Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed0c0c5a6e05c0f…

MALICIOUS

PDF

93.2 KB Created: 2021-04-11 14:55:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: af3a8f62ecf6863506d5fe386b3158c4 SHA-1: 903c360cb19cb8652703f249626f905d9d75b678 SHA-256: aed0c0c5a6e05c0fde39cc03fe38ac9da08747ce574aa7ec9aba9a5ca9778e2d
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains an embedded URI pointing to 'botokaw.ru', which is likely the primary destination for the attack. No scripts were extracted, but the overall structure and heuristics suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

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://botokaw.ru/strik?utm_term=the+darkest+minds+book+wikipedia PDF link annotation
    • http://genonobamubus.22web.org/tapafefuwesij.pdfIn PDF document text
    • http://sakhavto.ru/security_officers_handbook_standard_operating_proceduredyaxy.pdfIn PDF document text
    • http://sq11mini.com/white_fang_book_age_rating7bqux.pdfIn PDF document text
    • http://whysmall.space/disaster_area_inspection_report_form1ni7n.pdfIn PDF document text
    • http://dfahsdfgjsfg.online/2008_civic_si_maintenance_schedulexlb4j.pdfIn PDF document text
    • http://zopevaxawoxe.22web.org/85743119617.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fe0966e-1185-4b12-919a-64b4f1ed33f9/lojorokiwugakezagowilufo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba933257-c258-470c-9124-c6c2f6e5402a/xuxuf.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/patabagekut.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/how_to_charge_subaru_power_washer.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/rirovubiw.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/guziwoborakosarafonifoxi.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/thinking_fast_and_slow_summary_of_chapters.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/kuworazapuxivegesemenup.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/39103935453.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/famivigowakegixoberufesul.pdfIn PDF document text
    • http://dagewokoxigu.rf.gd/apk_coc_mod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/130374dc-d2d7-4081-8f07-36f534a449da/the_story_of_arthur_truluv_trilogy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49e4f467-36b9-41d5-ae64-5b89daced0e0/what_are_some_examples_of_biosphere_reserve.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/nobesesasijigibibolijasul.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/acoustica_mixcraft_free_2._471.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/x3_terran_conflict_weapons_guide.pdfIn PDF document text
    • http://gametusepezuka.rf.gd/suzimivopafutetagifopajuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b53204b-13f6-4735-ab95-35c1159f3a05/70961487558.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/tiwuf.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/apc_smart_ups_5000_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/bodyguard_songs_bodyguard.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/irctc_train_ticket_booking_form.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_off00012f54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F54 5412 bytes
SHA-256: ab015f47a540ad6debf7724f9cfa09ecca8328d171a4dc8568aa84cc3b81f740
font_01_sfnt_off00014198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14198 10892 bytes
SHA-256: 5c6f0b4304188598d58a4c80837f811705b2d6365f9b8cde94754f280133b17f

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