PDF malware analysis — malicious · 0d71083ef0d829ab

MALICIOUS

PDF

71.5 KB Created: 2021-10-04 03:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24

MD5: 78e15a299a0ab7d75c94c74e5f98f629 SHA-1: be2df35ea6e82c9a4be041bebece80300520491c SHA-256: 0d71083ef0d829abf65177366cd5e95e8262901a965743ce8683ca634e020fef

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to disposable domains and are structured as link farms. ClamAV detected this file as a phishing trojan. The presence of external URIs and the link farm heuristic strongly suggest a malicious intent to redirect users to potentially harmful sites, likely for phishing or malware delivery.

Machine Learning

Nyx PDF Classifier suspicious score 0.3855

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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://oniceh.ru/uplcv?utm_term=how+to+find+an+equation+for+a+perpendicular+line PDF link annotation
- https://manhremhoangvan.vn/wp-content/uploads/files/64696764417.pdfIn PDF document text
- http://gospel-pour-100-voix.com/fichiers/newsletter/file/lexikefikejojisuvuvit.pdfIn PDF document text
- https://www.amata.org.uk/ckfinder/userfiles/files/xefopugeko.pdfIn PDF document text
- http://rsport.eu/yonexshop/static/file/fusovukuvelokepapuf.pdfIn PDF document text
- https://arhiapp.web-idea.ro/app/webroot/files/userfiles/files/jepoje.pdfIn PDF document text
- https://sieuviet.net/webroot/img/files/gadavavabotajavibizabe.pdfIn PDF document text
- http://woodbridgeabw.com/uploads/files/86915464750.pdfIn PDF document text
- http://eakqshop.com/ckfinder/images_store/files/94710646178.pdfIn PDF document text
- http://guojingmall.com/userfiles/file///11983957102.pdfIn PDF document text
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161314125d9c7a---40803470373.pdfIn PDF document text
- http://alvit-bk.ru/userfiles/file/sirowitulenenugukimo.pdfIn PDF document text
- http://theemasternetworker.com/ckfinder/userfiles/files/nosidatepabup.pdfIn PDF document text
- http://bawaconstructions.com/editorData/file/bopilivebusoruwugi.pdfIn PDF document text
- http://firesecurity.sk/userfiles/file/lewijikimesok.pdfIn PDF document text
- https://barrierball.cl/ckfinder/userfiles/files/56317049726.pdfIn PDF document text
- https://bodymart.in/ckfinder/userfiles/files/36479771739.pdfIn PDF document text
- http://daming-school.com/userfiles/file/mujilimu.pdfIn PDF document text
- http://innovad-ltd.com/userfiles/file/puwatope.pdfIn PDF document text
- https://www.sudicobank.com/ckfinder/userfiles/files/28612626126.pdfIn PDF document text
- http://cnsgawefgl.netsociality.com/upload/files/dakiw.pdfIn PDF document text
- https://sesconbs.org.br/ckfinder/userfiles/files/93930074012.pdfIn PDF document text
- http://lamekatus.com/uploads/ckeditor/files/72588406267.pdfIn PDF document text
- http://www.extramas.com/userfiles/files/17524962182.pdfIn PDF document text
- https://bestcaps99.com/ckfinder/userfiles/files/16571122893.pdfIn 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_off0000b59e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB59E	20192 bytes
SHA-256: `d49a842132943b432835683e6b1d97f12d32541a934f6f32e8aec7a0673b4bd0`
`font_01_sfnt_off0000e9bc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE9BC	10768 bytes
SHA-256: `43959e3b720b82f63da2987152d0684727602298ff6fb297eeaadc2c84d0598a`
`font_02_sfnt_off0001025f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1025F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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