Malicious PDF — malware analysis report

Static analysis result for SHA-256 1518a8ba9027677f…

MALICIOUS

PDF

50.2 KB Created: 2021-06-09 01:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fb254ea9c7c5229c2170023088ebb14a SHA-1: c1dfdcfa9772f56635cf9ae6835538aa095c1721 SHA-256: 1518a8ba9027677f849c6a01fb1db607760c2f12801916a2127f3d7eea3b3bb0
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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 0.8698

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://garglob.ru/pbw?utm_term=farm+animals+in+spanish+worksheet PDF link annotation
    • https://vubupegizisave.weebly.com/uploads/1/3/5/3/135315261/sosilolalirizerixo.pdfIn PDF document text
    • https://jabesukugadipo.weebly.com/uploads/1/3/2/8/132814964/rowaboxevimufokovaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458833/normal_604ba3ab87f69.pdfIn PDF document text
    • https://kajumosezu.weebly.com/uploads/1/3/4/7/134749214/lakibutimujufe.pdfIn PDF document text
    • https://tewabigonin.weebly.com/uploads/1/3/4/7/134760563/saxixibevaleno.pdfIn PDF document text
    • https://mopimigasu.weebly.com/uploads/1/3/4/8/134858917/kalewidap.pdfIn PDF document text
    • https://bitexaxa.weebly.com/uploads/1/3/4/4/134477172/zazibuvokujomu.pdfIn PDF document text
    • https://mugoxebasupube.weebly.com/uploads/1/3/3/9/133999984/naxinefegowipa_xegizore.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469849/normal_6066020ae5799.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369648/normal_603a2de01ee35.pdfIn PDF document text
    • https://fedubipogumuwu.weebly.com/uploads/1/3/1/3/131379546/e3b29b44a.pdfIn PDF document text
    • https://jobajepefo.weebly.com/uploads/1/3/1/4/131482915/dogufutuzukeni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b6719aa-f198-4db6-9a8b-ef8365e31355/how_do_you_fix_a_water_softener_that_keeps_running.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f985de7-09c3-4c48-a492-eae2d41e27f2/16717793401.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0558e694-631d-40f4-b9b5-f29cf87817a2/safety_first_thermometer_rectal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13a2d3c3-19e3-42b5-a9b2-81b8b3dab545/guardian_ad_litem_elderly_north_carolina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e51f1d5-923d-44c7-8bdb-46286d46bf9c/babys_day_out_2_full_movie_in_hindi_download_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c0f83bd-0f81-4ca7-8ee0-820b1ae8f67d/where_can_i_spay_my_dog_for_free_in_los_angeles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/622d4271-705c-428d-a393-e875906c2657/jujujikizemijerilezeziza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b73aee1-cbcb-4d5c-9be4-dd58e3fc77dc/73698372152.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd528ba1-e985-42f3-857d-f08d6aa6f173/nidoliraka.pdfIn PDF document text

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