Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6ef999cc26796bb…

MALICIOUS

PDF

75.9 KB Created: 2021-05-05 21:05:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: e20f2f8db2cffff1121d2f0cbdc7437c SHA-1: e8f390ddeb17489e0bc212dd3e7020d350308451 SHA-256: a6ef999cc26796bbcc9725c3aa7b6bb7284bbfc81e0a6abd23e232f7f9eb5bf1
96 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains embedded URLs, including one that appears to be a disguised search result for a product, suggesting a phishing or malware distribution attempt. While no scripts were directly extracted, the presence of embedded URLs and the overall detection profile indicate a malicious intent to redirect the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://gimoguvi.ru/strik?utm_term=how+to+set+time+g+shock+wr20bar PDF link annotation
    • http://vegunax.getenjoyment.net/akbar_birbal_stories_free_download_in_kannada.pdfIn PDF document text
    • https://cdn.sqhk.co/pufuxogife/eacHX2m/tomupaw.pdfIn PDF document text
    • https://cdn.sqhk.co/voxedijudibo/ha7tij6/9218144733.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/jckDpgj/boxhead_zombies_2.pdfIn PDF document text
    • http://weraka.online/11852402838pv2gg.pdfIn PDF document text
    • https://cdn.sqhk.co/jukusenefow/aVgiAgd/merchant_of_venice_quotes_and_techniques.pdfIn PDF document text
    • http://blognews.top/9673565156241ksu.pdfIn PDF document text
    • https://cdn.sqhk.co/muvetowiripa/dTYWia1/space_rangers_3.pdfIn PDF document text
    • https://woniwisupu.weebly.com/uploads/1/3/4/2/134266019/9166687.pdfIn PDF document text
    • http://mizizufiku.mywebcommunity.org/trane_xb80_manual.pdfIn PDF document text
    • https://mefusinumobidal.weebly.com/uploads/1/3/4/6/134679396/kinipa.pdfIn PDF document text
    • http://1xbet-sportstavki.fun/recarga_facil_vivo_numerol5rby.pdfIn PDF document text
    • http://hhizmet.com/conversational_intelligence_book_reviewtlgpl.pdfIn PDF document text
    • http://nazhivy.net/carrier_weathermaker_9200_error_code_14ceqwo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6c8027e1-9878-41b3-a9ef-32ba2b6bcd02.filesusr.com/ugd/185811_101553b4b93543e4ad213eb362c82d9a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jonora/how_much_do_companies_spend_on_safety.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/dimawokuginaxekon.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/fobinazijokirezanudow.pdfIn PDF document text
    • https://5610d23c-e099-485d-ada5-1c5fec8f01b3.filesusr.com/ugd/97e063_ec9feee7bb194cd1a36297fc636e62a5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/jason_and_the_argonauts_summary.pdfIn PDF document text
    • https://190d602c-e74a-4ea1-b1d2-d722d7947d0f.filesusr.com/ugd/1eddd4_4bceb58e6490450db24944b0a567c9ca.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/janokataruxisugafuduw.pdfIn PDF document text
    • http://dozuxix.myartsonline.com/el_alquimista_gratis_completo.pdfIn PDF document text
    • http://gixarewujedel.atwebpages.com/28417846234.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_off0000e793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE793 5712 bytes
SHA-256: 05b3c12e3dca781b979f97522a62e49571169a354a49711871bcc143d7a3afb3
font_01_sfnt_off0000fae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE4 11176 bytes
SHA-256: 2d03f297d1344eb65d1421ba57507d639c2bf7eae58b81e0344ac50ab782d568

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