Malicious PDF — malware analysis report

Static analysis result for SHA-256 e25822ccae5f05a5…

MALICIOUS

PDF

52.6 KB Created: 2021-03-06 05:25:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: f45f32860ca02220f3f5a7f5f2b18e0a SHA-1: 2c0ac19369e64d0e5c62d0cac7b0a74bb68cd10a SHA-256: e25822ccae5f05a517592ad873ff95ba555edee7cf777d5b9452037ce7390a37
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spam operation. The ClamAV detection and ML classifier indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7523

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://botokaw.ru/award?keyword=esl+present+perfect+and+present+perfect+continuous+worksheets PDF link annotation
    • https://niraniki.weebly.com/uploads/1/3/4/6/134662237/6f9a95519c5a.pdfIn PDF document text
    • https://buzijivugaza.weebly.com/uploads/1/3/4/7/134709386/41edf38f3a432.pdfIn PDF document text
    • https://minizejemeroro.weebly.com/uploads/1/3/2/7/132740725/9acb6.pdfIn PDF document text
    • https://zofekumu.weebly.com/uploads/1/3/4/7/134741387/variganelafitinisode.pdfIn PDF document text
    • https://votorivoxezi.weebly.com/uploads/1/3/4/0/134095847/fevekefatidew.pdfIn PDF document text
    • https://gixovazaviv.weebly.com/uploads/1/3/5/9/135982549/1cd292393.pdfIn PDF document text
    • https://pimefukidipobe.weebly.com/uploads/1/3/4/0/134096137/3fe10a.pdfIn PDF document text
    • https://wanojotuza.weebly.com/uploads/1/3/5/3/135346096/perolawelegix.pdfIn PDF document text
    • https://de99c131-68bf-4271-bcef-cda292486844.filesusr.com/ugd/f5892c_eb7b667a986549ebae6fdc818f978562.pdf?index=trueIn PDF document text
    • https://b54663a3-ff9d-4122-b75c-69b71428c9b0.filesusr.com/ugd/cfa91a_d995643b9de84293af02dc9bff5f19cf.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed9b14f2-466e-4baa-bda4-2a4372a6b8e6/retov.pdfIn PDF document text
    • https://36c7e617-1221-4173-b726-d5bce2878801.filesusr.com/ugd/610d21_eb1b8d8adbb04a0aab2ca0a8361ca0f7.pdf?index=trueIn PDF document text
    • http://bumevibil.epizy.com/53223632560.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84ef33e1-bd0d-4f33-8be5-f0ed081db047/kuluxipakoxidupuvujafi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3c960a3-583b-4bff-846e-d592b43cdf8d/39892550752.pdfIn PDF document text
    • http://rexonaboruli.epizy.com/4527324817.pdfIn PDF document text
    • https://fd0ef26f-7b8f-4c91-b3b2-19f7ec93487a.filesusr.com/ugd/4174bf_f2b85b12e2bd42d087f96d742013023b.pdf?index=trueIn PDF document text
    • https://1a2149e7-ca7f-4e7c-a584-0e483de6f3af.filesusr.com/ugd/9219f8_580558ecbed44bbd9e111dfb92e6d550.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab41b328-8f6d-4a55-8994-47f8f00bd98f/class_10_physical_science_book_in_bengali.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53dfa063-6ade-4db5-a4ad-6b0f142b6d5f/77003077003.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbb3c07e-f986-47ae-b680-a5b86616ae0b/dawonibezi.pdfIn PDF document text

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