PDF malware analysis — malicious · ce92620eef30a772

MALICIOUS

PDF

91.2 KB Created: 2021-07-03 21:34:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16

MD5: c78f0b4f9ffa48a6240756e30047c633 SHA-1: 4d77ffae833f0def4a70a2512584a000310fac28 SHA-256: ce92620eef30a7727201a9ae0141437d5d276f9602d46dfc8017bf3494541f62

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains a link farm pointing to compromised WordPress upload directories, suggesting an attempt to host and distribute malicious files. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9822

Heuristics 7

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160961f144af88---93772275471.pdf In PDF document text
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd106069a7---wojubivetojerana.pdfIn PDF document text
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd709174c53---gagibud.pdfIn PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606dc5b101619---naxalu.pdfIn PDF document text
- http://nhs71.com/clients/d/d9/d9c6bfbc4bbdd207836d30c01fe5869c/File/pupeguxevivoxorixudaxix.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082b9d162634---wowenomaw.pdfIn PDF document text
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073362052bcc---86007859751.pdfIn PDF document text
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/d13021f86358fc0824a33106f840c895/19924273107.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/95621db616bc7a24aa564f795f1cb51a/patatimabe.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/1a781037f044d1270cf67e8cec498a3b/33386165197.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/62466549759e31c4dd380d71f1dc1020/94427242951.pdfIn PDF document text
- http://garmagostaran.com/Upload/file/gadulorawisiwozumeduredi.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c61cd3ac7bd---vilugix.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160712f256459b---40638126400.pdfIn PDF document text
- http://auto-spec.ca/fck/file/lefosigujawaje.pdfIn PDF document text
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608161ce2fe5b---babalusawenamer.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e91bae4412---56201621965.pdfIn PDF document text
- https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/pnpdpjvpvh60u5h7nmvoudrq4p/11741023020.pdfIn PDF document text
- https://ancoraeducacion.com/images/59782931153.pdfIn PDF document text
- http://samrayburnclassof1980reunion.com/clients/873185/File/88281413026.pdfIn PDF document text
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5f6702ead---sevemipajiti.pdfIn PDF document text
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/f37edf9231b69ea79e654dc5c547f51f/12728289050.pdfIn PDF document text
- http://csc0311.com/userfiles/file/20210608150015_rfz9f3.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/bf6uqgf3cavhvc0vfm1qci2jd5/zuson.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160da25475b0f6---54202087037.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607c2cf409dd0---xuwom.pdfIn PDF document text
- http://interel-rus.ru/test/sites/default/files/file/23607719313.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a422c18bbad---51154450691.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=what+is+meant+by+high+frequency+wordsPDF 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_off0000fb8e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB8E	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off000113a0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x113A0	19252 bytes
SHA-256: `0b312204032102c6fe77d6a087dc6105730e42ca81042a87839e71251b75a26b`
`font_02_sfnt_off00014459.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14459	11456 bytes
SHA-256: `893832ce60840e1a284f850045556fc01defae7479e3789779f1048eee90150d`

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