Malicious PDF — malware analysis report

Static analysis result for SHA-256 32060e52991d08f7…

MALICIOUS

PDF

88.4 KB Created: 2021-02-28 06:08:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 42d004dcbca44f627edea1a1b9c533d6 SHA-1: eed73fecac37008aeb3246430825ccbfff71d8e8 SHA-256: 32060e52991d08f724f059ede9548f2f7617bc445294d218c46afab185757bae
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The embedded URI points to a suspicious domain, 'fokemale.ru', which is likely part of a phishing campaign. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a malicious site for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://fokemale.ru/award?keyword=peer+gynt+suite+no+1 PDF link annotation
    • http://shop-onlain.fun/nowuwogatuxudevodekujenapd8z0.pdfIn PDF document text
    • http://creamwalls.online/javemo6lueh.pdfIn PDF document text
    • http://save50.pro/reynolds_cookie_baking_sheets_parchment_paperhw1z9.pdfIn PDF document text
    • http://pemizirevubel.mywebcommunity.org/is_the_big_nate_book_series_over.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372376/normal_5ff1dc00b8d7c.pdfIn PDF document text
    • http://borejukeluteva.mygamesonline.org/62766103953.pdfIn PDF document text
    • http://yoptan.space/83285517838kk6df.pdfIn PDF document text
    • http://pycnidwzxc.info/carolina_hurricanes_schedule_2018-_19mk3v4.pdfIn PDF document text
    • http://hihikane.space/75498588787j28z9.pdfIn PDF document text
    • http://biomanix.best/69639212377bq4lf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418001/normal_602906ace352d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426425/normal_5fd02be0a8744.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/rubidokezive/88198631198.pdfIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/4093030652.pdfIn PDF document text
    • https://s3.amazonaws.com/dusined/23277512118.pdfIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/how_to_charge_my_schumacher_battery_charger.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/macbeth_act_4_scene_1_quote_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/vulasemizijikevemujuxix.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/webekofesuwijuxepez.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/nuzozebimor.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/best_books_2018_non_fiction.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/monolufebakusav.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_off00012170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12170 4764 bytes
SHA-256: c83b58dbed0303bd8b52e4b94d81c11336401caa1c7ae3d81383114535b7a122
font_01_sfnt_off000131ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131CA 10152 bytes
SHA-256: be0bda8b1004f7ba36f3f498ae45c027e4dd0321d6115dd520a9de1b561c75ed

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