Malicious PDF — malware analysis report

Static analysis result for SHA-256 fccbbe8200766ace…

MALICIOUS

PDF

70.4 KB Created: 2021-02-27 06:19:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2c750c37ff1c1a380b09df80df73f3a0 SHA-1: 39590e4ddac103fba9308d8601f461863968bb9b SHA-256: fccbbe8200766ace50bd688f98b923dec53ecc63d0216aa71255175d7d8eb0de
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yafferge.ru/award?keyword=amc+10+2018+b+pdf In PDF document text
    • http://xuvaxujogilo.mygamesonline.org/hmdx_jam_speaker_instructions.pdfIn PDF document text
    • https://wojopegoguw.weebly.com/uploads/1/3/4/6/134690206/veselep_xukulurukudu_lowodexojiv_pixijawugezudi.pdfIn PDF document text
    • https://pigabatanez.weebly.com/uploads/1/3/1/3/131380253/d9967e7c6.pdfIn PDF document text
    • https://gavokafiwafez.weebly.com/uploads/1/3/1/3/131381231/zinazabetatogab.pdfIn PDF document text
    • https://zaluzukefajol.weebly.com/uploads/1/3/5/4/135400247/gaxevomabatus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379839/normal_601c6531b15d4.pdfIn PDF document text
    • https://rasafidi.weebly.com/uploads/1/3/0/7/130776861/9436960.pdfIn PDF document text
    • https://cdn.sqhk.co/metusoteliza/Mgcjajj/snapper_fish_and_chicken_menu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414498/normal_602d70149905e.pdfIn PDF document text
    • https://monogelifanalo.weebly.com/uploads/1/3/5/3/135387447/vituma.pdfIn PDF document text
    • https://gutusalewizewuj.weebly.com/uploads/1/3/1/8/131871657/ae85dc0c5b.pdfIn PDF document text
    • https://tenewalewufubin.weebly.com/uploads/1/3/5/3/135329800/bbd2963591fc.pdfIn PDF document text
    • https://sunakolezapomuj.weebly.com/uploads/1/3/4/6/134698053/sazivibigogoni_nifonukawuduna_wuruki_vabunolox.pdfIn PDF document text
    • https://cdn.sqhk.co/kurotevu/v8gfjhT/49684840516.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://japinoxizidunub.myartsonline.com/sandisk_clip_sport_firmware_download.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/how_accurate_is_the_16_personality_test.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_off0000d5cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5CB 5436 bytes
SHA-256: 5035b830ca7a42fa06d902050ee0bf1791bed1682f1236b2d80c7075255c16f4
font_01_sfnt_off0000e847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE847 10288 bytes
SHA-256: ff381b981f9b4b6a1778dcf502e746851e65c2e55a8859e4847514baa7e5e81d

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