Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cc13b1975fe2640…

MALICIOUS

PDF

70.3 KB Created: 2021-02-19 00:18:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 573c0d5c0c8e8c0f53055fb9de061d73 SHA-1: 9e7b015c68a3c1682bd7fa411072bf4fbfecdf1a SHA-256: 2cc13b1975fe264090e8b6b79ea16330375203ed0dd549e80d7c7f6a43c1dee8
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains an embedded URI pointing to a suspicious domain, 'baarspo.ru', which is likely intended to host a phishing or malware payload. The document body, though heavily obfuscated, suggests a lure related to popular media to entice users to click the malicious link. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly indicate a phishing or malware distribution 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://baarspo.ru/123?utm_term=miss+peregrine+home+for+peculiar+children+netflix PDF link annotation
    • http://jadurunus.22web.org/metronome_sound_wav.pdfIn PDF document text
    • http://gikisivota.iblogger.org/gta_4_online_dating_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406782/normal_5fc90e4b5f455.pdfIn PDF document text
    • http://kivumokaf.22web.org/40701703592.pdfIn PDF document text
    • http://healthyforczechrepublic.site/56035210182n42x.pdfIn PDF document text
    • http://blekrossi.ru/assassin_s_creed_origins_guided_arrowcas34.pdfIn PDF document text
    • http://figedizizexi.22web.org/wixinobugupuxo.pdfIn PDF document text
    • http://perevod24-card2card.site/race_car_wreck_todaykvjb5.pdfIn PDF document text
    • http://kimagibasip.22web.org/python_3_windows_xp_32_bit.pdfIn PDF document text
    • http://shopwithsale.website/tuvokenalith7eo0.pdfIn PDF document text
    • http://nesibobivugo.iblogger.org/online_english_aptitude_test_with_answers.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/gurowozenupifi/behavioral_based_interview_questions_and_sample_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/52664611563.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/norakuni.pdfIn PDF document text
    • http://wapowidomuf.epizy.com/nom_concret_et_abstrait_exercices.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/caudillos_culturales_de_la_revolucion_mexicana.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/android_studio_install_in_ubuntu_14._04.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_off0000d343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD343 5644 bytes
SHA-256: c68be7afa2e5cd1c8c70b6a0ca98d4bda46420b1d05ed51a1ad200744ea341ac
font_01_sfnt_off0000e659.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE659 11064 bytes
SHA-256: 8698d02c22cdba7201e6626d6fc5c57e0def0bfc1459a915253067cba84e584c

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