Malicious PDF — malware analysis report

Static analysis result for SHA-256 e69faf5c1c33d505…

MALICIOUS

PDF

85.2 KB Created: 2021-06-25 19:27:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: 1c8b8266451ad3c1cdef8c33aa3a8a11 SHA-1: 4c023f78ea22714dd1750ee77a4bd87334247bd4 SHA-256: e69faf5c1c33d505824fea197aa00873513da6ed2ab9088de102b6f856045489
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is identified as a malicious phishing document, likely part of an advance-fee scam. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting an attempt to distribute further malicious content or redirect users to phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, and the document's structure aligns with lottery or parcel delivery scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://inwebjor.ru/uplcv?utm_term=dr+dolittle+with+robert+downey PDF link annotation
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084519830e6f---ferodanolijazezazurux.pdfIn PDF document text
    • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2b5b12b36a50ff8027a09e5480207729/roketotutogodijimexatite.pdfIn PDF document text
    • http://offerseir.com/basefile/offerseircom/files/13726477409.pdfIn PDF document text
    • http://sbnjl.com/userfiles/files/jolirajarafaninasenuvol.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a62fd4c372f---60791102814.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160918bc8265e3---ninikasogav.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160782e88044e2---2561796830.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/4fed413c09bb51b25c512523854f077c/75551880736.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a2c4fbd2e21---3140963136.pdfIn PDF document text
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/38f25a2bd641f915cbfddf2e3cd42d5c/gaxepuzipafu.pdfIn PDF document text
    • http://fairway.cc/images/blog//file/78359648012.pdfIn PDF document text
    • http://bobhendrix-law.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/96017775596.pdfIn PDF document text
    • https://www.reflectionuk.com/wp-content/plugins/super-forms/uploads/php/files/c04646f5doqodogpp27fenhslv/85688056828.pdfIn PDF document text
    • http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5df078e31---8702901165.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/27106e3bf90824dd006d186635dd81de/43368500365.pdfIn PDF document text
    • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c331b59b9c---rumevogo.pdfIn PDF document text
    • http://a-swiss.com/upload/userfiles/file/xisenojebiw.pdfIn PDF document text
    • http://www.adarshvidhyasankul.org/userfilesfile/9270073195.pdfIn PDF document text
    • https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/a25565fda997033eaa8f6081d9e9dcaf/99265805854.pdfIn PDF document text
    • http://sbnjl.com/userfiles/files/51791588150.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/og22cqfsfqcqjm28nlm526tavj/75947613361.pdfIn PDF document text
    • https://balaji-technology.com/userfiles/file/80424426914.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_off0000ec06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC06 17116 bytes
SHA-256: 9514cac63400b077b3dca088ff273605970f8341cdccb2614adf71f3351ce5e5
font_01_sfnt_off000118a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118A8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000130bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130BF 10356 bytes
SHA-256: fbcd2dd80b27f8a6e1d1d7178cd092404a2ac0501d34f4c3e5192e40fa318fda