PDF malware analysis — malicious · bc2e342b1d48e5a4

MALICIOUS

PDF

70.9 KB Created: 2021-03-10 19:27:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9cbece25b7acd099dbdcf734da30aa6f SHA-1: d6b65b457dd54278dd0bbf476f6262d2387ac2dd SHA-256: bc2e342b1d48e5a4552cd26135df2d4ea88fcbbecde35f05eedbfebf44af5f59

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 point to other PDF files, suggesting a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 0.8215

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://zajinet.ru/award?keyword=ncert+beehive+class+9+book+pdf
- http://mefamonode.iblogger.org/amleto_testo.pdf
- https://vetakowiv.weebly.com/uploads/1/3/4/7/134733886/c00a7e5c.pdf
- https://silukirajewulo.weebly.com/uploads/1/3/2/6/132695932/dexabo.pdf
- https://cdn.sqhk.co/fowoleleda/if8ggig/winner_soccer_evo_elite_2020.pdf
- https://cdn.sqhk.co/zegofurop/bKLwhjI/50690983750.pdf
- https://tamidotojo.weebly.com/uploads/1/3/1/8/131858916/5dc33b6e.pdf
- https://rikejofexid.weebly.com/uploads/1/3/1/3/131381414/jamitile.pdf
- https://bodovusinorone.weebly.com/uploads/1/3/5/3/135347185/kufuwilikopejekoke.pdf
- https://nudomituge.weebly.com/uploads/1/3/4/6/134677479/serunezumit_vusukifome_pobakimilebol_nonopebajivepi.pdf
- http://numoxubur.iblogger.org/10699831347.pdf
- https://wafulezejo.weebly.com/uploads/1/3/4/7/134748518/gixovevut-wejokazavekolo-turonob-zomemuda.pdf
- https://mupasifuv.weebly.com/uploads/1/3/2/6/132680827/4099bfd9169.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://77da94c0-0f0a-445b-87af-e489a0b5ef66.filesusr.com/ugd/db1da1_49b5a76f981540b9bd53fbcb69aa2d58.pdf?index=true
- https://uploads.strikinglycdn.com/files/10f0eb9e-2f98-4f93-bdab-f16be5da52b6/xuxodaso.pdf
- https://uploads.strikinglycdn.com/files/9c4b14cc-2fc7-4e07-8972-85928cb5bec4/ms_angela_drivers_test.pdf
- https://746420f6-3007-491b-ba72-fd43be5094e5.filesusr.com/ugd/277b62_47026b7bb32248fba5f70308a421bebe.pdf?index=true
- https://uploads.strikinglycdn.com/files/7d6b0258-3235-4744-812c-faa9400ffff4/bagunaterifeziximasivanaj.pdf
- https://uploads.strikinglycdn.com/files/89e98bc5-f8b8-4e76-85cc-cac5ed63663b/pokemon_platinum_walkthrough_lake_acuity.pdf
- https://67bb8873-ca08-4da4-87c0-60a8072ebff6.filesusr.com/ugd/a838c0_4ae2130a9d69436b9fec473a49448f1a.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_off0000f589.bin` `b5b6c7ea6abd9b03982765c30e0945ded379da230c6bcb885ca932345c117baa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF589	5632 bytes

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