PDF malware analysis — malicious · 9dbe422b3ee04704

MALICIOUS

PDF

58.6 KB Created: 2021-03-18 02:10:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a835bf83c7c0dbf143f0b72c46248f64 SHA-1: e5d91fcc8ad018fdef6d6bcd2b5fc1662554c474 SHA-256: 9dbe422b3ee04704b8f1ff45cc465592f2e489eb8a664ec12bddf52373ca7333

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, identified as a PDF link farm, suggesting a malicious intent to manipulate search engine results or redirect users to potentially harmful content. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the presence of numerous external URLs and the PDF_SEO_LINK_FARM heuristic indicate a phishing or redirection attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9430

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://soxebez.ru/award?keyword=bodybuilding+exercises+pictures+pdf
- https://cdn-cms.f-static.net/uploads/4458827/normal_6012fb4fd4336.pdf
- https://cdn.sqhk.co/buvaboda/lhiiihd/parcel_rangers_running_game_3d_model.pdf
- http://xagevogewa.medianewsonline.com/gate_syllabus_for_mathematics_2020.pdf
- http://bodegumuxizobi.22web.org/93035355703.pdf
- https://cdn.sqhk.co/fovipobex/gjAhfje/63135398713.pdf
- https://cdn-cms.f-static.net/uploads/4415326/normal_6023a875ee7a0.pdf
- https://cdn.sqhk.co/moxulofilose/jlRYlic/cylindrical_roller_bearing.pdf
- https://cdn-cms.f-static.net/uploads/4469126/normal_604e1d9a96db5.pdf
- https://cdn.sqhk.co/sixepatexup/ISihgj3/spirit_run_game_2_apk_download.pdf
- https://cdn-cms.f-static.net/uploads/4501770/normal_60108ef64964d.pdf
- https://cdn-cms.f-static.net/uploads/4410702/normal_5fe7482374659.pdf
- https://cdn-cms.f-static.net/uploads/4459479/normal_603eba7b463d4.pdf
- https://static.s123-cdn-static.com/uploads/4465390/normal_6005a6a0863d3.pdf
- https://cdn.sqhk.co/xewimoziwuvo/ibsBzM2/89028666904.pdf
- https://cdn-cms.f-static.net/uploads/4416131/normal_60527f6ae96b5.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://wetukanezin.atwebpages.com/carolina_panthers_2020_schedule.pdf
- http://wugujub.onlinewebshop.net/kapanutib.pdf
- https://8c1dc56a-a131-4b43-acff-3635b9115217.filesusr.com/ugd/90423f_c40e9bf3eaad4c5393777ba48685f4d0.pdf?index=true
- http://getozareburi.rf.gd/christmas_caroling_letter_template.pdf
- http://dokudaruriwiv.atwebpages.com/dawuxilirekazefuwu.pdf
- https://cf176ec6-4820-456b-adf9-61e5f06c968f.filesusr.com/ugd/43d598_eb159b4d175d47ca95ab1902a3783fc7.pdf?index=true
- http://zakusomob.rf.gd/nomogatamol.pdf
- https://5ccda086-29c7-4024-8a93-689df1f3b89c.filesusr.com/ugd/ed8107_4a3a28238eef4140b7ac3971fe577d18.pdf?index=true
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ceab.bin` `49bc4b027568a05d324b48fabfcb063b9337ac57cb2dbab3c571924fb919523b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCEAB	5472 bytes

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