Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd5e95a6ef3a8ff0…

MALICIOUS

PDF

78.4 KB Created: 2021-03-14 21:37:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ebdfecfb4610ee00aba74600a070923d SHA-1: b211f91359a047fcf8356e62a019ad00d6897630 SHA-256: bd5e95a6ef3a8ff0fc3ec1a2320299bc23835abb08033e1b5f1c04358366044c
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of embedded URLs reinforces the phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/wix?keyword=wakfu+osamodas+guide
    • https://zagumukukawikam.weebly.com/uploads/1/3/4/6/134608037/xewezadar_soxowanovoru_jomukuzor_kekapux.pdf
    • http://glawerry.online/wupesiwbu1a.pdf
    • https://cdn.sqhk.co/bexoninodag/e3fdPjd/1413144339.pdf
    • https://fimozafovobas.weebly.com/uploads/1/3/2/7/132741130/pedububobib_moxuzavak_bejofifelegab.pdf
    • http://zomolejefej.mywebcommunity.org/aerobic_plate_count_procedure.pdf
    • http://novazeku.mygamesonline.org/cantigas_de_escarnio_e_maldizer.pdf
    • http://0fruit.space/9_snf_fizik_kuvvet_ve_hareket_konue73sh.pdf
    • http://cyberghost.store/norbekov_eye_exercises700zg.pdf
    • https://xevuradapo.weebly.com/uploads/1/3/3/9/133986258/62566ef5f416230.pdf
    • https://cdn.sqhk.co/gojogefe/tkghugf/circus_circus_gateway_menu.pdf
    • https://cdn.sqhk.co/nupasoxure/3gftmjh/ximoxidajivawomegop.pdf
    • https://cdn.sqhk.co/xegunorasu/iFqlidj/f1_manager_best_drivers_series_5.pdf
    • http://best-store.club/how_to_find_outer_shell_electronswig72.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/2fbf179e-d2ba-4f32-b5b6-d168209391da/46232204835.pdf
    • https://uploads.strikinglycdn.com/files/bfcc02cc-6c82-4ebc-b04e-40104faa2f5c/98357048512.pdf
    • https://uploads.strikinglycdn.com/files/e2e4949b-65d1-43b4-a7fb-6114881b8477/79207197355.pdf
    • https://uploads.strikinglycdn.com/files/3dbcc1e2-458b-4d3a-bbd8-2500441c2c4b/zivijusutuxelurixoxi.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f45a.bin
9656daa8ad48061f2b2f9444899bb319afc6022f0eac64d621fc420adbd7b3d9
pdf-font-stream PDF embedded font (sfnt) at offset 0xF45A 5176 bytes
font_01_sfnt_off00010600.bin
25cc443f9cf1db23bad6a8716ca4479c7b050e7f46a0db948d811c5c3c28908d
pdf-font-stream PDF embedded font (sfnt) at offset 0x10600 11048 bytes