Malicious PDF — malware analysis report

Static analysis result for SHA-256 a31759a83576a482…

MALICIOUS

PDF

67.9 KB Created: 2020-12-20 22:48:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 68c16e7d2b1958328756bea4ff86cf62 SHA-1: 7de7c8f54eeddd22cd4db49ee02f2f75e76fc91b SHA-256: a31759a83576a48262234da5cdc76756d6373e8013c8b59009102618c8298be1
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/123?utm_term=tesla+369+law+of+attraction PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403804/normal_5fc1e41eb2e5e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fdcba3c92f0e27cb84b8f30/t/5fdd246d51ebcd24c897cd46/1608328301632/asbestos_roof_sheets_for_sale_jhb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/324864e1-5f3b-4ab8-9650-10e91a39f7cf/tapakosek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe405e2a-a7c8-4fca-b205-c8e91bd09b56/13093338409.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0eb80e9c-eb84-489c-b7a6-4013f62ade52/66606184296.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fb9c3f5-a052-4e66-8807-5212382d0c1a/21151148898.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61f14d6f-12b8-4c46-bb34-c81c355831e5/sewuzijipuzidotifodaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/96019052083.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a87c644-6cdf-4575-9f16-3be35eeed228/icloud_unlocker_pro_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/705cb388-117f-46fc-b57d-f780a5f37825/czardas_violin_solo_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e586059d-3880-40c3-83d5-c3862b0f1d18/niwikeletopigogawupuvo.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE6D 5392 bytes
SHA-256: 7354bb36705ec48c5c55726385b69b48089708a020b9f8c5c89a099857c29f10
font_01_sfnt_off0000e0d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D5 10184 bytes
SHA-256: 832b3f14c75fdcd2133908abc06566c17d966acfe17f340630be1d9dc952a04e