PDF malware analysis — malicious · b1761f9b59bfdd8c

MALICIOUS

PDF

85.4 KB Created: 2021-04-04 01:10:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30

MD5: e5cbeec83910ddf25cc1df400678b8f6 SHA-1: ec17dc68bb5986b1c73f29d4e7cae9ab859f1a8d SHA-256: b1761f9b59bfdd8cdb2204260165055b1ae8640d147e0b1e62591378c03a6521

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The document body, though heavily obfuscated, appears to be a lure related to acrylic painting, likely intended to drive traffic to the malicious URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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 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.
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.
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://fokemale.ru/strik?utm_term=how+to+acrylic+paint+galaxy PDF link annotation
- https://badetujunomut.weebly.com/uploads/1/3/1/8/131857650/012c4b4b6.pdfIn PDF document text
- https://momugidofene.weebly.com/uploads/1/3/4/2/134235368/pifivewuxazobogawo.pdfIn PDF document text
- https://dajilifu.weebly.com/uploads/1/3/4/8/134891154/3bb6369e7.pdfIn PDF document text
- https://nodejobirutita.weebly.com/uploads/1/3/4/7/134748641/1298363.pdfIn PDF document text
- https://xetasigebe.weebly.com/uploads/1/3/4/4/134443645/bezuwuxuvojubexe.pdfIn PDF document text
- https://dubiroki.weebly.com/uploads/1/3/1/4/131483307/lekopiritu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403413/normal_601feddd599da.pdfIn PDF document text
- https://sovufejado.weebly.com/uploads/1/3/0/7/130740048/32f4ff26af21.pdfIn PDF document text
- https://dofolemabumef.weebly.com/uploads/1/3/4/4/134458616/roriviralulij.pdfIn PDF document text
- https://donasidavojixa.weebly.com/uploads/1/3/4/4/134494786/relewinizod_gejipigewuma_faferewovo_tadaru.pdfIn PDF document text
- https://kimiragijasem.weebly.com/uploads/1/3/4/0/134096233/6728161.pdfIn PDF document text
- https://fimegelepa.weebly.com/uploads/1/3/3/9/133999933/6455973.pdfIn PDF document text
- https://fakivafepupu.weebly.com/uploads/1/3/0/8/130873921/1eebb009e512bd.pdfIn PDF document text
- https://gujijuxe.weebly.com/uploads/1/3/5/3/135326775/1766692.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409107/normal_60012e6d2e17d.pdfIn PDF document text
- http://www.typoland.com/http://www.typoland.com/designers/Lukasz_Dziedzic/CopyrightIn PDF document text
- http://www.typoland.com/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/debamijizozexo/xekejokimunevigutesa.pdfIn PDF document text
- https://s3.amazonaws.com/xebuvuwov/spreadsheet_examples_for_expenses.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f65e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF65E	6168 bytes
SHA-256: `9f07a400e75c177e496f395344003d4a7545e118b36bf59d530d47f9bb3550f8`
`font_01_sfnt_off000105fd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x105FD	5144 bytes
SHA-256: `42de7c64bde6936fd5dbb718e9c76103d1ab8f085d0f11679cf6bab10da9925a`
`font_02_sfnt_off000117a7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x117A7	2000 bytes
SHA-256: `6187bd3853ec7d9662704ac340fbbc3b828bca483b445357b8f9a03c609cf3fb`
`font_03_sfnt_off000120dc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x120DC	10920 bytes
SHA-256: `8999289f44e2747eb6c53600e5a250f4dcb99a2c773121be67011ecf70a5c4a1`

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