Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce1181e0399eadf9…

MALICIOUS

PDF

67.9 KB Created: 2021-06-05 22:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9fd68adf345345b4ec8271d859df55c2 SHA-1: dd7bdd5bcaa4abe57a51f46ea10fd74a8d0a54f8 SHA-256: ce1181e0399eadf9394b6c5e0d35c6ff83abc87a32deebd452b6b70d8619c808
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document is classified as malicious and contains numerous links to external websites, many hosted on compromised WordPress installations. The document body, though partially corrupted, appears to be a lure related to a religious query, designed to trick users into clicking these links. The presence of multiple distinct hosts and the nature of the links suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8569

Heuristics 5

  • 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
  • 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=cuantas+veces+se+menciona+el+nombre+de+jesus+en+la+biblia PDF link annotation
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160745da66b637---disutuj.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/stdnihqq2gdc0pabks6l6f4pj9/9452695009.pdfIn PDF document text
    • http://thetsaban3watnuea.com/UserFiles/file/bijisivakagudixakozu.pdfIn PDF document text
    • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/ff413c7f1da34a370c767749f03ef65f/juforij.pdfIn PDF document text
    • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/e37374af58f12a17ea68f9a30fe1f663/fibibijoviserur.pdfIn PDF document text
    • http://learningkey.org/userfiles/vujokurexob.pdfIn PDF document text
    • https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/kb1ee2ftc9cr6gf4umn6ce4kr4/42549684641.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf43d2d0c0---16328876061.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ed97d1dae---6103339587.pdfIn PDF document text
    • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/809d0c882bff8860bd12e2bc36db7508/23585603204.pdfIn PDF document text
    • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/727c5dc314724aaeb17f3033532af6c3/wumonuguzedinowi.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084cb7bda613---vezisasidovegiw.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/4mckmog3tmhok7h5p3ekcpvlbs/31472575721.pdfIn PDF document text
    • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160928367dd5da---losiline.pdfIn PDF document text
    • http://anhopphat.com/uploads/files/26809723178.pdfIn PDF document text
    • http://teplospectr.ru/images/files/65154018151.pdfIn PDF document text
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adb9d375e22---xonafumazotok.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d843.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD843 5264 bytes
SHA-256: 5239fe306ab6f313776052d727ec84b68a3cbfb530454c3b74ec3f1fd6775756
font_01_sfnt_off0000ea13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA13 12736 bytes
SHA-256: ea6c89f171a4b140a738379d8a6309ac30b3eb6d6a305544fd83b79cfb10de9f