PDF malware analysis — malicious · 5cbfdf9a3eedf9ec

MALICIOUS

PDF

83.7 KB Created: 2021-06-12 04:36:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23

MD5: e9c0927a1d18ceea6e1e80ff476e14d9 SHA-1: ca289bce7535f98545fac39599465c50454ba87f SHA-256: 5cbfdf9a3eedf9ecaf44fb54f554d9b87cb9d08719818eaef2c78a535c5c9948

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, with one specifically pointing to 'dugedepap.ru', suggesting a phishing or malware distribution attempt. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
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://dugedepap.ru/123?utm_term=bticino+classe+300+wifi+manuale+installatore PDF link annotation
- https://dametubidino.weebly.com/uploads/1/3/1/3/131383661/727500b35.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443799/normal_604dd43170621.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450415/normal_5feb74f37f2a3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413126/normal_603195b640e8b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427783/normal_6014c8c5ba7ea.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4420039/normal_5fe071178f7cb.pdfIn PDF document text
- https://wovisukorapaj.weebly.com/uploads/1/3/4/3/134347407/ximexa.pdfIn PDF document text
- https://rurujopolobadez.weebly.com/uploads/1/3/4/4/134444805/88665.pdfIn PDF document text
- https://bevazemirif.weebly.com/uploads/1/3/4/8/134873662/giwizofo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411490/normal_60468580a2c4e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368230/normal_6030140b75101.pdfIn PDF document text
- https://xisaxori.weebly.com/uploads/1/3/5/3/135324705/d6cdd3.pdfIn PDF document text
- https://vanuludegevu.weebly.com/uploads/1/3/0/7/130776818/tumezivan_kemif_wadezunenin_jidimilo.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4528260/normal_5ff37f2a906cb.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
- http://gaguwufajij.pbworks.com/w/file/fetch/144765474/11887478925.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cd51c424-000e-47d2-b3ad-40745e1d4a0b/29137476522.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3d9b2816-c71a-4bf2-af4d-e365fbfea9bc/accounting_made_simple_online.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/53c58a2a-a805-41e8-b66e-6e98d95cdb6e/xuzajijolibirufunur.pdfIn PDF document text
- http://gibuwodebu.pbworks.com/f/18329206644.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c15722fb-30fa-4486-904c-4d40334e687f/jizekifif.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fbed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBED	5356 bytes
SHA-256: `ca048adfb643466f0cbce9067c44c19ec8085321965fa33c4d723b632e70919b`
`font_01_sfnt_off00010e0d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10E0D	11272 bytes
SHA-256: `857703e2985e1e68e6ce0defda97784814cae509cee541f065e454dc68a02145`
`font_02_sfnt_off0001335b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1335B	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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