Malicious PDF — malware analysis report

Static analysis result for SHA-256 65f954f0b4959845…

MALICIOUS

PDF

75.6 KB Created: 2021-04-23 06:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: b502fa4d496969c6e8bbddf22108e2b5 SHA-1: 11ac4d5eb0e0e1dbca0be62c5bc8f2dca9d24a05 SHA-256: 65f954f0b4959845dd6aa423921ba4c3450ee992588cf220ef211c0abac40b50
126 Risk Score

Malware Insights

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

The PDF contains numerous external URIs, with a primary focus on a URL related to 'xbox 360 controller wireless receiver driver'. This suggests a phishing or scam attempt to trick users into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://xajibur.ru/strik?utm_term=xbox+360+controller+wireless+receiver+driver PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4377936/normal_5fdf2640a5128.pdfIn PDF document text
    • http://bubixuwegopoxer.22web.org/22783816498.pdfIn PDF document text
    • http://kamefutebiwef.mywebcommunity.org/dagedajevapada.pdfIn PDF document text
    • http://zexejodubaxiku.mygamesonline.org/most_important_spelling_words.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469351/normal_5ff54d603b4f9.pdfIn PDF document text
    • http://muzesumulel.getenjoyment.net/39603444269.pdfIn PDF document text
    • https://koxowugazetumul.weebly.com/uploads/1/3/6/0/136015765/818da85bd974.pdfIn PDF document text
    • https://parafobosa.weebly.com/uploads/1/3/1/8/131857791/b8dba0.pdfIn PDF document text
    • https://numesenara.weebly.com/uploads/1/3/1/0/131069843/448947.pdfIn PDF document text
    • https://pafovawulawagi.weebly.com/uploads/1/3/4/5/134581771/rajanujagikom-bilibob.pdfIn PDF document text
    • https://pifixisoti.weebly.com/uploads/1/3/4/3/134379985/nulaxa_pebonume.pdfIn PDF document text
    • http://konalofasu.mywebcommunity.org/temimizu.pdfIn PDF document text
    • http://sinomefonok.mywebcommunity.org/jacopone_da_todi_laude.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427094/normal_6004317c51a61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379722/normal_602fd6dcb454d.pdfIn PDF document text
    • http://polobasopika.mywebcommunity.org/37374401285.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vexolofifete.atwebpages.com/51794257302.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/oo_worksheets_for_kindergarten.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/57778888542.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/barijifuzadelo.pdfIn PDF document text
    • http://jokosen.atwebpages.com/moropuvulemavogosir.pdfIn PDF document text
    • http://dejujerun.rf.gd/50224630585.pdfIn PDF document text
    • http://jagazasa.epizy.com/fomemop.pdfIn PDF document text
    • http://wudemexa.myartsonline.com/38394396766.pdfIn PDF document text
    • http://xukiwelufa.epizy.com/zakixubakubulusararamo.pdfIn PDF document text
    • http://xinirujoki.epizy.com/65688120507.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_off0000e5eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5EB 5520 bytes
SHA-256: a16eb7f9044d6f27f6d0ab3326896cb02fe941177dd2765ae78c75a884e5b5b0
font_01_sfnt_off0000f8d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D0 12456 bytes
SHA-256: 150983df4cc41125b0014cf2e1a0ca5a0e0d40e24384b70cc0a0dc08869bd3ac

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