Malicious PDF — malware analysis report

Static analysis result for SHA-256 eead19c4a7461100…

MALICIOUS

PDF

75.1 KB Created: 2021-02-14 08:37:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cf497e46ca00b25ba8eb290dc21ac3d9 SHA-1: 043607cfb6f50ed24c455a0a73ba8c34b76647f3 SHA-256: eead19c4a74611004fde842bb2b4436d69dce2d084e5da3e3205a5b8704c5a82
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jottigo.ru/wix?keyword=animoji+apk+for+android PDF link annotation
    • https://cdn.sqhk.co/vanewano/cjcijgj/fomaguwirekakoxesobe.pdfIn PDF document text
    • https://nopetozu.weebly.com/uploads/1/3/4/5/134507327/3296037.pdfIn PDF document text
    • https://nugibunexediga.weebly.com/uploads/1/3/0/7/130740514/2405263.pdfIn PDF document text
    • https://cdn.sqhk.co/netimawifes/vhiibgf/how_to_get_free_baby_bottle_samples.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/icijgcS/ammo_can_survival_kit_amazon.pdfIn PDF document text
    • http://gakofanotizukab.22web.org/meaning_definition_of_accounting_information_system.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461484/normal_5ff8448e4e9a4.pdfIn PDF document text
    • http://pepirizibizedel.22web.org/android_splash_screen_example_asynctask.pdfIn PDF document text
    • https://vademakab.weebly.com/uploads/1/3/1/3/131380849/d85469d012cdc8.pdfIn PDF document text
    • http://probkin34.xyz/megan_fox_net_worthtj71k.pdfIn PDF document text
    • http://astrohelp.space/19441042544a9q80.pdfIn PDF document text
    • https://ruwatija.weebly.com/uploads/1/3/4/8/134846771/07a1e58f0b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371247/normal_6015a2c56c9e9.pdfIn PDF document text
    • http://japancar-sib.ru/xofotewutevaxojuq2h9l.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/vinejivunitego/gorifixaped.pdfIn PDF document text
    • http://lalatotusawedo.epizy.com/instagram_big_profile_photo_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/jilabidorozavalanadu.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/rizipejomeparolatulisop.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_off0000eaa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA4 5108 bytes
SHA-256: d7c16963b26c63c62e1e0d0bb73a192613de22a71c9acf1a7c911048897f9edb
font_01_sfnt_off0000fbfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBFB 10392 bytes
SHA-256: 7f70fc1618b91038068c5194a65e3b37b8867e80366f037a838103cbfd778e9c

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