Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0f01060c86a2aba…

MALICIOUS

PDF

79.1 KB Created: 2021-07-23 17:50:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-24
MD5: d8ab8903d4ca358567c10c0de7f2b719 SHA-1: 31f9b284eb7211391d4c3f19663a4d87d3844aaa SHA-256: d0f01060c86a2aba4f56ae46889dd881c153c8568c5255b7cd625659e7e62354
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9108

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://lacasedescaraibes.fr/file/92697360676.pdf In PDF document text
    • https://codecs.roimages/file/joperumepumowe.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/kidizawo.pdfIn PDF document text
    • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/16085b4a5e94d3---39482188144.pdfIn PDF document text
    • http://drairtools.com/ckfinder/userfiles/files/83468393498.pdfIn PDF document text
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/sks15qblr7ng571r044dnodf2m/jutisikibetorusokidomin.pdfIn PDF document text
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb946042f6d---38149594279.pdfIn PDF document text
    • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b2ccd350354---23883123500.pdfIn PDF document text
    • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/jivemirabomob.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ec6fa29185---21251910354.pdfIn PDF document text
    • https://takeorders.online/wp-content/plugins/super-forms/uploads/php/files/9sq85l6q1fif8eidf9dkf0ei3n/38299154236.pdfIn PDF document text
    • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/uj3nqqd17745pbkdidg7jd0o6h/midagufanolokafak.pdfIn PDF document text
    • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1676eb0b17---notowemapuwi.pdfIn PDF document text
    • https://vayamcs.com/content_files/files/xarug.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b1830373a64---buluwanitavugefitovol.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160843dbd80948---62009841055.pdfIn PDF document text
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083f6558e928---22419675193.pdfIn PDF document text
    • https://viettrungson.com/media//Files/31468364609.pdfIn PDF document text
    • https://doublehair.center/upload/ckfinder/files/28449872398.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/a65a38d00440d4723424876f11278e01/71001380373.pdfIn PDF document text
    • https://ivaco.it/file/rizovipibizuluxofut.pdfIn PDF document text
    • https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/538d9384c7a89142e15784d2b683d71c/sokivimuvolusafozinunol.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=reading+comprehension+exercises+intermediate+level+pdfPDF 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.

FilenameKindSourceSize
font_00_sfnt_off0000f238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF238 11280 bytes
SHA-256: 8fd1526cbb2a58a98f26e685551f57d8a46a74bca7113f256d311aa913a93ba6
font_01_sfnt_off00010c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C45 17600 bytes
SHA-256: 7a515d82430609fa884b5004df9f11209949461091e7a6881933d33833a2ccf1

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