Malicious PDF — malware analysis report

Static analysis result for SHA-256 01684e37f477f48a…

MALICIOUS

PDF

92.5 KB Created: 2021-07-07 02:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a60d20a3cf157f045bd092357c16b664 SHA-1: 80f24c59082465b0b6917e2eb19f3e5177c60ac4 SHA-256: 01684e37f477f48aebe81d6ba81567450f04d080bf9165914efa8bbb1aa3a96c
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://www.annaleehuber.com/content_files/file/nemewomiwu.pdf
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160753e072303c---pexinurupizivufokikadeb.pdf
    • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2ff9110a4d---pozowulokugoriderexesene.pdf
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6c46f2171f---85937883691.pdf
    • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/fbf39eca257d94d35f13631468740129/butak.pdf
    • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/8185cf1b027237d28c9bcffd45229180/gatizinunekavap.pdf
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b9549a00c94---14231298758.pdf
    • http://geofer.eu/userfiles/files/85511457236.pdf
    • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/rp9bmedk59pdm0t7lhn375bbng/50132344939.pdf
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e44b4d4ec1b---35333984478.pdf
    • http://wmehoa.org/clients/d/df/dff1b85474dadb967ea0c40f6d5e37f8/File/duwadutiwezin.pdf
    • http://chineseclothingonline.net/File/nanaguzuxologu.pdf
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/15807736bd040e1ec34c7c7f3d7b399d/fepezorekapobawe.pdf
    • http://xn--m1age8bh.xn--p1ai/files/file/96930896412.pdf
    • https://amd-export.com/site/upload/file/mamadojaxu.pdf
    • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160ac03d69a78a---2046796205.pdf
    • http://dancedynamicsla.com/clients/38740/File/51233209807.pdf
    • http://xn--80aaae7amexjfdlfdfg.xn--p1ai/files/file/54110844976.pdf
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c94ea235ef---31289722554.pdf
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/df307a696b64d6b6f2f3684e4f6c2137/lijibu.pdf
    • https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/51bb81712a32d347201de52e2ac21178/gimuzafidub.pdf
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096baa652771---86530779492.pdf
    • http://aj-logistics.com/stock/userfiles/file/92097079641.pdf
    • http://dijladentalcenter-qa.com/userfiles/file/bebemelegedababojalab.pdf
    • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/95675e2667b4f6562e901d95cbb13871/mufadimunaponov.pdf
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081cbc44e802---93874149463.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=eso+jewelry+daily
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000107d5.bin
8eace426ac485082a7cdfd76db54cbfe692cabebd0668f71cd653d1f6f10680c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107D5 17256 bytes
font_01_sfnt_off0001350d.bin
9aeef55c273f9d5c61ca5734f8916ddd2be6855d5fffad18b03bd7b2f0b0d7e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1350D 10352 bytes
font_02_sfnt_off00014c8d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14C8D 16792 bytes

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