Malicious PDF — malware analysis report

Static analysis result for SHA-256 75d9f918d273f8e9…

MALICIOUS

PDF

71.1 KB Created: 2021-04-29 23:52:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f27b42f1ca90eac781d2e7ddaa31dc47 SHA-1: d14b0914d27e5a734f082a55766b7f9b469f05ac SHA-256: 75d9f918d273f8e9b440ea7be184ccefc48f69e8d2d843098cca3e79cc5af968
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that point to potentially malicious domains, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/6ffsnh0ej7np0f8c15i25luv6a/zabixifarukodokuxamido.pdf
    • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078c7ffc8aeb---zojibemaramukadixa.pdf
    • https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/daf5f14710e7b80125ac860f112a811b/50186047719.pdf
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/0a23fab375c9796c4a96a7a9a76124eb/23387246651.pdf
    • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/2f1e5f7aa7d7b9b5be1af178a3a11f73/69132747812.pdf
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a73dc68605---fabadilitosize.pdf
    • https://lasvegasrebath.com/wp-content/plugins/super-forms/uploads/php/files/8a498ba7b4e513e31e87a12b11264c35/37641226364.pdf
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/4339d3ab5cb1b50af43607b8bdf28044/17601657279.pdf
    • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a391d97a20bff887e50069b777fb2cbc/pofux.pdf
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/qviodlfejk7m8q9upcp3an4pd4/mimisisojukarilo.pdf
    • https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc257226a1---jonamato.pdf
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e94bb8c425---23665506275.pdf
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/36128c2995747a7851ab400aa93b801b/gogefipopinuxijodej.pdf
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/f0c7d8544e76993d1e6430dd91f4529e/76970284290.pdf
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607da0d0662e7---pejusezesa.pdf
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2f9d9c99f---pojexojazewevobuxemaxos.pdf
    • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/65tu8c2k3vtbk9ccn63rgd80f0/fizedidawijokopevunam.pdf
    • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608513cf7fb0a---kosowax.pdf
    • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/ad85f3b57afbc820dc212b4d6e0d6e32/jofejitifekelano.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=edit+html+email+template+salesforce
    • 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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db1a.bin
7bcbd5e559b2c72dafc17936b8feebf43b56047d9055b96c76f15f2850958fd7
pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1A 5352 bytes
font_01_sfnt_off0000ed20.bin
524bbffb83eeefb1612a95c80b8cd4fbe0181ee419fafb9d51f995b904aad9d8
pdf-font-stream PDF embedded font (sfnt) at offset 0xED20 9888 bytes