Malicious PDF — malware analysis report

Static analysis result for SHA-256 7da8e154f6039d47…

MALICIOUS

PDF

74.6 KB Created: 2021-02-17 12:31:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: fb9b5254a1a3d4cb8ca2711fd1bc705d SHA-1: 3929bfe96bc3df52bad019491b7ae4e456dcf406 SHA-256: 7da8e154f6039d47544c1fbd147d50086160444f559a076e4af163add2920d52
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating maliciousness. It contains an embedded URI pointing to 'bologen.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to search results, further supporting a phishing or malicious download attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/strik?utm_term=xbox+360+controller+charger+cable+not+lighting+up PDF link annotation
    • https://cdn.sqhk.co/mitugejaxel/id8nQof/94141276087.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/ghVijhb/youtube_roblox_super_hero_tycoon_code.pdfIn PDF document text
    • https://cdn.sqhk.co/roduxokixuzi/igAggAH/cover_orange_1_1-_26.pdfIn PDF document text
    • https://cdn.sqhk.co/vegubefeno/jagc580/88038682761.pdfIn PDF document text
    • https://cdn.sqhk.co/gupikekarobo/hapnheE/sutuwotuvu.pdfIn PDF document text
    • https://cdn.sqhk.co/xasexuwosul/Rdjfiee/rasex.pdfIn PDF document text
    • https://cdn.sqhk.co/suxupijisajo/jjNjaKx/espn_mlb_scores_dodgers.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/hhjduje/3d_sound_effects_free_download_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/kawiwitifa/hege7he/pool_table_pocket_reducers_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/jdgiicQ/53357753810.pdfIn PDF document text
    • http://cmbespaceclient.xyz/buribomagebotivubuwazaucsx4.pdfIn PDF document text
    • https://cdn.sqhk.co/fakomuse/hg6icic/pomujogutopeter.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/2hfbnjg/my_taxi_customer_care_number.pdfIn PDF document text
    • https://cdn.sqhk.co/viwiratoposu/08hahaz/pivevomatadotetinaxof.pdfIn PDF document text
    • https://cdn.sqhk.co/posaleren/ggA12jd/islanders_vs_lightning_game_3.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
    • 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_off0000d768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD768 5544 bytes
SHA-256: 007204621e15a84f9d71bb0da2fc3f0286748abc14d3ff30de029666e4c59ef1
font_01_sfnt_off0000ea25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA25 10732 bytes
SHA-256: 9f0ba713dbbfabd6b33ce6e6571f980a698614977cccda2a2e976d052f8ce719
font_02_sfnt_off00010ed4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ED4 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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