Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c3b8c95272c46c…

MALICIOUS

PDF

62.4 KB Created: 2021-06-05 02:36:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cb0565d5e541200e875a0204cd548c2e SHA-1: 998e416f3177ae7b55cf04b553b96b0326923073 SHA-256: 02c3b8c95272c46c2c85bd7acc1b072cf749f3a80468119733e0235600870af7
64 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to disposable hosting, and one prominent URL that appears to be a lure for a phishing or malware distribution campaign. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the structure and embedded links suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7860

Heuristics 3

  • 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://chcial.ru/pbw?utm_term=vishnu+sahasranamam+lyrics+in+hindi+by+anuradha+paudwal
    • https://zutekavewer.weebly.com/uploads/1/3/4/5/134514418/7571015627f6e.pdf
    • https://lusizemanu.weebly.com/uploads/1/3/4/1/134108609/8412068.pdf
    • https://bolefusugo.weebly.com/uploads/1/3/4/8/134868203/kamibubipeju-davipa-vafozokotomaje-kubeduxalaw.pdf
    • https://fevowavekotaxuw.weebly.com/uploads/1/3/4/6/134635114/9579919.pdf
    • https://watorixaziju.weebly.com/uploads/1/3/4/5/134586039/513f2.pdf
    • https://zukunade.weebly.com/uploads/1/3/0/9/130969607/ponimas_timadov_rafiputa.pdf
    • https://zademufexek.weebly.com/uploads/1/3/4/7/134765537/af07f8452.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/37fd74c0-01cc-4487-af31-7329ca71a69d/98784258194.pdf
    • http://vedufid.pbworks.com/f/how_to_use_loops_and_threads_sock_loom.pdf
    • http://bawamotijeku.pbworks.com/f/fofipibujavuwakip.pdf
    • http://mujefapufefi.pbworks.com/w/file/fetch/144494529/solving_simultaneous_equations_worksheet.pdf
    • http://jozeluwofe.pbworks.com/w/file/fetch/144425784/24140803086.pdf
    • http://zabodovojif.pbworks.com/w/file/fetch/144427014/45355016136.pdf
    • http://pebegijopolo.pbworks.com/w/file/fetch/144587679/algebra_and_trigonometry_structure_and_method_book_2.pdf
    • http://jabodawo.pbworks.com/f/fixit_laser_level_pro_3_manual.pdf
    • http://taxexuwej.pbworks.com/w/file/fetch/144586872/tutorial_adobe_premiere_pro_bahasa_indonesia.pdf
    • http://zolunegoli.pbworks.com/f/oraciones_bimembres_y_unimembres.pdf
    • https://uploads.strikinglycdn.com/files/26d9167f-3582-45c1-8087-27efb9b46774/coleman_self_inflating_air_mattress_instructions.pdf
    • http://funinupun.pbworks.com/w/file/fetch/144425319/92382146525.pdf
    • http://mibegenav.pbworks.com/f/kizon.pdf
    • http://kibumezi.pbworks.com/w/file/fetch/144557859/what_are_the_personal_strengths_and_weaknesses.pdf
    • https://uploads.strikinglycdn.com/files/8e4cf85c-10da-4933-8910-57da84a9aed6/dapafeko.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb4f.bin
adda52ab565a1e52e9621f687cd195b8bc8448f4a4f46ee92644a7d7c5b1fa3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4F 5612 bytes