Malicious PDF — malware analysis report

Static analysis result for SHA-256 9651e6a392be2776…

MALICIOUS

PDF

76.6 KB Created: 2021-01-17 20:51:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 91fc051632031ab0c004b9b6f9daa4e2 SHA-1: b31327fedd8f3330f79d24c678c2106a460cf2f8 SHA-256: 9651e6a392be27765fd8c0b6e01b2328dad8c575709319d1f9650913b4a42b54
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document is identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as Pdf.Phishing.Trojan. The document contains numerous external URIs, including one pointing to 'traffking.ru', suggesting it is designed to redirect users to potentially harmful websites. The presence of embedded URLs and the overall structure indicate a phishing or malware distribution attempt.

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://traffking.ru/123?utm_term=geometry+dash+hacks+pc+2020 PDF link annotation
    • https://site-1177236.mozfiles.com/files/1177236/facer_watch_faces_won_t_download.pdfIn PDF document text
    • https://site-1245113.mozfiles.com/files/1245113/jawujapidozozu.pdfIn PDF document text
    • https://site-1173201.mozfiles.com/files/1173201/8735478394.pdfIn PDF document text
    • https://site-1172011.mozfiles.com/files/1172011/sabobupulonodiponi.pdfIn PDF document text
    • https://site-1176202.mozfiles.com/files/1176202/30616156744.pdfIn PDF document text
    • https://site-1235432.mozfiles.com/files/1235432/36965042565.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423699/normal_5fb5fa62f417d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417419/normal_5f99ada67f58c.pdfIn PDF document text
    • https://site-1249273.mozfiles.com/files/1249273/rutaxobig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365553/normal_5f874faf416ce.pdfIn PDF document text
    • https://nirasiban.weebly.com/uploads/1/3/4/3/134344158/penedodeg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425910/normal_5ff906b9815d6.pdfIn PDF document text
    • https://site-1176228.mozfiles.com/files/1176228/change_email_template_laravel.pdfIn PDF document text
    • https://site-1172092.mozfiles.com/files/1172092/xupafogew.pdfIn PDF document text
    • https://site-1178814.mozfiles.com/files/1178814/my_talking_dog_app_download.pdfIn PDF document text
    • https://site-1176922.mozfiles.com/files/1176922/72363728129.pdfIn PDF document text
    • https://site-1166625.mozfiles.com/files/1166625/baillie_gifford_japanese_fund_fact_sheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000eb8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8C 5752 bytes
SHA-256: 19dc338015830dfc34b08953f4f804c9760e544b36139346427b01f40935b585
font_01_sfnt_off0000fefd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEFD 11188 bytes
SHA-256: ae9c4a01dded2f0283e1f0719e53dbac936ec4b5dafa1117154584ff24f603f7

Open this report in the interactive analyzer, or submit your own file for analysis.