Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f5125c149abcdaf…

MALICIOUS

PDF

77.0 KB Created: 2021-04-02 00:49:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 2e39a428ec4773311c3e584240bc27fa SHA-1: bfda5d5325741bef3781b482aa95b5b5eb16fcab SHA-256: 6f5125c149abcdaf0db8d1e847b1b7c5cdab6f6176175004db6c81f3b52f1bb1
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, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, mezovuduw.ru, which is likely used for phishing or to serve a secondary payload. The document body, though partially corrupted, suggests a lure related to 'public administration definition'. No scripts were extracted, but the presence of external URLs and the overall detection profile strongly suggest a phishing or malware distribution attempt.

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://mezovuduw.ru/award?keyword=gestion+publica+definicion+pdf PDF link annotation
    • http://goligofalu.medianewsonline.com/wusanelejidozetujapepufo.pdfIn PDF document text
    • http://gufurebu.medianewsonline.com/kenarudozu.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/how_to_change_ford_focus_2011_key_battery.pdfIn PDF document text
    • https://cdn.sqhk.co/purorelaz/ihjjhiG/play_spy_fox_online_free_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/fogobewataja/1DRP7ks/offline_video_player_for_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/rumomezojeku/abZggia/laser_quest_spokane.pdfIn PDF document text
    • https://cdn.sqhk.co/jagibuvat/bFMeWdL/63073713634.pdfIn PDF document text
    • http://mowogaw.mypressonline.com/98937018881.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/ZibDbgd/angry_gun_l119a2_suppressor.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwozavenu/gkghiaJ/xabiwalopezivexego.pdfIn PDF document text
    • https://cdn.sqhk.co/nitumatemi/YAVgiij/hot_springs_story_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/iiajhTd/luxefozipe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kovilowab/60553095882.pdfIn PDF document text
    • http://xixivozute.myartsonline.com/fazewexejezumexilirepi.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/what_is_management_information_systems_jobs.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/how_do_you_change_a_g_shock_battery.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/warlock_5e_guide_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/84871689719.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/25614995335.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/autocad_macros.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_off0000eccd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCD 5224 bytes
SHA-256: 73be0a184f46d5a59f55843bab13e4826988d80bc5838aa38c7de537ae882706
font_01_sfnt_off0000fea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA8 12116 bytes
SHA-256: 7f422fac642d03962a36d96a16b0fb8fcd4f3a17f3b0b3082e39631904b29499

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