PDF malware analysis — malicious · 3c1014506c4fa944

MALICIOUS

PDF

83.9 KB Created: 2021-06-14 23:33:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 380105d1cc482c1e69378902e53b8a37 SHA-1: c573aa74122de24e49878de82419f253179a8a01 SHA-256: 3c1014506c4fa944ca25fc1af0928271db22cd5e9fae7e811689cf6b19e6e747

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The document body text, though garbled, includes a phrase related to downloading an MP3 song, which serves as a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for distributing further malware or conducting phishing attacks.

Machine Learning

Nyx PDF Classifier malicious score 0.9978

Heuristics 6

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 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://ketchas.ru/pbw?utm_term=chelaji+re+patan+thi+patoda+mongha+lavjo+mp3+song+download PDF link annotation
- https://mefinijusigoti.weebly.com/uploads/1/3/4/4/134499215/janate.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413712/normal_5ff5f229dcf0c.pdfIn PDF document text
- https://tiforunu.weebly.com/uploads/1/3/1/4/131437018/sarobol.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4403537/normal_60b5016ddd575.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372980/normal_60c39d2b8d771.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447464/normal_602bf5e5226cf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452839/normal_601b61dac5f7c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4466175/normal_60b80fedd8878.pdfIn PDF document text
- https://mobejameraxoluv.weebly.com/uploads/1/3/5/3/135316129/6026382.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418401/normal_6067d98e8fe8c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382414/normal_6015bccc3cf15.pdfIn PDF document text
- https://puzuzabijil.weebly.com/uploads/1/3/2/8/132814257/vubegitori_buxit_wurepekuz_fakuxifirekiret.pdfIn PDF document text
- https://riwurarelix.weebly.com/uploads/1/3/4/4/134484082/puboto.pdfIn PDF document text
- https://melejorun.weebly.com/uploads/1/3/0/7/130775242/8957598.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366313/normal_6031035d3cd80.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411717/normal_5fd0f7b443fdb.pdfIn PDF document text
- https://xeveguxugagu.weebly.com/uploads/1/3/4/6/134600238/luziguni-ririgen-bexavamedojedej.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.indictrans.orgIn PDF document text
- https://uploads.strikinglycdn.com/files/a2a25d94-a504-4dda-90d5-51b9d30bd36d/97264245175.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/133de9af-9e9d-44d2-89d0-f7e58f1b3732/25989912398.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f79fbca7-6e6b-4df3-9a34-4b085718dca5/bevegatejak.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0fac6f1e-a664-4966-8b1d-3f3ab3fcdda2/cars_2_video_game_ps4.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5a7d6e16-d627-4af7-980a-c83518ed08df/conceito_de_planejamento_segundo_vasconcellos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89de2adc-3fe9-45d2-ab24-4893ccb21f4f/21311549550.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0c38e043-d6f3-4850-9d3e-a4ccf874b842/63944360548.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_off0000d9e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD9E7	7188 bytes
SHA-256: `8af56e7e1cc0a4fde042cb32f83a8d8756622e0fd102a2b9dbf0fa2b2a94da33`
`font_01_sfnt_off0000f210.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF210	5672 bytes
SHA-256: `f5a8dcb89a59e62f4d7abafe5b59ce6568835c95e8c458179f0053daf984aa52`
`font_02_sfnt_off0001053d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1053D	6680 bytes
SHA-256: `a66f5f516fedb114dc3f486c1e3aa90b779e7b7a8c7e32b074eacd4062c503c1`
`font_03_sfnt_off00011af0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11AF0	10436 bytes
SHA-256: `34d3a5979a3fbc21640a95d2174b7be9c8a599ae68968af05b4ba0d0699cc1b8`

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