Malicious PDF — malware analysis report

Static analysis result for SHA-256 56c643712324cf66…

MALICIOUS

PDF

70.2 KB Created: 2020-11-11 22:13:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5d6afb189a6e4c85d8e5559542429a5 SHA-1: 5878e3fc6708fc4e786222f670375bbd601ed0a7 SHA-256: 56c643712324cf6634cf5326c5113fa221a74467db2097102ec76ef71cf9a5b8
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a heuristic indicating an external URI. The embedded URL 'https://trafffi.ru/123?utm_term=dry+ice+hash+potency' is the primary indicator of malicious intent, likely serving as a phishing lure or a download source for further malicious content. No scripts were extracted, but the PDF structure and external URL suggest a phishing or malware delivery attempt.

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=dry+ice+hash+potency
    • https://cdn-cms.f-static.net/uploads/4383925/normal_5f91f23648a82.pdf
    • https://cdn-cms.f-static.net/uploads/4413583/normal_5fa1fc98cf874.pdf
    • https://cdn-cms.f-static.net/uploads/4415526/normal_5fa1e829a8c50.pdf
    • https://cdn-cms.f-static.net/uploads/4389127/normal_5f93a67dbad00.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/widetunipet/gixisekitafazajukiwuv.pdf
    • https://uploads.strikinglycdn.com/files/5045dcb0-f7ac-405d-9bc8-d4178e986896/dates_for_new_england_oireachtas_2019.pdf
    • https://uploads.strikinglycdn.com/files/1ff897a8-af59-4f63-bd80-4cbd9561e94b/83223626655.pdf
    • https://s3.amazonaws.com/xanebavifamopez/67006021743.pdf
    • https://uploads.strikinglycdn.com/files/8c9f4d8f-b4e3-4dd1-a3e2-74247aa8b48f/okey_101_plus_ip_hilesi.pdf
    • https://s3.amazonaws.com/tevigotu/18170515837.pdf
    • https://s3.amazonaws.com/zafaronivaj/sonic_mania_apk_mediafire_apk.pdf
    • https://s3.amazonaws.com/vesubodufisi/garomawigigebafuwazopod.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca77.bin
2b27416449a0f86bb79b154ab22caba20d0dc2e9116ced1f2fe6ec8f02259fdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA77 4876 bytes
font_01_sfnt_off0000db05.bin
a0fefb58416568039d5ad17efa5feb4692c61b2dc82acb0881071652488e3241		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB05 10448 bytes
font_02_sfnt_off0000fe78.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE78 4324 bytes

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