Malicious PDF — malware analysis report

Static analysis result for SHA-256 72d032ce19fe59d3…

MALICIOUS

PDF

64.1 KB Created: 2021-02-08 17:55:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2d8e06ab730e4f44290d91113022c389 SHA-1: 018852f2b7d992de6dc5325e351de64e717f41b9 SHA-256: 72d032ce19fe59d3825d5c101e662a3358f93b2d91ea1560043d175a1866f195
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://crophysi.ru/aws?utm_term=bechara+dil+kya+kare+song In PDF document text
    • https://rojilijeliw.weebly.com/uploads/1/3/1/4/131409822/nedidarimokopiwipoze.pdfIn PDF document text
    • http://geekcods.com/91034242086a9g91.pdfIn PDF document text
    • https://vofirojaj.weebly.com/uploads/1/3/1/6/131637635/7581690.pdfIn PDF document text
    • http://blockhcain.host/11756578889tyl1n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368504/normal_60111fd8ca982.pdfIn PDF document text
    • http://bajelow.iblogger.org/ctfa_microbiology_guidelines_2013.pdfIn PDF document text
    • http://ideaita.fun/desibidaxasapw5ny.pdfIn PDF document text
    • http://praktika-ingenieur.com/successful_algorithmic_trading_downloadxhs8b.pdfIn PDF document text
    • https://vajipexinonadol.weebly.com/uploads/1/3/4/0/134096003/1929895.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499002/normal_5ffa54426b33b.pdfIn PDF document text
    • http://pabazumakubonok.66ghz.com/android_phone_broken_screen_access.pdfIn PDF document text
    • http://hurleyshamburgers.com/tisaxuvoto1qll.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xadifoduboboriv.rf.gd/vorirawufaki.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/pubg_game_online_jio_phone.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/blackberry_priv_android_update_2018.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_off0000bead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEAD 5416 bytes
SHA-256: f0675a1b5a38594f03d2b5efe8f5e3ce57f4a9438916c69141a272c3e291972c
font_01_sfnt_off0000d11e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD11E 10384 bytes
SHA-256: 4c3de8ed2a0a371e97590c2f5c9a4da4c1316da8fdd77f3dc2bb3af1b742f249