PDF malware analysis — malicious · 80f0a3926c4fbb80

MALICIOUS

PDF

80.7 KB Created: 2021-09-01 05:14:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12

MD5: 79004738be169b59d9ca9ae19227e599 SHA-1: dbf7dd1b2ebbbcbbc08348e7ee8163354a63c192 SHA-256: 80f0a3926c4fbb8088dcfad147dffecb683ef41e4de2957ded1417ebedaad026

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was detected as a phishing trojan by ClamAV. It contains a link farm pointing to various PDF files hosted on compromised websites, likely serving as a lure for users seeking software downloads. The presence of multiple links to potentially malicious content and the ML classifier's high confidence score indicate a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.6426

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://anupbolivia.com/images/files/88352897189.pdf In PDF document text
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a964e810783---41504262211.pdfIn PDF document text
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1607983bf2256d---51874928851.pdfIn PDF document text
- http://www.advokat.com/app/webroot/img/fck/file/xuvaluvixobegubutijuvis.pdfIn PDF document text
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/359011178cb42c5bab2494f3eb2c86bd/pasebixebarapozozebifezi.pdfIn PDF document text
- https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1607b6eac84979---27364621599.pdfIn PDF document text
- http://rbtyutj01.com/userfiles/files/57629790799.pdfIn PDF document text
- https://mtmnetwork.net/uploadEditor/files/zepadixeragokurop.pdfIn PDF document text
- https://www.basur-tedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d885fdcf19---rabusalajelupogusujitag.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16094d1a355a96---pobofik.pdfIn PDF document text
- http://weifong.tw/fckimages/file/julufubotavirukoxesa.pdfIn PDF document text
- http://www.facyt.com.ar/ckfinder/userfiles/files/77244502177.pdfIn PDF document text
- http://goddesshair.net/upload/users/files/57645073369.pdfIn PDF document text
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160e55e083e69d---80312188075.pdfIn PDF document text
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16082db29a3eb0---fekoborabarojetozunonixuw.pdfIn PDF document text
- https://orderpoet.com/ckfinder/userfiles/files/tiregekarodosubojeruwowes.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc30bb1139---tugidavo.pdfIn PDF document text
- http://drprdesaihospital.com/uploads/45539600620.pdfIn PDF document text
- http://blevy.com/ckfinder/userfiles/files/fatizovijuxa.pdfIn PDF document text
- http://kingkady.com/uploadfile/files/93472438313.pdfIn PDF document text
- http://cuhs1981.com/clients/8/82/82ca37c076ec4232796cb58ed009bb3a/File/telasefuwururifoze.pdfIn PDF document text
- http://joyandwowbook.com/upload/file/libukosejuwugirigewowi.pdfIn PDF document text
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607769ab0f575---10322950729.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7fdeca0c2---2980241177.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=minecraft+java+edition+download+apk+for+laptopPDF 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_off0000ed33.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED33	17300 bytes
SHA-256: `ea90d5ac27535e3269c087a2eda933dc10f564ea12560c8eb59e24a1646e8dd6`
`font_01_sfnt_off00011a55.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11A55	10812 bytes
SHA-256: `fb7d50b5e433ebcc337163399bd0e81a07cd15eef40f395de740949b7f464762`

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