Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ecc70f0f603baab…

MALICIOUS

PDF

71.3 KB Created: 2021-02-22 06:01:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2916b63568b9fc7ff05f0b65e726842c SHA-1: 0e832c961183c9e96c89e5cb22491ca1fcd7f478 SHA-256: 0ecc70f0f603baabb1c93ebeaed4ba4c1ff0f67b5941969f1a5fb64641bb56be
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wix?keyword=nikon+fm2+review PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4410722/normal_5feba3bdb7c8f.pdfIn PDF document text
    • http://mowisadewojapu.22web.org/65139108236.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/6hfnGtg/battleclaw_episode_27_release_date.pdfIn PDF document text
    • https://cdn.sqhk.co/guwewaxa/ie6ShbB/77203068282.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459320/normal_5fe44e7c1b8b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424036/normal_5fdf16b30fde0.pdfIn PDF document text
    • https://cdn.sqhk.co/vifutetax/SjcwuKp/22550559997.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449973/normal_6030dd43e0558.pdfIn PDF document text
    • https://goxanakevixi.weebly.com/uploads/1/3/4/8/134857001/talifedaronesizexu.pdfIn PDF document text
    • https://cdn.sqhk.co/mugolino/djjgfgg/ding_sound_effect_download_free.pdfIn PDF document text
    • http://fasufigige.iblogger.org/17573905299.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391898/normal_5fdaf413d19c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447465/normal_5fdeeb48a85dd.pdfIn PDF document text
    • http://wukosuwusa.iblogger.org/87583532599.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/divelikubapiwaj/astro_file_manager_apk_android_4._2.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/datasheet_of_lcd_16x2.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/exerpeutic_bike_900xl.pdfIn PDF document text
    • http://zapofekeba.rf.gd/acer_aspire_one_charger_19v_2.15a.pdfIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/kdigo_transplant_guidelines_2012.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_off0000dc8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC8B 4808 bytes
SHA-256: fd9bd2d290a8e8ccf766708c3f229da9c01f991d9bc0f2b003de145742030bff
font_01_sfnt_off0000ecef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECEF 10364 bytes
SHA-256: 42a170bfc2aa6c19af2a43fba56ebda9a2ed5f750ac1c9370db3eb8c7ff75c32