Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6b017f5e153fb77…

MALICIOUS

PDF

76.6 KB Created: 2021-06-02 22:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eb839946ec90a0d3567b020cff512a58 SHA-1: b6c96dc46bb45b3811c64c7195503ac0277737c6 SHA-256: f6b017f5e153fb7724a24db2e59595d2192f813105c683114e030d45dbd10f21
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to 'The Game of Thrones', suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://huntic.ru/pbw?utm_term=the+game+of+thrones+season+1+episode+4
    • https://static.s123-cdn-static.com/uploads/4452608/normal_5fcbea01e4f06.pdf
    • https://static.s123-cdn-static.com/uploads/4374703/normal_5fc94f93f2514.pdf
    • https://cdn-cms.f-static.net/uploads/4465924/normal_6060f6ccf0a9b.pdf
    • https://static.s123-cdn-static.com/uploads/4379476/normal_5fca2a99337d6.pdf
    • https://cdn-cms.f-static.net/uploads/4481515/normal_602214355627e.pdf
    • https://static.s123-cdn-static-d.com/uploads/4481418/normal_60b1e9525c727.pdf
    • https://cdn-cms.f-static.net/uploads/4381541/normal_5fd1a86368144.pdf
    • https://cdn-cms.f-static.net/uploads/4445531/normal_602f52ce26e8f.pdf
    • https://cdn-cms.f-static.net/uploads/4454822/normal_6009d869a6f21.pdf
    • https://static.s123-cdn-static.com/uploads/4428033/normal_5ff1760385500.pdf
    • https://static.s123-cdn-static.com/uploads/4405185/normal_5fcbfa8aec060.pdf
    • https://cdn-cms.f-static.net/uploads/4393208/normal_603bdf6ac651a.pdf
    • https://cdn-cms.f-static.net/uploads/4486772/normal_603ed10369fab.pdf
    • https://cdn-cms.f-static.net/uploads/4425484/normal_5fd36ee539338.pdf
    • https://cdn-cms.f-static.net/uploads/4403816/normal_606c681be31ba.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/9c6f3b47-c8ca-46f4-9c35-1fbabdeb4e4c/to_kill_a_mockingbird_audiobook_chapter_6.pdf
    • https://uploads.strikinglycdn.com/files/2177dd60-f937-4d02-bce2-758cfc925e7b/what_is_the_best_keto_book_to_buy.pdf
    • https://uploads.strikinglycdn.com/files/73121f5f-b019-4190-beaa-20c9d0eb4d5a/how_much_does_ncaa_14_cost_on_xbox_360.pdf
    • http://jajisaparev.pbworks.com/w/file/fetch/144418398/twrp_3.0_2_apk_download.pdf
    • https://uploads.strikinglycdn.com/files/2c83019f-748c-4cac-bbc6-4a5d06946f68/sharepoint_2013_designer_permissions.pdf
    • http://wozixokumo.pbworks.com/f/60066791209.pdf
    • https://uploads.strikinglycdn.com/files/e8b584c8-18aa-4949-b775-198168ab11a9/how_to_chop_samples_in_garageband_ios.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed82.bin
7088f77c3c89f9cfaafbfb8c1c2c9195d742289e528348e749164ff0bc468b14		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED82 5512 bytes
font_01_sfnt_off00010024.bin
df47a6f63cbe56b42b10ff274902e9a1703bfa54b6fab6c78825f70fff154e56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10024 10716 bytes

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