Malicious PDF — malware analysis report

Static analysis result for SHA-256 fedd9c408ea1eea0…

MALICIOUS

PDF

85.5 KB Created: 2021-06-30 21:20:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e7889ee4cefbe87429bc92e80999f9fb SHA-1: d133f376baffc209a0fa034ed6f97a2ee56ac8f0 SHA-256: fedd9c408ea1eea06e7c396b1b06b21c3e1db7486ade4c74806d59a59ba2167d
256 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1539 Steal or Harvest Data

This PDF document is classified as malicious and exhibits characteristics of a phishing lure. It contains multiple embedded URLs pointing to compromised websites and disposable hosting, suggesting an attempt to redirect users to malicious sites. The heuristics indicate it's designed to harvest MFA codes or recovery secrets, aligning with credential theft tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 8

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://garglob.ru/uplcv?utm_term=us+authentic+meaning
    • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/9b0c8dec2bc5690bd664d688e26aca96/12404026102.pdf
    • http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/80757061725.pdf
    • http://j-line.ca/fck_upload/file/bilomebatubapadogojidule.pdf
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a6bf07d2d---nexuxesesizetevi.pdf
    • http://alexandercdg.com/clients/36029/File/11091460939.pdf
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c61396b8759---fotutewoparipijutubexeno.pdf
    • http://n2nlah.org/UserFiles/file/96168492920.pdf
    • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/7894ad3140a78137d33dc63150139cd3/78515990948.pdf
    • https://www.ergunaygoren.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606da2e925262---govejeralaxuwabumok.pdf
    • https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/s75e5f43i6c34q0i8vgjgeetbh/67449588239.pdf
    • https://swift-tw.com/lcc/upload/files/8650367006.pdf
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bce8d999afb---tijenej.pdf
    • https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/0205c3db2f994215142e0f6e4b50105b/54126130373.pdf
    • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca4415ca8c---fewemigoneniked.pdf
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/e8610cc33c58ba77156503272a8314ca/bebibekoba.pdf
    • https://angkorphotographyguide.com/userfiles/file/55592617521.pdf
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1606d215ba4aeb---sapepofovigoz.pdf
    • http://alwaysfavorentertainment.com/clients/879371/File/dosuvud.pdf
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d667f4e4094---17379428842.pdf
    • http://computerdoki.hu/user/file/71888438393.pdf
    • https://pet-fashion.ro/mm/file/voposazepu.pdf
    • http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/229f7b0259ce537e5ccc2674f2220724/59911016048.pdf
    • https://indobaliart.com/sitefiles/file/13750043857.pdf
    • 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_off0000ed15.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xED15 16792 bytes
font_01_sfnt_off00010527.bin
72ca87303a8ee21e2997582e639547a33e40ae64c28a089fa978ee87d7883305
pdf-font-stream PDF embedded font (sfnt) at offset 0x10527 17020 bytes
font_02_sfnt_off00013162.bin
ff3a3259546f0f8caebc409c775bce0acbe073249da37964a654216568979c23
pdf-font-stream PDF embedded font (sfnt) at offset 0x13162 10520 bytes