Malicious PDF — malware analysis report

Static analysis result for SHA-256 6800aeeae1edfcba…

MALICIOUS

PDF

67.9 KB Created: 2021-01-06 03:47:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 891f922d1abc4f104fee53d693e0cd8d SHA-1: 9db17844ad359b719f75134da4a1d09f791c3dbd SHA-256: 6800aeeae1edfcba729a2bab80d231bbbcdc859ba9a476d6cbac249b7b31d450
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating it's a phishing trojan. It contains an embedded URL pointing to 'traffset.ru', which is likely used to redirect the user to a malicious site or download further malware. The document body, though heavily obfuscated, contains text related to 'Narcos cartel wars level guide', suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffset.ru/123?utm_term=narcos+cartel+wars+level+guide PDF link annotation
    • https://cdn.sqhk.co/jekefebiba/2bhcuge/white_noise_generator_program.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417814/normal_5fb46639e03b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446394/normal_5fa2f492ccff4.pdfIn PDF document text
    • https://cdn.sqhk.co/seponidozit/zieigjc/olympic_archery_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/lixejudazeza/Lghqje2/57422534692.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391896/normal_5fa9992f1634b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/86e007d0-885c-4dfd-95d6-3c8b3763aa79/lasiwifuj.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/27280181030.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77f71850-f44b-4108-bd57-4a413e954d2b/fugamosetajidekerutenuxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44d2fa02-7e42-44e0-897d-fff1da9fe453/riraxejabad.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/piziw.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_off0000ceda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEDA 5228 bytes
SHA-256: 3bc2c3d44528d49cc62aabf103b2e3da07bf0b272958305052f2563d81c89109
font_01_sfnt_off0000e0ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0CA 10000 bytes
SHA-256: dec6b5951b719869238b381d3a16e4a6fb606772780a13d0bbe83b53c3ca7a86