Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d10113bded7289d…

MALICIOUS

PDF

73.8 KB Created: 2020-11-12 21:44:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7e9845d948bf51d819e1e11373689699 SHA-1: dd68160d5079a52cca7e09adbd994d3839f94d5f SHA-256: 1d10113bded7289dd41e86c00f75456343fa6d4982c91338cecca7e1c784022a
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. An external URI pointing to 'trafffe.ru' was extracted, suggesting a redirection to a malicious site. The document body, though heavily obfuscated, contains references to 'Xfinity tv guide', indicating a lure to impersonate a service provider.

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://trafffe.ru/aws?utm_term=xfinity+tv+guide+colorado+springs PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426075/normal_5fad565d7e3c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403534/normal_5f95c1888967c.pdfIn PDF document text
    • 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/87fb1819-a9c2-49c4-aee6-f7490a3e51af/51239906765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e793718-8669-4382-854c-f87904d4a3bb/ferikikuwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2aa4511-67fd-4591-83a4-b97204c4c9df/letra_en_ingles_y_espaol_de_don.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/12312979886.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/046404d2-f85f-4ade-8ab3-28052825e9f5/56931452706.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a55af9f5-8a54-45f3-a9af-d277bfe82191/cursed_gaming_wow_mods.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/595ec4cd-aac2-4659-a089-c4535fcb6352/metofaxunejaraso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40bf02cc-1acc-42d6-884e-b52b05a41753/23183740913.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_off0000d57d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD57D 5344 bytes
SHA-256: 1b1340898bae0a9728cb996194706ff7202c32a53541d789b1d89eb39399e181
font_01_sfnt_off0000e7c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C4 10876 bytes
SHA-256: 7a8c33f4dd715106856a7b1673e1e9b51e6bc899f3fc6d23d3170a57e730bf4b
font_02_sfnt_off00010c7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C7D 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c