PDF malware analysis — malicious · 7b42d25985779800

MALICIOUS

PDF

83.6 KB Created: 2021-09-06 06:54:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26

MD5: 3ada146e0fe4161f7418ffd3211ddafa SHA-1: 290cbe1e7d8ff22241068f4b9f2d67d2bab2e34d SHA-256: 7b42d25985779800f1cad8a9a2486f9b0246faa84492f22bed35305688d4956a

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely initiated via spearphishing.

Machine Learning

Nyx PDF Classifier malicious score 0.9860

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 http://afgventuregroup.com/cfiles/file/lejabuzafew.pdf In PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee86e4d6f7---megofipefijimafarasobox.pdfIn PDF document text
- https://realestateconnect.us/wp-content/plugins/super-forms/uploads/php/files/lhkekvjhu7pa5snc2il2t0jk72/26189896389.pdfIn PDF document text
- https://henklinders.nl/henklinders/upload/files/wofufewiniko.pdfIn PDF document text
- http://compagniaviaggi.gattinonimondodivacanze.it/themes/userfiles/files/gulewavemuvedevirela.pdfIn PDF document text
- http://ghhs1968.com/clients/5/57/5762190d0a265df614d1f295a7060a42/File/26206169166.pdfIn PDF document text
- http://skrutit-probeg.ru/upload_picture/file/9160021935.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa93687492---2202699150.pdfIn PDF document text
- https://www.kcequipment.com.au/wp-content/plugins/super-forms/uploads/php/files/340b5d7e47f3483859d08aec30e5948c/77973196052.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fcc153b72ad---78103386451.pdfIn PDF document text
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/lkhkkh45a6pknndmrrc8s3jv55/tasivodojifadopema.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/f54e32800022b11eb789abee640c4b0e/podisudibojezisavebonuno.pdfIn PDF document text
- https://toolsatool.com/userfiles/files/mafufasivipezu.pdfIn PDF document text
- https://adlinefor.com/home/webagen/public_html/korn/data/file/gapipurenofogedivi.pdfIn PDF document text
- http://portalpr-b2b.es/img/user///file/_0498102001624685093.pdfIn PDF document text
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fd8ec4dc4f2---bibexozoluwex.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/37044143143.pdfIn PDF document text
- http://shipagents.nl/uploadfiles/file/likinawiforufadexusilinu.pdfIn PDF document text
- http://bezagsecurity.cz/userfiles/fafejeda.pdfIn PDF document text
- http://bobhendrix-law.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/49517175182.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/a2a9a5a4ee4a4e306af98cb0a77e9fbb/gipubopomovijowi.pdfIn PDF document text
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161233cab46fb8---61911499010.pdfIn PDF document text
- http://archidaldegan.eu/userfiles/files/73079928735.pdfIn PDF document text
- http://nceed.kr/pds/userfiles/files/nimuditivifudogebuwaponur.pdfIn PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/s465rnlqc8m2c0j6c5ef14eqf7/68892826346.pdfIn PDF document text
- http://alanurturizm.com/rsm/files/galowinuja.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=oxford+picture+dictionary.pdfPDF 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_off0000decf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDECF	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000f6e6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF6E6	10808 bytes
SHA-256: `5a4c25796f4b77664491032a0d1772bb04ac36a0645b791005aa2416196c911d`
`font_02_sfnt_off00010ffb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10FFB	18916 bytes
SHA-256: `b02af8926f7b313b5290f34d8b1bb95eed2c02debf1e161912f3aa9992b4d28d`

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