Malicious PDF — malware analysis report

Static analysis result for SHA-256 b49eb1213d806899…

MALICIOUS

PDF

84.1 KB Created: 2021-09-05 15:29:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 4ab07900b1c6b9ce1e3a787c83e2d59c SHA-1: a199e3f7009fead62359dfad7d6181764ca5cfcd SHA-256: b49eb1213d80689987d29b64303d7d24dff6d864d96a271305b6df28b936c432
156 Risk Score

Malware Insights

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

The PDF file contains a link farm, directing users to multiple external URLs. Several of these URLs point to compromised CMS upload directories, indicating a potential distribution point for further malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 6

  • 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
  • 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 https://sofupingame.com/calisma2/files/uploads/vomogewobuloxepedonap.pdf In PDF document text
    • http://accessibilite-salle-eau.com/ckfinder/userfiles/files/49073805153.pdfIn PDF document text
    • http://indianspringhomes.com/userfiles/files/vusevaxanizetixogijisib.pdfIn PDF document text
    • https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/6b6e425576523e3c6501c7e1c1b52ad3/gimimirukurixopatopo.pdfIn PDF document text
    • http://cancunday.com/travela/img/files/14723115891.pdfIn PDF document text
    • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be8d9729062---88487822063.pdfIn PDF document text
    • https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/fdkk4u44r2j45189oso67037ut/bisenudomenamituzopuguvat.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b045e88ac---lexipogivekab.pdfIn PDF document text
    • https://bedandbreakfastchia.it/userfiles/file/nibanonij.pdfIn PDF document text
    • https://inmaabiladi.com/userfiles/files/fagepupabufepup.pdfIn PDF document text
    • http://assushop.com/userfiles/assushop.com/file/bepilawedusovipag.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/1a396ae60b3d9d0ad06fff5f07292a2a/47844184699.pdfIn PDF document text
    • https://webmenuplus.com/images/file/84797138103.pdfIn PDF document text
    • http://arniestribu.com/campannas/file/45049638308.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/8ad3b69437b43ae108c048b8573d3a52/zisode.pdfIn PDF document text
    • http://mgtuae.com/uploads/file/18008341161.pdfIn PDF document text
    • https://semangkamerah.com/contents/files/javogatitisopivagi.pdfIn PDF document text
    • https://medsplus.us/admin/images/file/86510525511.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1608bf8ee895d4---popofudakuxukejefukukib.pdfIn PDF document text
    • http://artospace.com/pics/file/9203195158.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d5073e7106---58289931408.pdfIn PDF document text
    • https://tailormade-sales-marketing.com/userfiles/file/66472536977.pdfIn PDF document text
    • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2cab992ad058c716180af29d2590115c/moxidem.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=apc+1500+smart+ups+service+manualPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In 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.

FilenameKindSourceSize
font_00_sfnt_off0000e15b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f96d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF96D 18228 bytes
SHA-256: 0a33569ea3bdb26cab795b50c1aa94509d040b1ca486e98797b31b59ceb6cd19
font_02_sfnt_off0001293a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1293A 10868 bytes
SHA-256: cf00a2396691fa19b1e566c21e6635be32b678ee870047114d294578f3248241

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