PDF malware analysis — malicious · 0214ee85270c517a

MALICIOUS

PDF

85.3 KB Created: 2021-07-05 07:59:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25

MD5: c1084d5cd9bc6c1bc8b744aac08639a7 SHA-1: 2bbdc24261b514e79c10d5cf641893f557b7bbc5 SHA-256: 0214ee85270c517aee09e0bca9d67c75748e6b60c8e0d925cf59f0598fdfe5f7

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs pointing to compromised CMS uploads and disposable hosting, likely intended to redirect users to malicious sites. No scripts were extracted, but the presence of multiple external links suggests an attempt to lure users to external resources.

Machine Learning

Nyx PDF Classifier malicious score 0.9951

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
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/8882ab377e63a2257733940eb836a799/vurekozinuniwasenomer.pdf In PDF document text
- http://orchid-daikanyama.com/userfiles/file/11532813681.pdfIn PDF document text
- http://auldskoolrocks.com/clients/878384/File/panakalunepozagiro.pdfIn PDF document text
- https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/gaksrhd38lcf881lhdid810jb1/97634790296.pdfIn PDF document text
- https://habibitours.com/ckfinder/userfiles/files/sonukikifilijifati.pdfIn PDF document text
- https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/ac69db3b7956a35ec44605fb224596fa/rekajovuvelobod.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160841ec34a959---20969211351.pdfIn PDF document text
- https://vettercycles.ch/userfiles/files/75445526478.pdfIn PDF document text
- https://turismo-galicia.es/ckfinder/userfiles/files/nawigofisadoturej.pdfIn PDF document text
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/b07a0b41f5a6d6916302c1cc4909963c/15634972611.pdfIn PDF document text
- http://atenngo.com/admin/sites/site/documents/7279049457.pdfIn PDF document text
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/f082185f72e8d81905b126d1205b0a32/60528359118.pdfIn PDF document text
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/54ae65f9df61e12ba5c813d9723b41d2/famivaguduzekosolevena.pdfIn PDF document text
- https://nepalonetours.com/userfiles/files/75927894906.pdfIn PDF document text
- http://goraku-sangyo.com/userfiles/file/51145060227.pdfIn PDF document text
- http://synowka.pl/galeria/file/kelivojapuga.pdfIn PDF document text
- http://overtonnation.com/clients/f/f9/f97855507a39dfa58978186db9bff07a/File/36126993027.pdfIn PDF document text
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/mup14laoj7ue0af63p12ujqfv8/zizakowewunusebumedol.pdfIn PDF document text
- https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/a37g6uohsj06pa22h8s03o65vj/9806854931.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9ae7cdd79---wobibokexexow.pdfIn PDF document text
- https://agrimal.pl/userfiles/file/jabivejixataw.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160855eda1d25a---6034097370.pdfIn PDF document text
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/7f098296afc061bcc6f45d5ef172ad4a/dakosate.pdfIn PDF document text
- http://aaykpn.com/uploads/editor/files/53745126146.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=backflow+preventer+leaking+from+topPDF 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_off0000eaa4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEAA4	10952 bytes
SHA-256: `d9f56d61178448d9d38a4043c6e7b94447f5d32921987a5f709c8c4f59a908a2`
`font_01_sfnt_off0001042a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1042A	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00011c3c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11C3C	16844 bytes
SHA-256: `08143bf90e6743fcb67697ace4be98f3344a3bbe86fac6a3411f49b5c9b92f9c`

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