Malicious PDF — malware analysis report

Static analysis result for SHA-256 009e36a1488729ba…

MALICIOUS

PDF

184.2 KB Created: 2021-08-08 22:33:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 5ef057cf0d2791619928d6046b6a3f1d SHA-1: abae0e5d101dcd71abd784a4e9e6494528118cd8 SHA-256: 009e36a1488729ba134db1fd4da05731cf3153d04525294f204a135fe56816a8
216 Risk Score

Malware Insights

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

This PDF document is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a brand-impersonation credential phishing lure, specifically impersonating Apple. The document likely attempts to trick users into calling a fraudulent phone number by presenting a fake billing, refund, or security issue, consistent with callback phishing or tech-support scam patterns. The embedded URLs point to various compromised or disposable hosting sites, suggesting a distribution network for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9708

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://wastran.ru/uplcv?utm_term=tobacco+hut+coupons+nyc.
  • 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) 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://wastran.ru/uplcv?utm_term=tobacco+hut+coupons+nyc PDF link annotation
    • http://meijialx.com/ckfinder/userfiles/files/dotuzonojonomaziwakujaxar.pdfIn PDF document text
    • http://tnslib.su/userfiles/files/fakudenujizo.pdfIn PDF document text
    • http://broadmoor80.com/clients/866172/File/27706312115.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b76b3e51585---pidesaweroto.pdfIn PDF document text
    • http://rayanchem.com/d/files/jivoxadetixi.pdfIn PDF document text
    • http://poorclarescork.ie/images/84522846569.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/a406bd51c752430c5d89c7037534edc2/39348918916.pdfIn PDF document text
    • https://przyklejki.pl/userfiles/55637729292.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/g9mm99a4s0kjb96cnevbiib5h3/podenal.pdfIn PDF document text
    • https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/76254bf1cf5e4f20e126944520aa4bfa/3050449631.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160756a9751975---94689040613.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16086711741190---40904818139.pdfIn PDF document text
    • http://nuestratierrapremios.com/campannas/file/gimuliwa.pdfIn PDF document text
    • http://randalljroutson.com/clients/44711/File/vavujajonipatevinefime.pdfIn PDF document text
    • http://yenidenyuzlendirme.com/ckfinder/userfiles/files/geridivemotonizunesixa.pdfIn PDF document text
    • https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/fl6keiviivvjgl0nbm9jra1u3d/68600939122.pdfIn PDF document text
    • https://canevastoilestjean.com/upload/editor/file/lirifavanebekexamere.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/49662274958.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16102c7875be4c---17538470685.pdfIn PDF document text
    • http://stellamaris.cz/userfiles/2007907436.pdfIn PDF document text
    • https://borgopitti.it/userfiles/file/bumires.pdfIn PDF document text
    • https://condicionamentofisico.com/arquivos/file/82252853725.pdfIn PDF document text
    • http://afslab.asia/upload/files/fekozulufu.pdfIn PDF document text
    • http://nedirajtebosnu.net/userfiles/file/zogubumabozimizazovagemu.pdfIn PDF document text
    • https://tylbm.com/Upload/ckeditor/files/99865999711.pdfIn PDF document text
    • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/9519c544992fd50ac3a2b6d5a42719ca/71190486040.pdfIn PDF document text
    • https://centrobrands.com/wp-content/plugins/super-forms/uploads/php/files/5476eea36d996ca7382534f4b1479e96/dupepenevumuka.pdfIn PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cae84208cb2---27483244626.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00026c66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26C66 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0002847d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2847D 10420 bytes
SHA-256: bfd635ed598bf5812f9f43cd83e97168f4f00dbf30ec16f9fc2ebd3cf81822b3
font_02_sfnt_off00029be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29BE5 20884 bytes
SHA-256: ce5f1430c621ba5b645961c3feffb83a543c71740d0952d078f1b98d44906ecc

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