Malicious PDF — malware analysis report

Static analysis result for SHA-256 16e33c45628ec48a…

MALICIOUS

PDF

71.1 KB Created: 2021-02-15 07:17:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 571fad7aedf5d125bc2ce368e0b3c3c0 SHA-1: 7a430f82d17bdf4defe62bb43f1a71f6bff0d737 SHA-256: 16e33c45628ec48a736bcd0772abe7f8fb9b0d8b234833db414476925b2a66fb
126 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
  • 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.
  • 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://seumenha.ru/wix?keyword=slaughterhouse+five+essay+pdf PDF link annotation
    • http://liolika-rsya.ru/fifokulabkk990.pdfIn PDF document text
    • https://nokesopupikes.weebly.com/uploads/1/3/4/7/134767934/08ce384e5e76.pdfIn PDF document text
    • https://bididanigatozum.weebly.com/uploads/1/3/4/3/134314142/tofika.pdfIn PDF document text
    • http://ideal-it.fun/19931355557xhss9.pdfIn PDF document text
    • http://slmit.space/bundle_id_for_android_appsgjmj5.pdfIn PDF document text
    • https://tokafiwunan.weebly.com/uploads/1/3/4/3/134372509/b46f33aa943d120.pdfIn PDF document text
    • https://cdn.sqhk.co/sativomofij/gehebA4/tikbooster_master_fans_followers_likes_tiktok_liker.pdfIn PDF document text
    • https://cdn.sqhk.co/kitobanifamo/HKrxhc5/livinazizepavevigip.pdfIn PDF document text
    • http://avbox.org/63177062471c2kyk.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/wudibirewuduto/beatsx_connect_to_android.pdfIn PDF document text
    • https://s3.amazonaws.com/sojenozap/dikifazerifisijisefe.pdfIn PDF document text
    • http://bogutofiwib.rf.gd/22095990536.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/kiplinger_retirement_report_state_taxes.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_off0000dae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE7 5568 bytes
SHA-256: 22379aaecefcffbb221718db03aa33b911fff1aec1439a3f0534424022a1f89e
font_01_sfnt_off0000edda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDDA 9804 bytes
SHA-256: c93157f5e3143e54e02f729520097acdab518041737257143ac11ca30706859d