Malicious PDF — malware analysis report

Static analysis result for SHA-256 17480d0b45ff6193…

MALICIOUS

PDF

78.7 KB Created: 2021-02-22 20:57:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f6f6d2625827b879bec330b3bdcace13 SHA-1: 9889c00dfacb02364a44dc9138ee9ae27cef0dc6 SHA-256: 17480d0b45ff6193c15748092a52b199b43610c5ebf0d0586afbc399c0c415be
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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://baarspo.ru/strik?utm_term=kali+linux+beginner%2527s+guide+pdf PDF link annotation
    • http://myluckybet.xyz/38371135226n3xbi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374843/normal_5fdc3ae8c2eef.pdfIn PDF document text
    • http://bodagimama.iblogger.org/vupiganexolejase.pdfIn PDF document text
    • https://lifigosup.weebly.com/uploads/1/3/4/8/134884960/e79d1e74c807e7.pdfIn PDF document text
    • https://cdn.sqhk.co/ketejeti/jfjcfMz/lumber_yard_washington_iowa.pdfIn PDF document text
    • https://vabeluzaxudi.weebly.com/uploads/1/3/4/8/134884936/xozijirazevux_wumumuvidik.pdfIn PDF document text
    • https://cdn.sqhk.co/fijufupuga/idic1hd/resexesonegoziwaz.pdfIn PDF document text
    • https://kenibojowosude.weebly.com/uploads/1/3/5/3/135324683/9133720.pdfIn PDF document text
    • http://yoganchik.space/96947661072vz82q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484633/normal_5ff06a519677e.pdfIn PDF document text
    • https://cdn.sqhk.co/wekaradukuve/cjigcig/guess_the_candy_game_template.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450353/normal_5ff9a97e9c930.pdfIn PDF document text
    • http://bio-ita.fun/breath_of_the_wild_wii_u_romeao6p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392651/normal_6006b713aedcc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ruzawibo.rf.gd/92069751967.pdfIn PDF document text
    • http://bupubuvapefumi.epizy.com/lurowopawarafagofojikevok.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/denesu.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/70761859741.pdfIn PDF document text
    • http://zaxesagujudiwa.epizy.com/science_form_2_kssm_chapter_8.pdfIn PDF document text
    • http://nixutiwo.rf.gd/balochistan_board_9th_date_sheet_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/apj_abdul_kalam_vision_2020.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C5 5420 bytes
SHA-256: c05403c15dd3549ccb0d4557b94d130ec90f5c236c28b2f9e3f8722801632786
font_01_sfnt_off0001054e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1054E 11772 bytes
SHA-256: 3c23acb4c7760e01eb4ae9a170ce384ae983419f634feb701178e25e59afb644

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