Malicious PDF — malware analysis report

Static analysis result for SHA-256 4488470be1463467…

MALICIOUS

PDF

76.5 KB Created: 2021-03-16 03:23:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 7d18ea67968fe55d4871b2b0957b7ba4 SHA-1: 24c190f5277302d2e3ec46e33a0da6b52507e14e SHA-256: 4488470be1463467819fb170f1e9e37fdac11f98ea8fb226fc651ff27138be82
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including brand-impersonation credential phishing and a high ML score. The document body is heavily obfuscated, but the presence of numerous URLs, including one impersonating Norton, suggests a phishing or malware delivery attempt. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a large number of links pointing to disposable hosting, further supporting a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://jirorenuges.weebly.com/uploads/1/3/0/8/130874518/satubimejazez-zexebadolu-nidubew.pdf.
  • 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://botokaw.ru/strik?utm_term=2013+dodge+charger+headlight+assembly PDF link annotation
    • http://pejazadajenatew.getenjoyment.net/the_ethnic_cleansing_of_palestine.pdfIn PDF document text
    • http://dipenoguzel.sportsontheweb.net/82949701708.pdfIn PDF document text
    • http://wipebodu.mypressonline.com/dinuluzunizakuzipajorube.pdfIn PDF document text
    • https://jirorenuges.weebly.com/uploads/1/3/0/8/130874518/satubimejazez-zexebadolu-nidubew.pdfIn PDF document text
    • http://wipebodu.mypressonline.com/math_radical_rules.pdfIn PDF document text
    • https://tusigidufamem.weebly.com/uploads/1/3/5/3/135350313/619311.pdfIn PDF document text
    • https://temabodanifow.weebly.com/uploads/1/3/1/4/131454916/refesil.pdfIn PDF document text
    • http://xuvaxujogilo.mygamesonline.org/bemobejizizasakiburo.pdfIn PDF document text
    • http://miribut.mywebcommunity.org/twilight_saga_eclipse_full_movie_mp4_free_download.pdfIn PDF document text
    • http://woxijakuzadajew.getenjoyment.net/35905226029.pdfIn PDF document text
    • http://nafarami.medianewsonline.com/arpeggios_for_classical_guitar.pdfIn PDF document text
    • https://nagiliju.weebly.com/uploads/1/3/1/4/131412426/xisog-zekonanura-ginudanak-pafomon.pdfIn PDF document text
    • http://piwulag.sportsontheweb.net/oxford_maths_book_for_class_6_cbse.pdfIn PDF document text
    • https://putoluvutawubu.weebly.com/uploads/1/3/1/4/131437806/5285515.pdfIn PDF document text
    • http://lozotago.iblogger.org/zarepokujefife.pdfIn PDF document text
    • http://jaxixojuko.mypressonline.com/paulo_coelho_adultery_book.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/comparaison_entre_cellule_animale_et_vgtale.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rutegoba.epizy.com/51929131839.pdfIn PDF document text
    • http://webakipi.epizy.com/mavujaminalivogekadedefe.pdfIn PDF document text
    • http://ronagipesi.rf.gd/37881993205.pdfIn PDF document text
    • http://lopafulobitap.atwebpages.com/camscanner_to_word_converter.pdfIn PDF document text
    • http://xipanizi.myartsonline.com/wunare.pdfIn PDF document text
    • http://zejugapifelumi.epizy.com/fidazorutejanuxiwuza.pdfIn PDF document text
    • http://sofibimibojas.myartsonline.com/35028592311.pdfIn PDF document text
    • http://wurebosuloxu.myartsonline.com/49861950711.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_off0000e8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A0 5992 bytes
SHA-256: 12d8f701c52ceff32ee982c1fc31f72627c60566a4302d9c0d1f202f2bcb071e
font_01_sfnt_off0000fcdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCDC 11496 bytes
SHA-256: e6b2fd3a0f5945f09355aea418bcf82c49ea2f4e35bb9289a1d383bb74833132