PDF malware analysis — malicious · f3122f011d8d4090

MALICIOUS

PDF

66.5 KB Created: 2021-08-12 14:02:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12

MD5: 2ef5a288c5e7997416d49a9775bafacd SHA-1: 4f741b0e6912400f41df91c206adaf336eb9fd21 SHA-256: f3122f011d8d4090465a5a0570b33c54d1c51bc8d46b6be8bfc5c0a8cba66d9f

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier further support its malicious nature. The primary attack pattern involves luring users through these links, likely as a precursor to further infection or credential theft.

Machine Learning

Nyx PDF Classifier malicious score 0.5231

Heuristics 5

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
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://parkhighclassof60.com/clients/871169/File/kajazenatigu.pdf In PDF document text
- http://fbchitchcock.org/clients/8/8b/8bdff38a390027835eb24981312b950c/File/61132487579.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e38f4b8e448---9713068152.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbd6087bdd---12879025971.pdfIn PDF document text
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccdc93ab34---gidadimitijeb.pdfIn PDF document text
- https://digireg.at/upload/lotikasojetugotaxem.pdfIn PDF document text
- http://www.gonouvellezelande.com/files/78553496095.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160873e968c063---92653904263.pdfIn PDF document text
- http://chanakol.com/ckfinder/userfiles/files/funitubusakoburofegewi.pdfIn PDF document text
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091046402a0b---27739096045.pdfIn PDF document text
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084785acaa76---xuzanere.pdfIn PDF document text
- https://deitratech.com/userfiles/file/mogarenejone.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a59d68ec486---86656173237.pdfIn PDF document text
- http://orvosvalaszto.hu/uploads/files/fanixug.pdfIn PDF document text
- http://garmagostaran.com/Upload/file/kakugugunurase.pdfIn PDF document text
- https://nepaltrekkinginhimalaya.com/assets/userfiles/files/newoxegewixokufofakux.pdfIn PDF document text
- https://livresdarts.com/ckfinder/userfiles/files/35437568127.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/lgsu3f6q2dmij5fng08aveod29/zufusosetidomilavo.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/dg6f23n7ojqqv001jgbn35nrb7/75457716862.pdfIn PDF document text
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16098330e5b100---74036248753.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c16f6627169---90375600710.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c99b7b6b451---sodesonipelekipafu.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160e678ef698dc---47620927128.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=kantha+sasti+kavasam+mp3+free+download+tamilwirePDF 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_off0000b9b9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB9B9	16216 bytes
SHA-256: `03f65c444c6cacfaae8998c69df382d2a32f21fcf25213ebfb6282243e0e36e6`
`font_01_sfnt_off0000e3c4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE3C4	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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