Malicious PDF — malware analysis report

Static analysis result for SHA-256 9358cbec27c5b54b…

MALICIOUS

PDF

44.8 KB Created: 2021-03-29 00:12:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 633c471e5c114c2a3fb4e9cc02873e57 SHA-1: ca4f3c2316a3eb5c4a26f27ac46074e2f96f8c12 SHA-256: 9358cbec27c5b54b2153f323d230fccdc8e79287fe7fc3296add03066224a5d4
204 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8172

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 2 text block(s), carries a click-outward action, and is only 44 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://soxebez.ru/award?keyword=interview+kerja+bahasa+inggris+pdf PDF link annotation
    • https://cdn.sqhk.co/bawevabob/iibiaib/descargar_emulador_de_aplicaciones_android_para_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/xenekifa/dVhiBB8/36673403399.pdfIn PDF document text
    • https://cdn.sqhk.co/mujejadalale/jg3yjdm/clarinet_sheet_music_notes.pdfIn PDF document text
    • https://lefipejime.weebly.com/uploads/1/3/4/6/134668800/kijif_mujiwegek.pdfIn PDF document text
    • https://welirupew.weebly.com/uploads/1/3/4/6/134662060/e6059499b89a.pdfIn PDF document text
    • https://nazoturifebigik.weebly.com/uploads/1/3/1/6/131606271/mopadote_dogiri.pdfIn PDF document text
    • https://kadekorik.weebly.com/uploads/1/3/1/4/131453454/7779775.pdfIn PDF document text
    • http://pisibebix.22web.org/zusedojekotusi.pdfIn PDF document text
    • https://cdn.sqhk.co/bareziwo/E3zjdie/64927808041.pdfIn PDF document text
    • https://cdn.sqhk.co/nugizape/atidhc7/fun_meme_soundboard_2020_android.pdfIn PDF document text
    • https://naxejewosusubet.weebly.com/uploads/1/3/4/7/134749601/voguras_zoxesu_zinefawuzawer_xegato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47915202-2787-4c0c-b22f-59a7ae1228f7/is_fifty_shades_darker_on_netflix_canada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/661d621e-b3c1-4e93-bcc7-fe4a2ccd403a/how_to_put_a_kid_in_foster_care.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b859e83-2e1b-4758-82b0-e2069c17a55e/the_waverly_cardiff.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/148eecd0-609e-4504-bc19-1b6ecf670f31/macbeth_act_4_scene_1_study_guide_answers.pdfIn PDF document text
    • http://varijaponinaza.rf.gd/nupexopumudovezuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de13bcbc-ab47-448f-8fe0-a5b726cb57e9/nufopilasesinutojola.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55c1c7c2-e3b6-49ac-b4b3-62e1469eb4ac/jazitas.pdfIn PDF document text
    • http://jaliselisasi.rf.gd/how_to_improve_muscle_ups_crossfit.pdfIn PDF document text

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