Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddc7e0a0b6fac8de…

MALICIOUS

PDF

81.7 KB Created: 2020-12-24 21:42:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 687f1a3d541bdfaefc05f4c570853b4c SHA-1: 17567ed79ab6d2f75aa121dd5a83ddf1f1d1e35b SHA-256: ddc7e0a0b6fac8dedf28178fa2d7d055cfba0f9f1d45f47266603a6b6af10202
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. An embedded URI points to 'trafftec.ru', which is likely a phishing or malware distribution domain. The document body contains text related to live NFL streaming, serving as a lure.

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://trafftec.ru/strik?utm_term=watch+live+nfl+sports+streaming+online+free
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/roware/cbc_manual_differential_blood_test.pdf
    • https://uploads.strikinglycdn.com/files/935eb7d7-8d2b-418e-add8-962754df4a16/90335741790.pdf
    • https://s3.amazonaws.com/gezizefefififa/tadijavakobo.pdf
    • https://s3.amazonaws.com/fogibi/dikevug.pdf
    • https://uploads.strikinglycdn.com/files/3cab5ae7-65f8-43df-bf0c-653409e00392/suzuki_piano_book_3_song_list.pdf
    • https://s3.amazonaws.com/lizuseguwix/2011_chevy_malibu_ltz_manual.pdf
    • https://uploads.strikinglycdn.com/files/f459fe3f-b971-4d60-861a-26b065e1dba8/emr_midterm_study_guide.pdf
    • https://uploads.strikinglycdn.com/files/fb106404-7f18-4e46-818b-af38ef483b75/tunun.pdf
    • https://s3.amazonaws.com/daxemo/20638108660.pdf
    • https://s3.amazonaws.com/vuzufexarevima/dodatudaxesup.pdf
    • https://s3.amazonaws.com/jidosatikim/54828358923.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001027d.bin
fafade0f2dda77fd111830e835f111b97acb064b09b0754d318ff1d6a4a862e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1027D 5500 bytes
font_01_sfnt_off00011524.bin
5e49eb560ad141dd82af3d2ecdb81678d2b19c810657fca1931f174b3f550aad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11524 10716 bytes

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