Malicious PDF — malware analysis report

Static analysis result for SHA-256 7020eb03ffeabf15…

MALICIOUS

PDF

73.2 KB Created: 2021-03-21 00:49:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9251264fd8d7b7cd56fbab06dc4fc9ab SHA-1: bea5d321f02a312e00c1c6f21bb17c96dc861749 SHA-256: 7020eb03ffeabf155cee6a60018300825668e5413445db06db54aaaa7cbd6ce1
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'botokaw.ru', which is likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains text related to 'Clavier arabe apkpure', suggesting a lure to trick users into downloading malware disguised as a legitimate application.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://botokaw.ru/123?utm_term=clavier+arabe+apkpure
    • http://freshmind.net/wisasagowofupapobovorjmyst.pdf
    • http://lamisorosasam.mywebcommunity.org/charla_de_seguridad_vial_online.pdf
    • http://suzamajotibe.mywebcommunity.org/43051138174.pdf
    • http://file-id.ru/lumironexidesuvxvdly.pdf
    • http://hopecommunitynaz.com/plc_scada_lab_manualyynfm.pdf
    • http://baramijotafexo.mypressonline.com/best_headset_audio_settings_for_warzone.pdf
    • http://gidpopiteru.com/what_certified_internal_auditors_dopbe9x.pdf
    • http://esagafow.fun/lavazza_espresso_point_matineedx6uk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/d66804f3-a725-4531-bc3b-494dd453c347/72025124006.pdf
    • https://s3.amazonaws.com/dazemi/63511243256.pdf
    • https://uploads.strikinglycdn.com/files/b7c79064-9087-4371-84da-ba73d06e7250/greek_mythology_movies_on_netflix_2019.pdf
    • https://s3.amazonaws.com/dorulusof/kindergarten_math_worksheets_free_printable.pdf
    • https://uploads.strikinglycdn.com/files/d14d1241-de74-45a0-bdfa-b20e83567c12/whirlpool_washing_machine_drain_filter_pump_cover.pdf
    • https://s3.amazonaws.com/patotale/tezefibo.pdf
    • https://s3.amazonaws.com/makumapikeze/remittance_advice_template_word.pdf
    • https://uploads.strikinglycdn.com/files/95313d7f-40a5-4db1-8199-8d9bd30bae90/63646516347.pdf
    • https://uploads.strikinglycdn.com/files/f2f35319-1784-4e3e-9240-3bbbe0df0995/86561108755.pdf
    • https://uploads.strikinglycdn.com/files/ff20887e-4f40-4a85-ba3d-6ed9f567e38e/16199189253.pdf
    • https://s3.amazonaws.com/dutimajizowa/pinyin_chart_download.pdf
    • https://uploads.strikinglycdn.com/files/ff5c2a7a-1080-47eb-be87-6dbb117f5100/movifamomudipugisej.pdf
    • https://uploads.strikinglycdn.com/files/4c890777-28d5-4f1c-8831-8a38ba2757ae/nespresso_lattissima_one_coffee_and_espresso_machine_by_delonghi.pdf
    • https://uploads.strikinglycdn.com/files/ea87e5ed-ea59-410f-a80f-742b4411fac7/can_we_day_trade_bitcoin_on_robinhood.pdf
    • https://uploads.strikinglycdn.com/files/7d756eb7-95e5-4c0d-89cc-bbfae2197b4f/dosibixegone.pdf
    • https://uploads.strikinglycdn.com/files/374f5601-03d2-4701-9d99-8c2eacb2b835/14074556860.pdf
    • https://uploads.strikinglycdn.com/files/544f572b-b601-4c9b-b561-6c78d7c14d89/the_penelopiad_chapter_9_summary.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_off0000e29c.bin
5010a623bd1220d8fedaea0a966441af7a811ee7a308478c98bdf85f8861a621		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE29C 4804 bytes
font_01_sfnt_off0000f303.bin
7700962b1e830fbf9efdf71e75ced5d28bd28e4b4f696ec9165e3270939036f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF303 11064 bytes

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