Malicious PDF — malware analysis report

Static analysis result for SHA-256 9001a2909ab61393…

MALICIOUS

PDF

77.5 KB Created: 2021-04-06 12:20:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd184aa341947154443dbd2f56c95edc SHA-1: 3712f2866fcd8b0f3f8096f1b4766e3f1ce75645 SHA-256: 9001a2909ab613933f248a9e5b73a7d1099fd84a84ba9214f6bb807fbcc560df
136 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of an advance-fee scam, using language related to lotteries, prizes, and parcel delivery to deceive the user. The presence of external URIs and the ML classifier's high confidence score indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it is designed to lead the user to a malicious website for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://seumenha.ru/strik?utm_term=does+medicaid+cover+dental+for+adults
    • http://kirakexig.mypressonline.com/laporan_kasus_psoriasis_vulgaris.pdf
    • http://warupipujamoru.sportsontheweb.net/tarot_card_combinations_reader_in_hindi.pdf
    • http://tunewejewuz.mypressonline.com/vsepr_worksheet_high_school.pdf
    • http://xamoxipuwizutux.scienceontheweb.net/dujexoleko.pdf
    • http://ketaton.mywebcommunity.org/navy_special_duty_pay_chart.pdf
    • http://wunadimizurened.medianewsonline.com/nerojetiwiwerodeduxafar.pdf
    • http://bikokobolo.sportsontheweb.net/repimubabipumu.pdf
    • http://foxiduwanati.mygamesonline.org/download_novel_best_seller_2020.pdf
    • http://xuxijosut.sportsontheweb.net/12224065640.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dinagujepapure.rf.gd/new_pneumonia_guidelines_2016.pdf
    • https://uploads.strikinglycdn.com/files/cbec4c6a-b95d-4b23-a772-c5fa5a7af978/dabumesapofe.pdf
    • https://uploads.strikinglycdn.com/files/7b3e38d7-5864-497d-aa6b-6c2e3a10d45d/is_dell_optiplex_780_good_for_gaming.pdf
    • https://uploads.strikinglycdn.com/files/9828dc4f-b34e-448e-bb2f-1e296b7f4098/guwikefepo.pdf
    • https://uploads.strikinglycdn.com/files/ceb16342-41f0-43a1-af6f-11a553013ca4/6_times_tables_worksheets.pdf
    • http://tudaxagobex.rf.gd/denon_avr_1612_master_reset.pdf
    • http://zogadawedalifap.onlinewebshop.net/88944268694.pdf
    • https://uploads.strikinglycdn.com/files/04ab6c6f-d907-471f-bc7f-48bf9569646c/42869179313.pdf
    • https://uploads.strikinglycdn.com/files/aaaeaafd-7151-45a1-aee7-c9fdedefef64/zebelumanifimenawazovixob.pdf
    • https://uploads.strikinglycdn.com/files/86d5cd7d-2f14-4426-bbf0-bd45481439be/homelite_string_trimmer_manual.pdf
    • http://porilebunenagu.rf.gd/which_of_the_following_is_most_clearly_an_example_of_process_innovation.pdf
    • https://uploads.strikinglycdn.com/files/e64b08bd-ab96-40be-89f9-8a23088e3326/jarabexenezejatakojofefo.pdf
    • https://uploads.strikinglycdn.com/files/8ffcae74-e1f8-40d4-b760-c819a471324a/vidotuxisijadubeze.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_off0000f289.bin
129bc23f7fdf949d833a27e1df61f6f98dca7edfc3e936becf47e2f29ca38df8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF289 5224 bytes
font_01_sfnt_off00010444.bin
99e64e2c2359412a4598f6c2895acea0cc537762aae9257d2801aec11c3d70ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10444 10484 bytes

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