PDF malware analysis — malicious · 1ef8ef01d469b986

MALICIOUS

PDF

74.1 KB Created: 2021-09-20 13:44:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25

MD5: a9bce13563b58bcbae13025ac8babe90 SHA-1: 756552da75ab5ab1139947b7741a2028529df3c2 SHA-256: 1ef8ef01d469b9869dfda5ed1fef674a1401db1e272f2da600ba91bde23d29fe

132 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment. The embedded JavaScript likely facilitates the redirection to malicious sites.

Machine Learning

Nyx PDF Classifier suspicious score 0.4113

Heuristics 6

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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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 https://inwebjor.ru/uplcv?utm_term=download+line+apk PDF link annotation
- https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/numowixofut.pdfIn PDF document text
- http://aitrans.org/UploadFile/file/F1202109041819306303.pdfIn PDF document text
- http://elistaprezentow.pl/userfiles/file/mesijasakadagufapumiken.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613438afbe11b---kijexan.pdfIn PDF document text
- http://hauptlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/24391154616.pdfIn PDF document text
- https://2ruoteexpo.it/ckfinder/userfiles/files/filaz.pdfIn PDF document text
- https://parfumzone.ro/files/file/nilol.pdfIn PDF document text
- https://hyosungulf.com/uploads/file/3595505181.pdfIn PDF document text
- http://eiak.org/upload/editor/files/mokopupotojovezipikig.pdfIn PDF document text
- https://chung-pei.com/userfiles/file/suviledepolirowojipe.pdfIn PDF document text
- http://ukonlinedirect.com/userfiles/files/40302032482.pdfIn PDF document text
- http://gpmpoolandspa.com/ckfinder/userfiles/files/83846237174.pdfIn PDF document text
- http://dominant.name/userfiles/file/jolaxijo.pdfIn PDF document text
- http://yangpupark.com/uploadfile/files/3980789746.pdfIn PDF document text
- http://deforma.it/userfiles/files/fosigajekujumunewe.pdfIn PDF document text
- http://skiflogistics.ru/userfiles/file/8999291218.pdfIn PDF document text
- https://yennenga.org/business_school/uploads/file/67212115272.pdfIn PDF document text
- https://www.alitec.es/js/ckfinder/userfiles/files/saxoverobatewa.pdfIn PDF document text
- http://klinok-saintp.ru/files/pudokusixefapomekogogobu.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/860d3d9eef09f23d84da29766b00f2c6/91051314376.pdfIn PDF document text
- http://gartenmessebau.de/uploads/files/barepawewufusux.pdfIn PDF document text
- http://macabrey-luthier.fr/data/Files/bunenela.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161384ddb8ac27---palajesazutipulevizun.pdfIn PDF document text
- http://digitalqwerty.com/ckfinder/userfiles/files/25263047104.pdfIn PDF document text
- 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_off0000d840.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD840	17716 bytes
SHA-256: `19562e081d07e9e3cef8c884bd2f41ef625e2daf10abb46d23697093ba127426`
`font_01_sfnt_off0001060e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1060E	10196 bytes
SHA-256: `3d90e2f2bb03e8a1630567b1634c16b5adf1ef7d899ae0e7db63bb56b695d6f1`

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