Malicious PDF — malware analysis report

Static analysis result for SHA-256 08cfac1553cf00bb…

MALICIOUS

PDF

97.2 KB Created: 2021-04-26 02:03:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 54766c20ce0c59760623e4ff67ea1356 SHA-1: 84e20c14750de11001590ab39495c7dc0846f698 SHA-256: 08cfac1553cf00bb297072e49d1a3925a153bb254c095c044e9ef5d2e3069012
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 classified as malicious and contains numerous embedded URLs, many of which point to disposable hosting. The primary malicious URL, 'https://jumiwimov.ru/strik?utm_term=collar+x+malice+unlimited+enomoto+walkthrough', suggests a phishing or scam attempt disguised as a walkthrough. While no scripts were extracted, the PDF structure and extensive link farm indicate an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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://jumiwimov.ru/strik?utm_term=collar+x+malice+unlimited+enomoto+walkthrough PDF link annotation
    • https://gusoberususot.weebly.com/uploads/1/3/1/4/131454899/0bfdb16f6333.pdfIn PDF document text
    • http://yandex-dostav.ru/38649632671kzpir.pdfIn PDF document text
    • http://kefudepoduwudi.sportsontheweb.net/techniques_d_amlioration_continue_en_production.pdfIn PDF document text
    • https://zovitixakozi.weebly.com/uploads/1/3/1/4/131483416/1d89f986.pdfIn PDF document text
    • http://linefesejewug.sportsontheweb.net/sociology_of_development_theories.pdfIn PDF document text
    • https://riluvozig.weebly.com/uploads/1/3/4/3/134380056/6615619.pdfIn PDF document text
    • https://mekiwukokoviv.weebly.com/uploads/1/3/4/8/134867966/nelirukarixit.pdfIn PDF document text
    • http://lamisorosasam.mywebcommunity.org/mupuvofunekadekagow.pdfIn PDF document text
    • http://shop-kid-toys.online/how_to_flowchart_in_programmingkkfq0.pdfIn PDF document text
    • http://widonatozeg.mypressonline.com/project_report_on_cable_stayed_bridge.pdfIn PDF document text
    • http://zumufufup.sportsontheweb.net/gumekalofuj.pdfIn PDF document text
    • http://tigadugutuvatix.mygamesonline.org/kugirovekesefir.pdfIn PDF document text
    • https://lorovojiwu.weebly.com/uploads/1/3/4/3/134318747/2d7fc824ecee3f.pdfIn PDF document text
    • https://xanuvewetarew.weebly.com/uploads/1/3/4/7/134732967/4435576.pdfIn PDF document text
    • http://besefobusim.mypressonline.com/73557695359.pdfIn PDF document text
    • https://mosezusimoz.weebly.com/uploads/1/3/1/6/131637881/ade1db6260940.pdfIn PDF document text
    • http://xekalabaxuv.medianewsonline.com/nanebolokov.pdfIn PDF document text
    • https://pebawozo.weebly.com/uploads/1/3/4/8/134865175/tasivatuba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a50d4e77-a5bb-4b75-aa3a-5a076b7df175/82926365422.pdfIn PDF document text
    • http://wenulusevikofa.myartsonline.com/what_is_a_cottage_food.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5f70081-8684-4c28-a325-5a62071b7403/how_to_learn_computer_basics_in_kannada.pdfIn PDF document text
    • http://fikelamizogu.myartsonline.com/zanaje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91f583e8-34f9-478e-af8e-5e09cc271ea5/logistics_and_supply_chain_management_trainee_jobs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6564b06b-3a51-405e-b3fa-79eeeb76961f/nasasupavukoxelirebejixil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ae1c646-b57a-4451-84b0-61903cf9fa44/linear_algebra_a_modern_introduction_4th_edition_david_poole_download.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C2F 4656 bytes
SHA-256: 692aa40ae8a724d3f4a57fd92d13476605546270de2f35c571543b6f2a3d78d8
font_01_sfnt_off00011c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C8D 5304 bytes
SHA-256: 0d9258ec93c8c0716e0a53306a19e67d21c2e408b476d0621847c4fb1de8e513
font_02_sfnt_off00012e82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E82 16732 bytes
SHA-256: 6e377d1ce8c38710e67fc95c8844523cfb8cc2cf8e6e2e2eacb221417a03d6c3
font_03_sfnt_off00015e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E35 16276 bytes
SHA-256: 18c83f7ee4e9e610295f542b16f5cc5e6031f3070ad6d6dc8d4be2d8b46ef0f8

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