PDF malware analysis — malicious · 82725b8820a63fcc

MALICIOUS

PDF

80.6 KB Created: 2021-03-25 08:44:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 6ced474b905cb2c633f7a38546fe856f SHA-1: 95f1527a8019d42c574b86e81b33cc45c0598475 SHA-256: 82725b8820a63fcc7d20f0d427e858b80949d25cc39e6b49ce82b07809cf7aba

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

Heuristics 6

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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://bologen.ru/strik?utm_term=60+series+detroit+service+manual PDF link annotation
- http://aires.fun/2597874597258gxy.pdfIn PDF document text
- http://photoforce.ru/736223064175kwga.pdfIn PDF document text
- http://kulinar2020.site/interim_reporting_us_gaap0h4ja.pdfIn PDF document text
- http://xununutogelukok.22web.org/zoho_show_templates.pdfIn PDF document text
- http://gratoram.site/lotonofanegivon36aor.pdfIn PDF document text
- http://filanion.online/92889033201ud9e6.pdfIn PDF document text
- http://uggi-ugg.com/wisapogefabafizotitqqd1.pdfIn PDF document text
- http://zathkatow.xyz/89374019177c4l7z.pdfIn PDF document text
- http://blancer.xyz/15065582524t4d5t.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/3f1f0a6b-4380-4d90-ace8-a6e345f34b92/97193484414.pdfIn PDF document text
- https://aca292c6-a3ee-4c96-b4c9-db15c8eca1b9.filesusr.com/ugd/cd1d52_ba6708d3b5b34b3e89f14fe7628d0718.pdf?index=trueIn PDF document text
- http://juwozevukiri.rf.gd/wapomiti.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/92e4ecf0-0a78-4006-ba9a-9e1f2035a26e/aqa_a_level_biology_revision_guide_online.pdfIn PDF document text
- http://zozemuki.rf.gd/libro_las_claviculas_del_rey_salomon.pdfIn PDF document text
- http://sukowinom.rf.gd/68483092157.pdfIn PDF document text
- https://ee67c5b3-b4d3-4257-b425-af55881d3a68.filesusr.com/ugd/c60da7_e02c97b4ae4749ffb9d8464f4a6302a8.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/21e88772-ad40-4cf4-839f-9da17fa01cfb/17668035486.pdfIn PDF document text
- http://bejuxufuvojofa.rf.gd/bengali_movie_protibad.pdfIn PDF document text
- https://s3.amazonaws.com/kufazete/2013_subaru_impreza_wrx_sti_hatchback_for_sale.pdfIn PDF document text
- https://4a7d9d2b-1d67-446c-8d6d-bdd3043d1f60.filesusr.com/ugd/c3d078_930d84c2a74b43b7bcb4096fdec0f266.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xezonijida/react_website_templates.pdfIn PDF document text
- https://s3.amazonaws.com/kezemiradigu/92497525645.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4195d480-d2e5-4541-9d83-8ad2dbb23af1/the_burger_shack_menu_alexandria_va.pdfIn PDF document text
- https://71a0d42b-91d5-4e94-9338-ff69ca8a624b.filesusr.com/ugd/e5d5e5_725318cee04f48498b3a52a14902b1d1.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000efb3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEFB3	5228 bytes
SHA-256: `576ebd76223ebf9de499c0e30c4177e15261a7641bfba807e44fac3d1c9c2e2f`
`font_01_sfnt_off0001014f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1014F	10436 bytes
SHA-256: `cb4b93caa2360dc2a1171afaa9c41ed9c94ec38fa3f29e71e2ebb6b9e8d10fb6`
`font_02_sfnt_off00012506.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12506	4324 bytes
SHA-256: `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`

Open this report in the interactive analyzer, or submit your own file for analysis.