Malicious PDF — malware analysis report

Static analysis result for SHA-256 7287dae8c4b8dd5d…

MALICIOUS

PDF

90.8 KB Created: 2021-07-21 02:56:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: c28b25410e288b2846779457c41297c2 SHA-1: 76d0382af0c78a91b9529d3e3734a605379d4763 SHA-256: 7287dae8c4b8dd5d3b2d216303055413e0524fd9a604fe29caec9721bf896075
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link farm pointing to multiple domains, with several URLs hosted on compromised WordPress sites. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were directly extracted, the structure and URL patterns are consistent with phishing or malware distribution lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9932

Heuristics 6

  • 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
  • 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 http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/be63d7ab89c2361f606021b4b1cd12a3/vipowetejaxa.pdf In PDF document text
    • http://transinfosoft.com/userfiles/file/97729882632.pdfIn PDF document text
    • http://sjar-tech.com/uploadfile/file///2021052013081094.pdfIn PDF document text
    • https://bczenekar.hu/files/file/zixepobapowefipop.pdfIn PDF document text
    • https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/86c9eec7474df98f0b8e3494e9351096/74270075653.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080a2f51704d---kitiminazajojoneful.pdfIn PDF document text
    • https://centrobrands.com/wp-content/plugins/super-forms/uploads/php/files/408630cb0342c0825cfcfe28a84fad61/majozajukabidekalisotebi.pdfIn PDF document text
    • https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/77798f9b278077bf4acd47feea43a577/14696421348.pdfIn PDF document text
    • https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160dcdd5d06f40---xofuxedijabij.pdfIn PDF document text
    • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/9keqs4gtodsrkm698g924j9ei4/2394327963.pdfIn PDF document text
    • http://altinay-law.com/images/file/liboneguzolezonojotu.pdfIn PDF document text
    • http://u15.ch/ckfinder/userfiles/files/11202231254.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6260679a2---14510774610.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/lfoki45egmni484ojulgkv9s00/42168070845.pdfIn PDF document text
    • https://tsegypt.com/file/nezanefek.pdfIn PDF document text
    • http://beulahcooleycollection.com/clients/870349/File/giremowoxesotovi.pdfIn PDF document text
    • https://mokhalasati.com/userfiles/files/zakiwobumedipe.pdfIn PDF document text
    • http://skupka23.ru/upload/m/68118080899.pdfIn PDF document text
    • http://ranagro.com/files/59420354548.pdfIn PDF document text
    • http://accomplishtheimpossible.com/userfiles_ati/file/91900310824.pdfIn PDF document text
    • https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/02uur198gl32fpgcummi6il087/75016939519.pdfIn PDF document text
    • https://bawwabatrizq.com/userfiles/file/ginutixuburejodu.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160720b39a6931---39390267755.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=crossfit+bodyweight+workouts+no+equipmentPDF link annotation
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e97f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE97F 11448 bytes
SHA-256: 7c13f492fd02a60a9c7a60ae8f2d50d7de425d410bcec406bc85501bf5031377
font_01_sfnt_off000103b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103B8 16084 bytes
SHA-256: a79c9caf7d9fe7d7e6557dd08284a48a0650ee9668136fadcfdab94fba17ddb2
font_02_sfnt_off000118e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118E8 17180 bytes
SHA-256: 9de3bff1a9bd41cbb5e70e2aa52a03cdc1345fc4b618b0a313ec7d6c0c54782d
font_03_sfnt_off0001455d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1455D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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