67075f6bc7b5/nukekebigokizoni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0942017e-b345-4aaf-ab46-2f05533d57bc/14567744188.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6941c1452f90b7f0c5d7b/t/5fc834de217b3604edd3d11d/1606956255543/51132034360.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ae339d2-7f56-493c-bcb6-c0a487e80d90/arrival_2016_movie_download_in_hindi_480p.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_off0000f3e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E3 5000 bytes
SHA-256: f38f3c6d54185504110940f21638b437c0d89856dea7ccccba00676bcb6dbe19
font_01_sfnt_off000104d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104D2 10732 bytes
SHA-256: 157096969c8a05837fe3fa5749618372ca07661bbcd4867c4537c2e28a219dd2
font_02_sfnt_off0001294a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1294A 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

Open this report in the interactive analyzer, or submit your own file for analysis.