Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb2e99ca9f9829f…

MALICIOUS

PDF

92.6 KB Created: 2021-07-04 11:53:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 156b38b257d815c2d43b07cb5f84a984 SHA-1: b94b0062c565ba4a4cb3889a4a5c3c7872665878 SHA-256: eeb2e99ca9f9829f181dcceb70f97c7cf6ac82512762ee6dff39f2199c17d1fd
216 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and exhibits characteristics of brand-impersonation credential phishing, specifically impersonating Amazon. The document contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting an attempt to distribute malicious content or phish for user credentials. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://oniceh.ru/uplcv?utm_term=blitzed+drugs+in+the+third+reich+free+pdf.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://oniceh.ru/uplcv?utm_term=blitzed+drugs+in+the+third+reich+free+pdf PDF link annotation
    • http://homestationrealty.com/userfiles/files/50525101725.pdfIn PDF document text
    • http://saovietgroup.com/upload/FCK/file/zerorilore.pdfIn PDF document text
    • https://aymfly.com/aym_image/files/47654699766.pdfIn PDF document text
    • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7b0fbf293---bonotuxisuji.pdfIn PDF document text
    • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ca2eea8e3---44184089299.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d21d9666f72---pekidewo.pdfIn PDF document text
    • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/d9b18f5644bc386f46bee8f82f5cee27/99433791079.pdfIn PDF document text
    • http://bukharaatlanta.com/sites/default/files/file/86991623879.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbc5afa8129---paxedorulabuvulol.pdfIn PDF document text
    • https://htchninc.com/d/files/33809666591.pdfIn PDF document text
    • https://delaneyllc.com/ckfinder/userfiles/files/57433978713.pdfIn PDF document text
    • http://mdc.ir/ckfinder/userfiles/files/6862888729.pdfIn PDF document text
    • http://apexibd.com/uploads/fck_uploads/file/33368092824.pdfIn PDF document text
    • https://alarrabnews.com/images/content/content/file/4288504273.pdfIn PDF document text
    • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6c1e0c09ed---48308499144.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086123a3f7ec---63155109572.pdfIn PDF document text
    • https://mygoaltv.org/ipp/images/uploads/files/92931188852.pdfIn PDF document text
    • http://illinoislivestock.org/userfiles/file/26564901037.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fecd324543---wixokobifurejosawo.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16079b23515e58---49508257937.pdfIn PDF document text
    • http://autoscuolepintozzi.it/userfiles/files/badusesisepegu.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609df014aa9bd---lidutaparaxibumev.pdfIn PDF document text
    • http://brilsports.ro/userfiles/file///damonunelunonomonuletanu.pdfIn PDF document text
    • http://banlinhkienlaptop.com/userfiles/file/69403226625.pdfIn PDF document text
    • 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102EE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011b05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B05 10832 bytes
SHA-256: bd52944382880452a3ceea8050773c61f059458d04a07b949de77ec673129f8c
font_02_sfnt_off000133bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133BB 18176 bytes
SHA-256: 6944227db17c3e97b0926dbae9f21fd6138df036a877f9aa01a33cc9f3f2fd6d

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