PDF malware analysis — malicious · 00a6f02959e25093

MALICIOUS

PDF

64.0 KB Created: 2021-04-08 04:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9d74ca7337e918f96c39b976b29e76f4 SHA-1: e8a665b6b37950820f17e21399ee052d84170399 SHA-256: 00a6f02959e25093ad4abb34a999ac6dceff3251af29b6d6783169881bc8e39d

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many of which are designed to appear as SEO-optimized content, leading to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary IOC is the URL used for the phishing lure.

Machine Learning

Nyx PDF Classifier malicious score 0.8600

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://lozipotod.ru/strik?utm_term=dnd+5e+feral+tiefling
- https://cdn.sqhk.co/resasenubori/cwqjhjc/tactical_battle_simulator_online.pdf
- https://cdn.sqhk.co/xidafigutoxa/gcYqAmb/roroj.pdf
- https://cdn.sqhk.co/mepapogivoma/iehguHf/free_music_downloader_mp3_songs_music_downloader_apk.pdf
- http://rokoxuj.iblogger.org/i_cant_celtx_script.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/baxekojojexusol/xijiboz.pdf
- https://uploads.strikinglycdn.com/files/151a3508-713f-4bff-8885-c347da08eea8/silixanonebosi.pdf
- https://s3.amazonaws.com/vovuzize/dmaic_ppt_template.pdf
- https://6fd4412c-3e6e-4f21-a9af-8137ffc6c0d9.filesusr.com/ugd/03469c_c0d25581e061466abe99732dbe3950b7.pdf?index=true
- https://s3.amazonaws.com/nilafafakem/5515248833.pdf
- http://lejajalosifoler.epizy.com/1318160454.pdf
- https://01c4c9a3-ee74-4db9-a65d-799443b8dbf1.filesusr.com/ugd/a64c8c_d68c3e57f20e47dcad6857dcb223a7c7.pdf?index=true
- https://uploads.strikinglycdn.com/files/ec83e43a-c47d-4cb8-a394-4a6256ad0121/rca_10_tablet_keyboard_not_working.pdf
- http://kixixobaso.rf.gd/kemeviwodotit.pdf
- https://uploads.strikinglycdn.com/files/7abbedf1-0596-496d-8973-176e47646c7d/how_to_prove_congruent_triangles_sas.pdf
- https://s3.amazonaws.com/bojafazes/jovegomureruginixijerigu.pdf
- https://37e79482-e567-4eff-b449-6ea9b90d4679.filesusr.com/ugd/cff0cd_9fd083b5a9a14bd38276dfc66b0908f1.pdf?index=true
- https://5c126656-fc4f-473b-8c99-11744d2e1b96.filesusr.com/ugd/abd8ec_1801d14a09b7445d847415954ce30ff1.pdf?index=true
- https://uploads.strikinglycdn.com/files/c8bc89f1-5564-48d2-bbb1-06bffef41357/red_cross_first_aid_courses_adelaide.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e9d3.bin` `bed3c1f08720ebb207d1fb4e6d652ae0673e935e3184fd9dedcd3bcc9a12725b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE9D3	5020 bytes

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