Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ea69f9e472648bf…

MALICIOUS

PDF

59.0 KB Created: 2021-03-30 21:24:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: c7324b9b53312cb807e2321176819d36 SHA-1: 03a44558e9b091b32b24ee786eba4cfed1b0940b SHA-256: 1ea69f9e472648bfa813be3e940d312434b14b1aa62851b1918a1951888d0dfa
154 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to other PDF files, which is indicative of a link farm or SEO manipulation tactic. ClamAV and ML classifiers also flagged this file as malicious, specifically as a phishing trojan. The embedded URLs suggest an attempt to redirect users to potentially malicious content or further stages of an attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6421

Heuristics 4

  • 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
  • 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://nesibebinirudeb.weebly.com/uploads/1/3/5/3/135311353/9994663.pdf In PDF document text
    • http://mesutilixuta.sportsontheweb.net/xamizafafev.pdfIn PDF document text
    • http://kilijosizujowo.medianewsonline.com/94407661648.pdfIn PDF document text
    • https://bexobejunoguwed.weebly.com/uploads/1/3/0/7/130775871/4494747.pdfIn PDF document text
    • http://vosajizegek.mypressonline.com/fusuziwesirulemoxizoreru.pdfIn PDF document text
    • http://gojawufeki.getenjoyment.net/plot_structure_diagram.pdfIn PDF document text
    • http://lixodamevurobar.mygamesonline.org/sekebixi.pdfIn PDF document text
    • http://fagumawegoleleb.mypressonline.com/74315554694.pdfIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/B9wesDdUo4k/wb?keyword=what%20is%20a%20good%20time%20for%20dt%20crossfitPDF link annotation
    • https://6129906d-bc82-46a7-99f5-71793a58af3c.filesusr.com/ugd/d162e3_fc778e98247b46c8a18e4eee80f3f493.pdf?index=trueIn PDF document text
    • http://nifusotajezunur.atwebpages.com/major_terrestrial_biomes.pdfIn PDF document text
    • https://46d16763-6c5f-4e19-aa2c-3f4071fcbec2.filesusr.com/ugd/26f730_a7c9a7266b604b13be95812d3d667b27.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/31452828467.pdfIn PDF document text
    • https://550dfcec-0280-4316-a0d5-68b74a7a20b9.filesusr.com/ugd/f59309_ce28020416c74a5083725653512469e2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bifamomove/how_do_i_block_a_number_on_my_panasonic_cordless_phone.pdfIn PDF document text
    • https://40ba1f7a-6e91-49bb-bbb8-dfbb40a2bc60.filesusr.com/ugd/22bf55_75655cf6b11a4dedaeddf452083abb07.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/petodedenotofusutid.pdfIn PDF document text
    • https://abbf68a8-5b21-4996-91be-11266bd273ed.filesusr.com/ugd/9374a7_54b62890503b4a49ba901e48ccaacbba.pdf?index=trueIn PDF document text
    • https://6b551870-9d71-4c88-87ac-30bafd697196.filesusr.com/ugd/b27e13_5584de96c4c343eb89215cabbaa96130.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tutasujal/gadixemedowurosa.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/instax_mini_10_sheets.pdfIn PDF document text
    • https://f039f7e9-c7fa-441d-bf3d-2f0e35d6be10.filesusr.com/ugd/80685d_8ce85a3ebc3241259c99398fca5154b0.pdf?index=trueIn PDF document text