PDF malware analysis — malicious · ce7c4d0926af24d4

MALICIOUS

PDF

79.9 KB Created: 2021-09-13 03:35:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23

MD5: cb16f0d45832442a7ba7f41b0461f901 SHA-1: 9ba21e4ea42e3175b99c9abb2429e696ef4ba426 SHA-256: ce7c4d0926af24d4e9dae4b183d267d7599171e73dbc43d22a2e41bfafb14fe0

146 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which point to disposable domains, suggesting a link farm used for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with common phishing lures.

Machine Learning

Nyx PDF Classifier malicious score 0.9953

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 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.
QR-code redirect lure medium SE_QR_LURE

Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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 http://idealthailand.com/file_media/file_image/file/80269877912.pdf In PDF document text
- http://nuitsdartistes.eu/images/file/luvuk.pdfIn PDF document text
- http://puntolinea.org/userfiles/files/64409039597.pdfIn PDF document text
- https://adsbudget.net/userfiles/file/nunumugaxevose.pdfIn PDF document text
- http://ping-property.com/user_img/files/21562643047.pdfIn PDF document text
- http://sadiqandsons.com/userfiles/files/3113204297.pdfIn PDF document text
- http://beiwendq.com/data/attachment/file/99412960729.pdfIn PDF document text
- http://plymouth-logs.co.uk/ckfinder/userfiles/files/zukitujarariz.pdfIn PDF document text
- http://minuspk.ru/minuspk.ru/userfiles/file/53419632833.pdfIn PDF document text
- https://binarbaidtrading.com/public_html/userfiles/file/porexatabo.pdfIn PDF document text
- https://acryl-bg.com/userfiles/file/56763320958.pdfIn PDF document text
- https://lideregitimpaketleri.com/calisma2/files/uploads/91654710544.pdfIn PDF document text
- https://iohrp.org/f_files/files/zadejon.pdfIn PDF document text
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137994a3b5dc---65463634215.pdfIn PDF document text
- http://cuacongtudongbinhduong.com/upload/files/wuwedelamazubatubapalaku.pdfIn PDF document text
- http://vtdsbinhthuan.vn/public/uploads/userfiles/file/81382058055.pdfIn PDF document text
- http://citranco.com/users/files/31431502157.pdfIn PDF document text
- https://philly.drinkpoint.com/uploads/files/mimutitorigebukitiko.pdfIn PDF document text
- http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/zerukujita.pdfIn PDF document text
- https://ms02bet.com/contents/files/vifonigijuga.pdfIn PDF document text
- http://www.mbk-montage.nl/ckfinder/userfiles/files/30207630641.pdfIn PDF document text
- https://bientannamhuy.com/wp-content/uploads/files/kigajerojadaz.pdfIn PDF document text
- https://www.afoa.org.ar/backend/ckfinder/userfiles/files/65754295503.pdfIn PDF document text
- http://flathead.herosuite.com/userfiles/file/95964289083.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=mix+black+and+purplePDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d3f5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD3F5	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000ec07.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEC07	17832 bytes
SHA-256: `6bfbee5a842fd1ba75fd16c6fa1061603302a312ff2788b1148bc364de5c1d14`
`font_02_sfnt_off00011a52.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11A52	10548 bytes
SHA-256: `666afb0456df9c3301aa76bc586c85ed6f3115355e5a33c84571908254e56874`

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