PDF malware analysis — malicious · 9e18661fbe85e761

MALICIOUS

PDF

81.4 KB Created: 2021-08-20 11:54:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22

MD5: 9359456a330a8cd4155f49c96ee89e5d SHA-1: 94a38f0fed67de993e13817f0085029213c5fe45 SHA-256: 9e18661fbe85e76101562b5b00e13846d65710d2d9bc96496551a8dff7d23c55

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many pointing to compromised WordPress sites, and one specifically to a URL with a 'utm_term' parameter suggesting a phishing or malware distribution lure. The PDF structure itself appears to be a link farm designed to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9909

Heuristics 6

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.
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://garglob.ru/uplcv?utm_term=among+us+mod+menu+no+ban+apk+download PDF link annotation
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/gg1p8u6h3u38fvvu59pm3deta7/50832057065.pdfIn PDF document text
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/27b6ca03437640f7dc30a24354dd2a46/78758117949.pdfIn PDF document text
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/cf5832ad70e0d9fc834ba93e64e6ae97/65911720150.pdfIn PDF document text
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/114f7e3341b0f54a834de775c859c785/24479501282.pdfIn PDF document text
- https://yocarbroker.com/upload/ckfinder/files/3606250224.pdfIn PDF document text
- https://die-elke.de/cms/elke_page_files/file/pofimorivuwimod.pdfIn PDF document text
- https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e5984b3f4a---19104905130.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a97830dba02---jagiw.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/9e1ef135a45322c6ba482171ec15a434/pafokumi.pdfIn PDF document text
- http://medob.org/SITE/files/editor/file/sudesazovojovu.pdfIn PDF document text
- http://www.toptehnik.si/images/90499915759.pdfIn PDF document text
- https://kiaavcilar.com/upload/ckfinder/files/1808078876.pdfIn PDF document text
- http://polyalpan.hu/_user/file/9994279442.pdfIn PDF document text
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607166b4da9bc---4575496157.pdfIn PDF document text
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608778a70e168---72600996697.pdfIn PDF document text
- https://immobiliareincentro.it/allegati/file/mesefaxidu.pdfIn PDF document text
- http://r2doodles.com/clients/4/4a/4a4ed909dcef54c1e3ec6a0ce1d29f2d/File/jogivozizexonowugerop.pdfIn PDF document text
- http://stimatacasa.eu/userfiles/files/64948867273.pdfIn PDF document text
- http://ligonfamilyreunion.org/clients/9/9a/9a44987365eba454cd9b2deda39aa7c0/File/tixuliniril.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0da9e71552---givegesaduneso.pdfIn PDF document text
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/1270965cc3a6b70f00a013515347f439/89865608118.pdfIn PDF document text
- http://aodaibooking.com/FileData/ckfinder/files/20210820_FC41CFE68F40187C.pdfIn PDF document text
- http://bakoca.hu/files/file/danikuxopapozuzibavuniv.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/aa7d0830b5e1879e4d853e6a9dd42bf2/54891292704.pdfIn PDF document text
- http://www.europesolidaire.eu/userfiles/files/xiranezikiwe.pdfIn PDF document text
- http://seosanhrd.com/userfiles/file/25034345025.pdfIn PDF document text
- 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_off0000d877.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD877	17232 bytes
SHA-256: `59d43765ad8a929725d00c4627d0d446f82c4ee13fa31c4f59cb888acb0624e1`
`font_01_sfnt_off000105a9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x105A9	10844 bytes
SHA-256: `026abe469de5cdb24cedb533ea2212c0c76516fd10a9ab80e7f2ddf3c44e002c`
`font_02_sfnt_off00011e5d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11E5D	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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