PDF malware analysis — malicious · ca7ee3b10d162d1a

MALICIOUS

PDF

121.4 KB Created: 2021-03-30 05:48:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: df1a076b0a3685d0e23049ddcf8e70b5 SHA-1: 0c2b112b19639a21fca23d49dd4122f855685fdd SHA-256: ca7ee3b10d162d1a77721df46def9799194b21356a1cdd928de088f2cc6e010f

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many of which point to other PDF files, suggesting a link farm or SEO poisoning tactic. The primary URL, 'https://baarspo.ru/award?keyword=panchatantra+tales+in+kannada+pdf', is designed to mimic a search result, likely to trick users into downloading malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9756

Heuristics 4

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.
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://baarspo.ru/award?keyword=panchatantra+tales+in+kannada+pdf
- https://cdn.sqhk.co/naruxibe/igvhj6p/noxowimava.pdf
- https://cdn.sqhk.co/keropolor/ciejgi6/texas_longhorns_baseball_score_last_night.pdf
- https://gutototuwasikik.weebly.com/uploads/1/3/4/8/134876789/791d889b7.pdf
- http://mazoxobiziwikut.iblogger.org/25799963694.pdf
- https://dolojimopa.weebly.com/uploads/1/3/4/8/134887070/wepoxezenoxi.pdf
- https://cdn.sqhk.co/gowamojon/agchjge/punch_boxing_3d_1._1_1_mod_apk.pdf
- https://cdn.sqhk.co/wuzexesetaba/ihcpji3/21047000750.pdf
- https://sobafezusebe.weebly.com/uploads/1/3/5/3/135335887/2365696.pdf
- https://datugabow.weebly.com/uploads/1/3/4/7/134745554/800d19165746fe.pdf
- http://setifol.66ghz.com/60136465264.pdf
- https://cdn.sqhk.co/letarezetap/yziikgg/lutejufe.pdf
- https://cdn.sqhk.co/numanazolov/GJmjd0K/aashto_roadside_design_guide_errata.pdf
- https://cdn.sqhk.co/detazido/qjgeiih/5k_to_10k_app_free.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/be6024bb-2589-4a09-81a4-de804a53e15e/cantos_para_el_domingo_de_ramos_2018.pdf
- https://e1eccfe9-8888-4f52-a155-e9c8e84e0752.filesusr.com/ugd/4fb05f_ef804e77511c42d8933e3a19c0727050.pdf?index=true
- http://wivakixisataso.epizy.com/structures_or_why_things_dont_fall_down_mobi.pdf
- https://uploads.strikinglycdn.com/files/e371309f-db99-4b2a-ae6d-7234bb46f715/what_is_the_role_of_a_traffic_warden.pdf
- http://lemizirimafon.epizy.com/cisco_expwy-_1200-_k9_datasheet.pdf
- https://c8f0d892-4c73-447a-841b-b6a48a565a7d.filesusr.com/ugd/928a57_c8d26e1b8b874beaaa4d9f4bcde338c2.pdf?index=true
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0001a8a5.bin` `6f895e496154dd761337d599f8e266a307e7c8967bb0ad1755721133efea3412`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1A8A5	5308 bytes
`font_01_sfnt_off0001baab.bin` `6c097f027e36b07869a4291efc9f1da25446d42524c94b7df57c67034027ab6e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1BAAB	15656 bytes

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