Malicious PDF — malware analysis report

Static analysis result for SHA-256 893d34ac9e98ec41…

MALICIOUS

PDF

58.5 KB Created: 2020-12-31 01:43:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: d619a7b5cc15a9fdd879d081c719cf34 SHA-1: db47b970e22e0860b7d14132f04c622ba820e91c SHA-256: 893d34ac9e98ec41bfeddff897e6eb5f84e4f925ee309c3e0990556978442874
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to 'trafffi.ru', which is flagged as suspicious and likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to 'movie lyrics'. No scripts were extracted, but the presence of external URLs in a malicious PDF is a common tactic for delivering secondary payloads or redirecting users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafffi.ru/strik?utm_term=my+movie+lyrics PDF link annotation
    • https://tiguxenejizowi.weebly.com/uploads/1/3/4/8/134899735/bimobebux_topamanexe_xabejubodo.pdfIn PDF document text
    • https://xubugenaxozuxi.weebly.com/uploads/1/3/4/7/134718294/jarofenawax-joboxopop.pdfIn PDF document text
    • https://cdn.sqhk.co/busosuwik/RyhbpS5/47989447558.pdfIn PDF document text
    • https://nopiroradonumiw.weebly.com/uploads/1/3/4/4/134401961/kataxutenifaxow.pdfIn PDF document text
    • https://tariroviwobin.weebly.com/uploads/1/3/4/7/134715354/jalafadinowamo-juwar.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/jjjegif/nuverujelovazudadulu.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/71882a3f-62ce-4def-a6df-23b9ad86c516/modukedidafokop.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/cycle_race_game_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc270374-1e76-4a94-b40c-097d9428bc69/tattoo_removal_nyc_cost.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/cisco_jabber_for_android_configuration_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/bahubali_2_movie_video_pagalworld.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8a2c55c-b1c8-407b-a4f7-b25f44bf37bb/vezumigojarilasatuji.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_off0000aeb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEB0 4900 bytes
SHA-256: a4141fbd74a27d95975595c50ffd92081ff74ab7b337f5683444cd783d496945
font_01_sfnt_off0000bf61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF61 8888 bytes
SHA-256: 4b5ac2f15971ccbf4867800b206d8dcc37be0f943d7c0da2289d099e0164b7ad