Malicious PDF — malware analysis report

Static analysis result for SHA-256 b55ee7ef5eae46df…

MALICIOUS

PDF

78.0 KB Created: 2021-02-28 16:51:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 3390b5f75483a5d5c8a58c0783e5bc3e SHA-1: 52dea05805ef2b117b69836dcae758a21ac2b97a SHA-256: b55ee7ef5eae46df9ac2b7664e99db4b8c6ac67d90f998cd4223206db0700c7d
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or spam distribution tactic. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of a malicious campaign, possibly involving a drive-by download or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/123?utm_term=v1+v2+v3+verbs+with+kannada+meaning PDF link annotation
    • https://muwalivom.weebly.com/uploads/1/3/2/6/132695892/1661945.pdfIn PDF document text
    • https://pagopolekabob.weebly.com/uploads/1/3/4/3/134305888/6a26ddd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387699/normal_5ff26a9cdf647.pdfIn PDF document text
    • https://butilitari.weebly.com/uploads/1/3/3/9/133997497/gubivizoxiwagugexa.pdfIn PDF document text
    • https://vaxudiku.weebly.com/uploads/1/3/4/7/134709892/3081457.pdfIn PDF document text
    • https://kofodurulivikaf.weebly.com/uploads/1/3/3/9/133997487/sozesem-xojiki-niwavoxipisunej-jujopaz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378406/normal_5ffd7d2af02ec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420239/normal_5fcdefcb9d6c8.pdfIn PDF document text
    • http://mananeje.66ghz.com/sopaneguxaforudisodizapu.pdfIn PDF document text
    • https://jikurufor.weebly.com/uploads/1/3/4/6/134613562/4405450.pdfIn PDF document text
    • https://fajizaxaro.weebly.com/uploads/1/3/1/3/131381717/bivonubore_nenidejakesi_panalida.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410016/normal_6005180c21a80.pdfIn PDF document text
    • https://zatenumidepav.weebly.com/uploads/1/3/0/7/130776458/wafunezubep_fefijokeriwe.pdfIn PDF document text
    • https://kapomubevobi.weebly.com/uploads/1/3/4/6/134681937/nawogiwazetenim.pdfIn PDF document text
    • https://zexojoru.weebly.com/uploads/1/3/1/4/131409474/napaxa.pdfIn PDF document text
    • https://bikigevoxepasi.weebly.com/uploads/1/3/4/7/134716722/zixufe_simonibumazu_bigilanipemexe_nimevodapoga.pdfIn PDF document text
    • https://kisumeselebo.weebly.com/uploads/1/3/6/0/136021012/zavotoxapa_wizaxutataw_tobapevaf_putigojazipog.pdfIn PDF document text
    • https://kuginipa.weebly.com/uploads/1/3/4/8/134853520/553374.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401982/normal_5fdae255d67c2.pdfIn PDF document text
    • http://xuvepawa.iblogger.org/62560989499.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nifekubipaxo.epizy.com/aashiqui_2_movie_dialogue_free.pdfIn PDF document text
    • http://kokiralasido.epizy.com/aadukalam_dhanush_movie.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_off0000ea13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA13 5876 bytes
SHA-256: aac9befc7a07ba939a43471042f34f3557c26f94073eef3d2cafff1100a2ac81
font_01_sfnt_off0000fe03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE03 14152 bytes
SHA-256: 742463db55bb1fd907cf5ec0c8ff6432aac805bae0c75dda398a4b1c0ba0e6f8

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