PDF malware analysis — malicious · 0bcce86b7285df0c

MALICIOUS

PDF

209.7 KB Created: 2021-09-05 22:22:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24

MD5: f1b83ad615d0bc41118d66b1424a203f SHA-1: f10d0a69fdb8741a8b55fa994d583f1ecb24588d SHA-256: 0bcce86b7285df0c66e0d7a2b9f52979423c6971e228f9bb011d585c67f00055

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, one of which is identified as a potential phishing lure disguised as a software manual. The presence of numerous links to compromised WordPress upload storage suggests a pattern of hosting malicious content. While no scripts were directly extracted, the PDF structure and heuristic firings indicate a malicious intent to redirect users to potentially harmful URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.6885

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.
External URI info PDF_URI

PDF contains an external URL action
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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://coretry.ru/uplcv?utm_term=pinnacle+studio+22+ultimate+user+manual PDF link annotation
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/lj6osunrai9t46nadgrbr0mhhf/38667497382.pdfIn PDF document text
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/96efc6ca9edead127eb3468eb3dfcb75/18432024485.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/o7u6hi4eb4uodpubk1l8hr07v3/godawajodewiba.pdfIn PDF document text
- http://learnazia.com/fck/imagesfile/37618207806.pdfIn PDF document text
- http://kawoka.com/userfiles/file/63509482536.pdfIn PDF document text
- http://chaitraglaze.com/uploads/13957123428.pdfIn PDF document text
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/rifn6p37bdjieeebl7f7111aa1/xiguz.pdfIn PDF document text
- https://mylin.in/ckeditor/ckfinder/userfiles/files/43792560956.pdfIn PDF document text
- http://myconnect-thailand.com/image/upload/File/bekelaxuwiluguvatolu.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5cc20558c---bodowejajevumajuxan.pdfIn PDF document text
- http://effektfilm.de/files/file/34236929474.pdfIn PDF document text
- https://arerp.kr/data/file///garid.pdfIn PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc74c19435e---rokuba.pdfIn PDF document text
- http://podiummoda.ru/userfiles/file/bewujox.pdfIn PDF document text
- http://safarekhoob.ir/basefile/safarekhoobir/files/15926352592.pdfIn PDF document text
- http://ddservice-bmw.pl/userfiles/file/jedowozigabogorejuzi.pdfIn PDF document text
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/d0aggv56sbhtp40b7eklos0iv7/67406366881.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/ace075985e05331e72a6dc5223c2619c/jezezarevoke.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4c18a4fa4---97002194037.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076cc319a5a7---zawulum.pdfIn PDF document text
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/fdf2d45fc36988498a6abc4b11ce5761/savut.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf62b2ea651---guzidabubelezorabevumage.pdfIn PDF document text
- http://almar-bus.pl/userfiles/file/kizawovemituzososodulama.pdfIn PDF document text
- http://i-p-p-c.com/ckfinder/userfiles/files/rodopevaxipajos.pdfIn 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_off0002da98.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2DA98	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0002f2aa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F2AA	21064 bytes
SHA-256: `7463f199287b55abcf06d84a662922b8528573adb98c8727d98193dc2a7dfa2e`
`font_02_sfnt_off00032994.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32994	10752 bytes
SHA-256: `9e581dd64b27919c458ccf7aed5f34c918adfd86ac8a434442554e20aec3ab31`

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