Malicious PDF — malware analysis report

Static analysis result for SHA-256 08ac4766da8dfe94…

MALICIOUS

PDF

86.0 KB Created: 2021-03-22 13:25:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1f2f0f308900af8eab584f400c148651 SHA-1: 23ec74689ddd75c4cdd156c1054230bbf3716718 SHA-256: 08ac4766da8dfe94ea7619c7dd64c002476a840def2b7b02eb22906e5b1b008d
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. The document body and embedded URLs suggest a lure related to downloading software, specifically 'spotify premium apk mega 2020', which is a common tactic for phishing or malware distribution. The presence of external URIs further supports the download or redirection aspect of the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://kuzutuzo.ru/wix?keyword=spotify+premium+apk+mega+2020
    • http://fujepopini.22web.org/eosinophilic_esophagitis_guidelines_2018.pdf
    • http://remont-pc.website/corona_23_dk_kerosene_heater_partszincs.pdf
    • https://vesepuzimimewij.weebly.com/uploads/1/3/0/7/130776402/bedimuk_dojaxozelagex_jegin_duxexitofan.pdf
    • http://reduslimitaly-official.website/zedufuzizavujoumx44.pdf
    • https://jedexapotup.weebly.com/uploads/1/3/4/4/134472831/3235114.pdf
    • https://tovejuzu.weebly.com/uploads/1/3/5/3/135398771/5440964.pdf
    • http://ses-paypal.com/wegipoxokakaturukuxutof3z09g.pdf
    • http://trastqort.online/basf_se_financial_report9w1a1.pdf
    • http://gapewikegolunop.iblogger.org/79080220153.pdf
    • http://bebobez.22web.org/bhartiya_sanskriti_gyan_pariksha_question_paper.pdf
    • https://vomizovuzib.weebly.com/uploads/1/3/1/6/131637161/zosal.pdf
    • https://jelonuzekuxenu.weebly.com/uploads/1/3/2/8/132814084/6018565.pdf
    • http://my-credit.info/how_to_setup_hp_deskjet_2620styze.pdf
    • https://cdn-cms.f-static.net/uploads/4410443/normal_6045f9341f48e.pdf
    • https://cdn-cms.f-static.net/uploads/4475989/normal_602189324e900.pdf
    • http://xititarosoki.iblogger.org/towonikejoga.pdf
    • https://static.s123-cdn-static.com/uploads/4463266/normal_5fe3fab781410.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://danetuxu.rf.gd/ejemplos_de_auditoria_fiscal.pdf
    • http://zaleponijodo.epizy.com/toefl_itp_listening_practice_test_with_answers.pdf
    • http://giwofigu.epizy.com/wulejulime.pdf
    • http://xogowiv.epizy.com/what_is_simbas_sons_name_in_the_lion_guard.pdf
    • http://vimonaker.epizy.com/ungli_pakad_kar_chalna_sikhaya_song.pdf
    • http://filopatoj.rf.gd/how_to_learn_art.pdf
    • http://zajegugolex.epizy.com/wavasobuji.pdf
    • http://delenujafoxa.rf.gd/75573650876.pdf
    • http://xojesulelu.rf.gd/fovagofagufiforisozowitog.pdf
    • http://kisidop.rf.gd/73024144471.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_off00010d91.bin
3a7d03d2f91508adec8183fb5c54088db0fa4410fa67d7a8e8c3b86049b376f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D91 5556 bytes
font_01_sfnt_off00012070.bin
50b87ad551ded335fac0a16292b365cf2f8651c2afc4e5913f26f57324e6d973		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12070 12328 bytes

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