Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d433882425b817…

MALICIOUS

PDF

76.3 KB Created: 2021-03-01 06:11:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f9914f16477dd3d3d6c26d5ab070d7c0 SHA-1: e95de0e3e742b720a1bfbf139ad8e467dad40b1d SHA-256: 76d433882425b8171a89a344ed0e43d7d42b1345627f93dd4f161b7cbfe3edc1
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, identified as a link farm. The primary purpose appears to be directing users to various external PDF files hosted on disposable domains, which is a common tactic for SEO manipulation or distributing malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9597

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.
  • 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
  • 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://druttle.ru/award?keyword=how+to+turn+on+behringer+x32 PDF link annotation
    • http://jefevivavifax.scienceontheweb.net/topumen.pdfIn PDF document text
    • http://astrology-personal.online/pearson_physical_science_concepts_in_actionm5uvz.pdfIn PDF document text
    • https://widonudafedezu.weebly.com/uploads/1/3/0/7/130776490/4741906.pdfIn PDF document text
    • https://deriwofapavuz.weebly.com/uploads/1/3/4/3/134311795/7594672.pdfIn PDF document text
    • https://guvepilafofifiv.weebly.com/uploads/1/3/4/6/134682232/pobemun.pdfIn PDF document text
    • https://vefiwuzozubeki.weebly.com/uploads/1/3/0/9/130969791/wunonubakatojel_libitofebo_pigesar.pdfIn PDF document text
    • https://mugebixivezir.weebly.com/uploads/1/3/1/4/131484268/4316811.pdfIn PDF document text
    • https://bunivuwavimi.weebly.com/uploads/1/3/4/7/134706582/zafexukoviduza-soxak-zijenepobaz.pdfIn PDF document text
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/futonafasebedofik.pdfIn PDF document text
    • https://tedipoji.weebly.com/uploads/1/3/1/4/131408178/mufatofonij-romedazi-milogekavafu.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/7ffb3b783da61b5.pdfIn PDF document text
    • https://koxizekeb.weebly.com/uploads/1/3/4/7/134770308/40f59c.pdfIn PDF document text
    • http://itasda.online/crusader_kings_2_wiki_traitsjtzr6.pdfIn PDF document text
    • http://helplnstagramcontact5087423.com/comptia_linux_guide_to_linux_certificationjr10w.pdfIn PDF document text
    • https://rixeludabigadak.weebly.com/uploads/1/3/0/9/130969597/a5b68e74e46b2.pdfIn PDF document text
    • https://faruroju.weebly.com/uploads/1/3/5/9/135986438/nomonubosili.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/max_lucado_new_book_jesus.pdfIn PDF document text
    • https://s3.amazonaws.com/kobivimelelo/8305290926.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/performance_edge_dance_school.pdfIn PDF document text
    • http://tuwutexo.onlinewebshop.net/blacks_law_dictionary_human_being.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/embedded_c_programming_tutorial_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/32382402069.pdfIn PDF document text

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