PDF malware analysis — malicious · 282c205c2d2b2965

MALICIOUS

PDF

68.9 KB Created: 2021-02-27 22:25:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: 8700db5760ff65306c27dba66fec04ed SHA-1: e866bd590db3610b2f8095dbccb70c92e05d9f0e SHA-256: 282c205c2d2b29651ece99bedf5c14d25f3a6f1e3fcdf2e15ddfece90997dd72

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. 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 0.9668

Heuristics 4

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
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/wb?keyword=what%20is%20a%20case%20study%20summary PDF link annotation
- https://gukudobubutagen.weebly.com/uploads/1/3/5/3/135306914/05d3f032c8ba8.pdfIn PDF document text
- https://cdn.sqhk.co/dedenijikal/BKhivEE/28953793002.pdfIn PDF document text
- https://vopifubuk.weebly.com/uploads/1/3/1/6/131636719/a82e95df03.pdfIn PDF document text
- https://xokekomoto.weebly.com/uploads/1/3/4/5/134598663/bejiwuruzitamo.pdfIn PDF document text
- https://koniwosusuzese.weebly.com/uploads/1/3/1/8/131856176/runisenu.pdfIn PDF document text
- https://tojipojewusaw.weebly.com/uploads/1/3/0/8/130814735/semomujatokijudisa.pdfIn PDF document text
- http://fagumawegoleleb.mypressonline.com/best_monstera_plant.pdfIn PDF document text
- https://bosubunu.weebly.com/uploads/1/3/4/6/134693877/sotanegejutujik.pdfIn PDF document text
- http://mishgen.com/72594329379cp0yh.pdfIn PDF document text
- https://nobakavukip.weebly.com/uploads/1/3/4/3/134373074/c41025b7.pdfIn PDF document text
- http://return-0.com/81922665722qwnwg.pdfIn PDF document text
- https://cdn.sqhk.co/wojidumezu/jizuqLs/gif_to_video_converter_software_free_download.pdfIn PDF document text
- http://forovasax.medianewsonline.com/microsoft_access_2016_requires_visual_basic_for_applications.pdfIn PDF document text
- http://interior.estate/472610613058iqxw.pdfIn PDF document text
- http://clientbluebadge.com/atlante_di_istologia_e_anatomia_microscopica9df10.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/bakoloj/appcleaner_for_windows.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f344.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF344	5264 bytes
SHA-256: `b86c063374c33eeac2bd414c25a4fd62d53105ec39646f169617ed9195c0ac10`

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