Malicious PDF — malware analysis report

Static analysis result for SHA-256 166f05cf5fea0cb0…

MALICIOUS

PDF

78.7 KB Created: 2021-03-06 15:07:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6a717ddc70cc96a4fbf4c0e7519d4d9a SHA-1: 58bd93fbd8f8aa61b543f36197672d4685ffaaee SHA-256: 166f05cf5fea0cb02a2a6b1221f2ac545e505fc227503bd407dcc2b8022c4948
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://fokemale.ru/strik?utm_term=panasonic+kx-dt333+rufumleitung PDF link annotation
    • https://cdn.sqhk.co/retakabif/Kjfjhjg/las_vegas_free_slots_machines_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385876/normal_600961d1b27f9.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/lhejidx/vigepajebajeselibuba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457847/normal_601af4d4ed27c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484818/normal_602790a0346d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482190/normal_5ff8965dba708.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/85962275154.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/pezupusunuvemafinep.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/25791641956.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/vocabulary_builder_activity_ancient_egypt_and_kush_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee678d98-6c4f-4fe0-a0dc-bf6b1befe31a/samsung_s4_mini_screen_resolution.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/2308653750.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd0bd353-518b-46d1-a105-7742f42a1341/98204455489.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/maviximulog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0c70deb-96ed-4df1-985c-df19465bd99b/usps_priority_mail_international_delivery_time_us_to_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/lonozote/abbyy_eformfiller_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/project_manager_cv_template_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/penyakit_chikungunya_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/276c4ee6-d67a-4d83-81b5-585e996027c6/84746984789.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b25e168e-2c46-46a8-828f-f2902f8086b0/rebecca_by_daphne_du_maurier_online_book.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/dusudulilin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cce91e06-c12f-4112-9c68-1576310d38d2/68405579627.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE347 5552 bytes
SHA-256: 3349109a8dc37fb8d728483371005c255dd4e5cd42df745f4b707ffcb488ff9b
font_01_sfnt_off0000f610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF610 11892 bytes
SHA-256: 04c3ef59050ff1e82cbe1193fd44593a2716f1eecf4d8de3b3557587b8e4b523
font_02_sfnt_off00011d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D1F 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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