PDF malware analysis — malicious · 6ef2d00f8e0a62b1

MALICIOUS

PDF

72.8 KB Created: 2021-05-29 04:00:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24

MD5: a2f57b879426d1e39c2a451e17fc0ea4 SHA-1: eb029c011de085159e5a6d11564ab59666a1565d SHA-256: 6ef2d00f8e0a62b151226e5f1203d0c1094857d0976a8e2756169a8f0b4ed62a

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, flagged as a 'PDF_SEO_LINK_FARM', directing users to various websites, one of which is identified as a potential phishing or malware distribution point. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery via the embedded links.

Machine Learning

Nyx PDF Classifier malicious score 0.9960

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
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://gimoguvi.ru/strik?utm_term=lys+edebiyat+el+kitab%25C4%25B1 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4426059/normal_5fc8c241c62c6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403816/normal_5fca545d877ac.pdfIn PDF document text
- https://nufodovepitad.weebly.com/uploads/1/3/4/7/134718778/1f6e5.pdfIn PDF document text
- https://pebabozepevi.weebly.com/uploads/1/3/5/9/135966679/xositobudixepijuva.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421468/normal_60416603bbb82.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402267/normal_5ff0232a417d5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380086/normal_6066d8af1651e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375206/normal_60405d40e1431.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4476126/normal_60affb8c626d4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415754/normal_60036d4de1485.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463824/normal_604d0a2130760.pdfIn PDF document text
- https://xanilavobug.weebly.com/uploads/1/3/5/9/135959945/9114540de.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4469641/normal_5fec4f6c0f205.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4391602/normal_5fe3cd03f064d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4370097/normal_5fec837b12653.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471273/normal_604cc9e47d7ea.pdfIn PDF document text
- https://pigofularujatuf.weebly.com/uploads/1/3/4/3/134360020/fuwivilamofalilus.pdfIn PDF document text
- https://wivovomuxa.weebly.com/uploads/1/3/7/4/137499238/6456152.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/3d0adfa7-a6cd-4c09-bd55-1221bc044a55/mushroom_feta_pasta_sauce.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ab6d6b5b-c60a-4e26-b0e8-37512182bf82/super_mario_odyssey_mods_download_font.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/982e229c-2316-425c-9d63-03acb4d6047b/summary_of_martina_the_beautiful_cockroach.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c1f73ed6-ac1a-447d-a4c9-e71d8fa79b91/2004_dodge_ram_1500_aftermarket_parts.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5d6da830-5d07-4efc-bd52-f1310158b793/sword_art_online_volume_1.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5bc8de56-dcd9-4142-946f-9345fc44fe41/uyirai_tholaithen_athe_unnil_thaano_album_mp3_song_download_starmusiq.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b6cb95e8-38d7-4eaa-94b1-6473078406f3/2014_ford_mustang_gt_for_sale_san_antonio.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/08eebb97-76f2-4537-80ea-9d3849174a2b/nuranajatipedixafol.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000decb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDECB	5004 bytes
SHA-256: `81419b179a0650f61beac353ae4c6672598217989bab3435334be9bf9a6f0913`
`font_01_sfnt_off0000efed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEFED	11280 bytes
SHA-256: `93cf064a634e9e2b00709dc4da5ce92f79d7d6e2be201dc6de8edb7402b9bdf3`

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