Malicious PDF — malware analysis report

Static analysis result for SHA-256 60745f2a691c1093…

MALICIOUS

PDF

63.1 KB Created: 2020-12-14 19:51:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: b16c9c338c0636808ef5f112ecfef8bd SHA-1: 73781f0e080ae637cb5e634b6c4bd42acb51e36c SHA-256: 60745f2a691c10934a101eb3879803e6c6fe8cc507da5db8ae6128e4b9dafc48
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'trafffi.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

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=nikon+fe2+manual+download PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/8499d8fe-e1fe-4016-90c5-2ca0e96f9b16/89445463576.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0df4696-c12f-4050-96a7-a801270f22a1/fanatical_prospecting_en_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/narsingh_bhagwan_hd_photo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58fa25ef-fed1-4b70-874b-bda27469fa54/suxemabotokagatedomel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2f2f8cd-4c53-4d12-b158-1093cd2ac658/vokemojujagofifarega.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5355c77c-77af-4239-80d7-78b7032ca634/conclusion_de_investigacion_cientifica.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d12b9cdc-917e-4a05-bdad-300091919aa0/snap_n_go_scooter_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81e70388-d74d-405e-97ea-be6fbe318239/49250157808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6113bac9-5a74-41cf-9c7b-200de1cb3e7e/wijejuneg.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/ionic_compounds_list.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/fimagozavezofunemakex.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aa18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA18 4840 bytes
SHA-256: ec2035221a4b1a8c6b0a549c40ebe80590eced61ae689b0029849ea7660f5180
font_01_sfnt_off0000ba82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA82 12228 bytes
SHA-256: fe8b3f4f8f226879ef7a7d0e39b7793a734a8d22f4f7d87e0b5d701efabd15d8
font_02_sfnt_off0000e20f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE20F 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176