PDF malware analysis — malicious · 8e1c91c59cb3676d

MALICIOUS

PDF

80.7 KB Created: 2021-07-06 09:06:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27

MD5: 0453da80ea8b9f10ddb4395341ab33e1 SHA-1: d0cd7364e0f6e125427f1caaea5ed88805d366ba SHA-256: 8e1c91c59cb3676d2f8d2662aef94e459fd8f8a4c6e7ed44ca03844d8d43e6e8

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was detected by ClamAV as a phishing trojan. It contains a link farm pointing to multiple compromised WordPress upload directories, suggesting an attempt to host malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution lure.

Machine Learning

Nyx PDF Classifier suspicious score 0.4647

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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
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://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/bc27d19d82ad7588805796d0920e7ea3/nafakavekejijo.pdf In PDF document text
- http://cunningham-reunion.com/clients/7/73/7399477c88ef979e1ad3ac38e42cffcc/File/79282938838.pdfIn PDF document text
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/5c333bf38798be395865f7110d23b942/wenawojulodatifuvojikomuw.pdfIn PDF document text
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/9k2199cpoijnsd2nubo6vit9tp/tilovigalirixapeberewusij.pdfIn PDF document text
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/a696cb4fef0505564315aa9f8d264103/28297329575.pdfIn PDF document text
- https://sandzak.best/wp-content/plugins/super-forms/uploads/php/files/97ecaf965582f2dbf1b4de400c5e3553/80225792888.pdfIn PDF document text
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160923737d8283---50271726040.pdfIn PDF document text
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090ca1cbfd16---77503817334.pdfIn PDF document text
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b13a931f9d2---41657138335.pdfIn PDF document text
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5b6073298---18884358878.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f062b9da52---85298605875.pdfIn PDF document text
- http://myphamhelios.vn/luutru/files/22405274440.pdfIn PDF document text
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160acf9f03655a---53869018628.pdfIn PDF document text
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099a91c7efe8---midakupinogepil.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/dc9b6b0ad683b5a229ca6bb380860b45/35528249428.pdfIn PDF document text
- http://www.juniorcollege.cl/ckfinder/userfiles/files/57363000870.pdfIn PDF document text
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608ded7349445---sopegeva.pdfIn PDF document text
- http://fittbikese.hu/files/file/faluvuzesopes.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160afa4f4df574---2180827203.pdfIn PDF document text
- http://michellesmithscott.com/clients/36670/File/12683961626.pdfIn PDF document text
- http://taiwanglassgroup.cn/userfiles/file/75920511573.pdfIn PDF document text
- https://taichielite.com/louis/taichi/ckfinder/userfiles/files/zigasifir.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=pulleys+in+real+lifePDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fa04.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA04	10204 bytes
SHA-256: `b5354991c60dd652c37731ac526cd9156f0a99705f381068103995e32ea6205b`
`font_01_sfnt_off00011102.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11102	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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