PDF malware analysis — malicious · 3179c88c8e3b6364

MALICIOUS

PDF

85.6 KB Created: 2021-08-22 06:57:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24

MD5: 723c061803900295fafbf442b9ac36d5 SHA-1: 1312ea0d21d20e25f50ff052aa9aebd977d98589 SHA-256: 3179c88c8e3b636448ba26fdb30753a9b2e7d8500af252a2139a9c1b54fd7175

196 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection, indicating malicious intent. The document contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm to distribute further payloads. The presence of the 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to evade initial security scanning.

Machine Learning

Nyx PDF Classifier malicious score 0.9974

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
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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://laborke.ru/uplcv?utm_term=how+to+open+bank+of+india+statement+pdf+password PDF link annotation
- https://idd.no/ckfinder/userfiles/files/xukufavisebilifox.pdfIn PDF document text
- http://al-bandak.com/userfiles/file/87155235028.pdfIn PDF document text
- http://starkhigh1972.com/clients/d/dd/dd83d6d7846a033806cdb512e10d7d7c/File/95012666795.pdfIn PDF document text
- https://www.rougeindigo.com/ckfinder/userfiles/files/fujulotoxemokisi.pdfIn PDF document text
- https://confetti-seasons.ru/upload/files/rokejetolimuburajugu.pdfIn PDF document text
- http://gsprojekt.eu/userfiles/files/dudetinipiz.pdfIn PDF document text
- http://uitvaartverzorgingsindex.nl/images/uploads/23368587641.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a0416a6fb28---8369565342.pdfIn PDF document text
- http://beloezoloto.ru/userfiles/file/tikal.pdfIn PDF document text
- http://seasonsblinds.com/uploads/ckfinder/userfiles/files/vujomidikupumagugojotot.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a61657b4bec---verulekofabonugugepad.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16113e38e40bd7---1086912126.pdfIn PDF document text
- http://stsaischoolamritsar.com/slbdavbatala/userfiles/file/2157841339.pdfIn PDF document text
- https://airtelco.com/data/users/_/email/files/xapabe.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/eea25b9fa9c2c8bcd6d5310407e75714/12853965563.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160bd556c853a1---96223007412.pdfIn PDF document text
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/8a95c21b8ac0de669ca71d39c0ed6f2e/zudizaxutomup.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608592707f4fc---gawik.pdfIn PDF document text
- https://netpage.info/userfiles/file/24653826300.pdfIn PDF document text
- https://kolbandibileklik.com/resimler/files/93701245260.pdfIn PDF document text
- https://elmaga.lt/components/com_mijoshop/opencart/image/data/files/82432149320.pdfIn PDF document text
- http://ip-golubev.ru/ckfinder/userfiles/files/pokewunu.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160700ccb294c5---65185681439.pdfIn PDF document text
- https://dubaimotorcycletours.com/uploaded_images/files/61101101736.pdfIn PDF document text
- https://tourpon.kr/FileData/ckfinder/files/20210808_2A8BD6C478998D17.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_off0000e64d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE64D	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000fe64.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE64	10924 bytes
SHA-256: `1cd4c3b3a09f094d268e97d84b9441b6df273dbbb8aa004f72ececc9ae852130`
`font_02_sfnt_off0001177e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1177E	19288 bytes
SHA-256: `bb267f257909916fa8f64444ad0c5b19ffaf15dd89cb65fd5f6fbd5461c1403a`

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