PDF malware analysis — malicious · 0d9b3f1d5677afd8

MALICIOUS

PDF

91.1 KB Created: 2021-08-02 16:17:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11

MD5: c8b31fbf4cbfeddde3ceb96303175814 SHA-1: c9affd79cd509f69fccc1b9e378239bc27083708 SHA-256: 0d9b3f1d5677afd8b7e01dac2d8c9adfdde7c07b55bbd67500d782406e348574

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute further malware or phishing content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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 http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094281b8de70---kolovanotipuwuzezale.pdf In PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607376aa56d13---70228944651.pdfIn PDF document text
- http://pressvaluation.net/userfiles/file/pozejereleviwatu.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/16080dfdd88982---87117759931.pdfIn PDF document text
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609411b1764b5---xariwaluzu.pdfIn PDF document text
- http://eastendmediation.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zovefewudolajezomikol.pdfIn PDF document text
- https://irish-setter-zucht.info/ckfinder/userfiles/files/54408520358.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c3a51d86be---kagerapuwujane.pdfIn PDF document text
- https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/70cb71bc0d233c878ccd050572785f87/50603587314.pdfIn PDF document text
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/392611d1040f7bd1386dccad3a2f56d2/jaxewizifusigu.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/sl7jgj7n3cmfc006utcq8939fl/18231292260.pdfIn PDF document text
- https://www.mmgrowersg.com/ckfinder/userfiles/files/wilenejipuvufugivuruk.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084fb17e0d83---repizoronufatuzinu.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/s0vc1jk1c1379sjg5hmqohvv11/74563810983.pdfIn PDF document text
- https://x-software.cz/data/file/56399000326.pdfIn PDF document text
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160828afcaac5e---gewaludadijoselenas.pdfIn PDF document text
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6f72acbad---tetasofiguli.pdfIn PDF document text
- https://edarky.net/data/file/taxugopepiduv.pdfIn PDF document text
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/j4n3jo7fj0r4nuu3rojiodntef/mixibonefusotufopoxafu.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aae4eb61dba---powapawuratarowumosibapu.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607a940e20251---97629987849.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160882347682e0---14498264330.pdfIn PDF document text
- https://energooptima.hu/upload/File/19619966051.pdfIn PDF document text
- https://actorconseil.com/files/file/xiwaximewikozulukujimu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=grand+theft+auto+san+andreas+mod+apk+iosPDF 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_off0000fae1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFAE1	10948 bytes
SHA-256: `89f0cd845059f640d97fb2e28f1ba9502f35daaae7e1dd3b6152cb007d51a994`
`font_01_sfnt_off00011413.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11413	18140 bytes
SHA-256: `18abe8fc47f9d59db529bf30a0586b4255d099a13fe8dcf9b1f62e2b4684c1cc`
`font_02_sfnt_off00014420.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14420	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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