Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ea996f2f4018e45…

MALICIOUS

PDF

81.1 KB Created: 2021-03-10 21:56:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a21eb2d81b66a6c1e922fa4ff29b382 SHA-1: 998b233180d036ea951d8521f990f107b6821470 SHA-256: 4ea996f2f4018e45ba5f858d386c4a5b34c92675078f263359e392037d69eeb1
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URLs, such as https://druttle.ru/wix?keyword=app+beetalk+download+apk, suggest a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are commonly used to host malicious content or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://druttle.ru/wix?keyword=app+beetalk+download+apk
    • http://ideaita.fun/60090989372cdr3g.pdf
    • https://cdn.sqhk.co/kugefiruxat/h4WjdLD/dead_trigger_2_mod_apk_all_weapons_unlocked.pdf
    • https://cdn.sqhk.co/tevimuwijile/Gmid7hf/rome_total_war_barbarian_invasion_religion_guide.pdf
    • https://cdn.sqhk.co/figegixo/hjVgegj/on_my_own_ross_lynch_lyrics_and_chords.pdf
    • http://infokurs.design/nba_2k17_my_career_glitchj7qxy.pdf
    • https://cdn.sqhk.co/gujamozulas/ajbuBgj/17851518067.pdf
    • https://cdn.sqhk.co/rogolafu/gjhfT7x/restaurant_empire_similar_games.pdf
    • http://3gusevshop.website/9872217358539lhd.pdf
    • https://cdn.sqhk.co/tajudozizif/Gmicjb5/15402459054.pdf
    • https://cdn.sqhk.co/numavagoko/Ije5Qij/18044107165.pdf
    • https://cdn.sqhk.co/vovewotutal/bmHcUie/27690355379.pdf
    • https://cdn.sqhk.co/pigexebobe/3jahaf0/apocalypse_cow_liverpool.pdf
    • https://cdn.sqhk.co/farafakilof/cs0jbf3/19416868165.pdf
    • http://ukrinsure.com/project_evaluation_report_templatera0oq.pdf
    • https://cdn.sqhk.co/foseziwate/hgigihh/wutulevibexonijuwo.pdf
    • http://investmag.org/control_system_theory_gtu_bookn1j1r.pdf
    • https://cdn.sqhk.co/fomeluxilim/gjhbifs/hawthorn_bank_jefferson_city_mo_hours.pdf
    • http://dayzcommunity.info/gujonezobekadabuvid79ogq.pdf
    • https://cdn.sqhk.co/raxoxawupej/HLidhcv/stock_market_simulator_game_ios.pdf
    • http://smm-target.ru/samsung_galaxy_grand_prime_plus_price_in_pakistan_2020hs86q.pdf
    • https://cdn.sqhk.co/retesixabe/jbihegc/tutigamikogunukod.pdf
    • http://7lessons.space/dunkin_donuts_turkey_sausage_wake_up_wrap_caloriesjv55s.pdf
    • http://teksol.xyz/161370411619pzxn.pdf
    • https://cdn.sqhk.co/fopikudapom/higQghV/kewumenug.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4e8.bin
fccd1360ee61025252c5c4c41cdd4f0720d6e56e2497286464b787f5382988b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E8 4704 bytes
font_01_sfnt_off000104fb.bin
5e87498824b60a3e2daf5ee78c5b92c040880321af2c047ed78c7b5fede07164		 pdf-font-stream PDF embedded font (sfnt) at offset 0x104FB 10412 bytes
font_02_sfnt_off0001288e.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1288E 4324 bytes

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