Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b65ca562843f5fe…

MALICIOUS

PDF

79.0 KB Created: 2021-03-21 01:43:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 82105d6483750ecf0f426a9a02a31bfe SHA-1: 2f29457f98bce68c57b95a90f653c6ce85295690 SHA-256: 9b65ca562843f5fe35d18612831b0e886844109015f280af9b9dd9e71e76d975
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, with one prominent URL pointing to a site offering 'asphalt 8 hack apk download ios', suggesting a lure for users seeking game cheats. The presence of multiple links on disposable hosting further supports a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://golowaki.ru/wix?keyword=asphalt+8+hack+apk+download+ios PDF link annotation
    • http://crawlmqyu.space/89852692271jq1zu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417414/normal_6052d73e14a19.pdfIn PDF document text
    • https://cdn.sqhk.co/polidupokasu/jchfVje/solar_system_project_work.pdfIn PDF document text
    • https://cdn.sqhk.co/takejirasomu/e2jaATS/n_p_th_cao_qua_qr_code_viettelpay.pdfIn PDF document text
    • http://ramuwesitavoz.mywebcommunity.org/explain_the_difference_between_quantitative_and_categorical_data.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422373/normal_6049ef9477faa.pdfIn PDF document text
    • http://hs-life.ru/the_maze_runner_book_plot_summaryv4sq9.pdfIn PDF document text
    • https://fepobiwebefu.weebly.com/uploads/1/3/4/5/134592484/jasiwelewuzot.pdfIn PDF document text
    • https://baxemazone.weebly.com/uploads/1/3/0/7/130739829/3250868.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495525/normal_6031bc6444b90.pdfIn PDF document text
    • https://cdn.sqhk.co/pezolaje/igjp3sG/mini_soccer_foosball_table_for_sale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417226/normal_5fe237e3ad88c.pdfIn PDF document text
    • https://cdn.sqhk.co/salenasova/fwhh7jc/60267584947.pdfIn PDF document text
    • http://doordash.fun/36969764483zrxli.pdfIn PDF document text
    • http://precabinets.xyz/23402022452t0bg6.pdfIn PDF document text
    • https://cdn.sqhk.co/zegofurop/hicEYhj/malacate_manual_para_2000_kg.pdfIn PDF document text
    • http://iqecoportal.ru/prescription_formatsc6yf.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/12be26af-d89f-475d-a922-1c84b23c96cd/the_midwifes_apprentice_summary_in_chapter.pdfIn PDF document text
    • http://fijumusuxolegoj.atwebpages.com/76699179357.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ae9aea2-9eed-4237-92ea-52b3cce3306d/bijunopabowajimugujul.pdfIn PDF document text
    • http://niwurekatexo.atwebpages.com/66567053209.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfea5eb7-8feb-4471-a3a1-48085602c85c/kanodujozopowema.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e6739c5-b593-4c92-b0d8-0e0480f97bd3/how_do_we_measure_effectiveness_of_training.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_off0000f4cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CF 5404 bytes
SHA-256: b6e7535c95dd2607ae149cfcfc3b203e931c831661ee0cb1431da2e9f1084a80
font_01_sfnt_off0001073f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1073F 11496 bytes
SHA-256: 9a15870c65dc9840a9f36b0a5e90919fe6a77fbd5bd7cd1130364b00bd2cd1c9

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