Malicious PDF — malware analysis report

Static analysis result for SHA-256 180fa89cc1236ebd…

MALICIOUS

PDF

81.5 KB Created: 2021-04-08 06:26:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 7f233352cc1edb16f0b7e9c7df2c32eb SHA-1: 95dcac230c3e61ed40cffa72ba258e9f8db8c61f SHA-256: 180fa89cc1236ebd256d239437502a20a752a0cb676f1b7eb8702f7daf0bb3b5
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://zajinet.ru/wix?keyword=holosync+meditation+dangers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387037/normal_6065fa6416387.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484610/normal_6010d7709a04e.pdfIn PDF document text
    • http://profmaster74.ru/jagazemaguzefw3vfl.pdfIn PDF document text
    • http://promooffer.site/how_to_add_custom_cards_in_cards_against_humanityouf9v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475219/normal_5fd2601a0adea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472186/normal_5fdcb3007e15c.pdfIn PDF document text
    • http://wekeb.space/84553904358bttld.pdfIn PDF document text
    • http://rudovatimokasum.medianewsonline.com/33836704783.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuzigup/hdg3rhi/temple_run_2_hack_apk_download_free.pdfIn PDF document text
    • https://tipuzivi.weebly.com/uploads/1/3/0/9/130969377/merevimokusu-gupupo-nuwafoxub.pdfIn PDF document text
    • https://zudabipepapob.weebly.com/uploads/1/3/4/6/134672750/namigutavigu.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/lihjahb/wewuvozunot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/92b7efe5-5ffd-47c1-9709-621ddf3ef6b1/whats_the_difference_between_an_llc_and_a_professional_llc.pdfIn PDF document text
    • http://sasaxunofob.atwebpages.com/74653629601.pdfIn PDF document text
    • http://vasakuzepilaxi.onlinewebshop.net/kujodewugozobatubisu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e201403-09fb-488e-8ddd-c8a65a7080b2/andrew_wommack_bible_commentary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b470e1ae-a786-4bc5-a164-48c3822e85de/learning_french_books_for_beginners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1650892-dade-4e5d-b8db-d5b0efc85e23/766338394.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f472.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF472 5108 bytes
SHA-256: dabd833378e5eeee5872c41fc4abe72bb6c5fa2a0c81bd5fdd710b971122033e
font_01_sfnt_off000105af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105AF 10976 bytes
SHA-256: 8a369f95d64b1cc9f1016b658bb7f0adec16de62f7c96a891cc8fd77ccbbaaaa
font_02_sfnt_off00012ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ADA 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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