Malicious PDF — malware analysis report

Static analysis result for SHA-256 07713a659055ec0f…

MALICIOUS

PDF

81.0 KB Created: 2021-04-25 19:26:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 18f77a5d832a2e9c528a00fda75605e4 SHA-1: e1a26cd8305c5d20c0b628fc0f1b5f39ebcf08e0 SHA-256: 07713a659055ec0f36fb0b5e30f6a5615ceb1193b24719abb29c744d11dacc85
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://pelibifir.ru/strik?utm_term=how+to+write+epsilon+symbol+in+word PDF link annotation
    • http://ighelpcenter.xyz/891505386620scrb.pdfIn PDF document text
    • https://zoponexe.weebly.com/uploads/1/3/1/6/131606878/8490440.pdfIn PDF document text
    • https://vojidejera.weebly.com/uploads/1/3/2/6/132695434/fa7a2a.pdfIn PDF document text
    • http://study-english-04.space/hunchback_of_notre_dame_songs_in_frenchqacx8.pdfIn PDF document text
    • https://xevefoworux.weebly.com/uploads/1/3/1/3/131380592/7d9faac7.pdfIn PDF document text
    • http://trynon.xyz/free_download_strongs_exhaustive_concordance_of_the_bibleh6suz.pdfIn PDF document text
    • http://passive-income.ru/5th_day_of_gm_diet_indian_versiont6t8g.pdfIn PDF document text
    • http://frontend-developer-azaynullin.site/orchestral_manoeuvres_in_the_dark_discographyq4cp9.pdfIn PDF document text
    • https://tobedetileva.weebly.com/uploads/1/3/5/3/135337372/vuvil.pdfIn PDF document text
    • https://pizeposinejuxow.weebly.com/uploads/1/3/2/6/132695365/4a760f95b3d464e.pdfIn PDF document text
    • https://vemegerefawobe.weebly.com/uploads/1/3/2/6/132682093/2173441.pdfIn PDF document text
    • https://sezibuginodeso.weebly.com/uploads/1/3/4/4/134470526/4012564.pdfIn PDF document text
    • https://dugegedop.weebly.com/uploads/1/3/4/3/134338267/6cc742b.pdfIn PDF document text
    • https://didiseripipake.weebly.com/uploads/1/3/4/3/134344006/618cb41ab0.pdfIn PDF document text
    • http://perevod24-card2card.site/sms_messages_app_ipadoocyn.pdfIn PDF document text
    • http://vclean-sale.shop/402672322775e0iy.pdfIn PDF document text
    • https://fogujudusimasob.weebly.com/uploads/1/3/4/7/134713994/fepulib_lukoz.pdfIn PDF document text
    • http://plsale.pro/the_piercing_biblenoema.pdfIn PDF document text
    • http://shop-you.xyz/58601742177dh466.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bokelur/questions_to_ask_about_power_bi.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/parebenijupuxupuxosufijaj.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/bs_player_free_for_macbook_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/gubumusodosike.pdfIn PDF document text
    • https://245ae9ba-e923-43ed-bc11-30ed5d1acd78.filesusr.com/ugd/051519_ab9ab15bb7cd4c61b163bbad73274ffc.pdf?index=trueIn PDF document text
    • https://c4e42e93-254c-4ba8-b495-737f84002742.filesusr.com/ugd/ddb60a_abba6e87e1f64136ac8a46c088d59523.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/murudute/96130041373.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA5 5188 bytes
SHA-256: 35e6a846306f9594ea209aaa5cc563d465bfa4d7b99bc572ddef327197425936
font_01_sfnt_off00011040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11040 11352 bytes
SHA-256: 2afb2935de9332cdfd35154d2d99283db48100b393cf596c8c513cd9e7b43b3c

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