PDF malware analysis — malicious · 511a3563975949fb

MALICIOUS

PDF

77.6 KB Created: 2021-04-06 06:01:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: af8d1f887035f466daa78241a15d706a SHA-1: b40ccf4d14b48a5f2caf0d5ac55d2e542d9a0a2d SHA-256: 511a3563975949fb877444f6ab2950b009c44f9c0e1359438d073b712ac8e1ab

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF containing an embedded URL that likely leads to a phishing or malware download page. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of an external URI points towards a phishing attempt to trick the user into downloading a malicious PDF.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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=badminton+england+rules+pdf
- https://cdn.sqhk.co/mogudekusab/jhatgd1/82244384105.pdf
- https://cdn.sqhk.co/bujasugawo/ig5gdjg/joxopo.pdf
- http://tezatigobupuvu.22web.org/zoberewewadoripu.pdf
- https://cdn.sqhk.co/keropolor/gTcDheV/toyota_re_panda_baha_hauchi_jatra.pdf
- https://cdn.sqhk.co/rogudokives/JijE1ig/fill_3d_print_with_sand.pdf
- http://hhizmet.com/christchurch_earthquake_survival_storiesdke5n.pdf
- http://weinmvc.net/sokagifapos8eio.pdf
- https://cdn.sqhk.co/zinoliwomi/jGhgcif/luwumagonoxenisi.pdf
- https://cdn.sqhk.co/kakapoxavu/iWAbje0/68936986595.pdf
- https://cdn.sqhk.co/tafolaku/eviaha1/weather_underground_apple_watch_gone.pdf
- https://cdn.sqhk.co/gixezovof/bhejfjg/retrowave_wallpapers_live_wallpapers_gif_radio.pdf
- https://cdn.sqhk.co/pememobuwir/ijh4jgI/65631791940.pdf
- https://cdn.sqhk.co/pozusonitid/Gw6Vcii/exogenous_variable_economics.pdf
- https://cdn.sqhk.co/vakolitakap/fibPmGE/nigixodin.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://xazoviwupudowol.rf.gd/jaxosavil.pdf
- http://vomuvipovaridus.rf.gd/68003188011.pdf
- https://uploads.strikinglycdn.com/files/755d27ff-efc3-4924-b2ce-1973bd91dd72/setofim.pdf
- https://uploads.strikinglycdn.com/files/7d08927e-ee62-471f-88d8-3fcea062a2dd/pubojojuzolesaf.pdf
- https://uploads.strikinglycdn.com/files/f65adb06-2654-4ec2-a38d-57041071c679/wixebijanimesixoxupid.pdf
- http://zerakunutage.epizy.com/ajooba_songs._pk_free.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f094.bin` `da3e0c32a69010219a25296337187f5cae793137686f6e975c85530c6add2303`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF094	5408 bytes
`font_01_sfnt_off000102e5.bin` `ac1b88ee4cd2af9e48d2bb6457e0d6dfb7e5126311047eaa828be9e67b5f5328`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x102E5	11304 bytes

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