Malicious PDF — malware analysis report

Static analysis result for SHA-256 c700247ab5647641…

MALICIOUS

PDF

67.8 KB Created: 2020-12-29 20:34:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 871f9b4508172a8f15a3f166703cb63f SHA-1: d3610e14f9a106a096b975e2313c0b1169f7925e SHA-256: c700247ab564764197fc331e357caa0724c95cfb3e5dd002b5a11a6a70ef65aa
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'trafficel.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are commonly used to deliver malicious content or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/strik?utm_term=wild+tamer+mammoth PDF link annotation
    • https://cdn.sqhk.co/boxokozofe/icqFbqi/usb_audio_player_pro_forum.pdfIn PDF document text
    • https://cdn.sqhk.co/pevelefotuve/ifZiioZ/color_glow_air_hockey_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418579/normal_5fc29ea10949f.pdfIn PDF document text
    • https://cdn.sqhk.co/daluzowinasu/lieFjhU/25248892886.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421335/normal_5fb8d477dab6e.pdfIn PDF document text
    • https://cdn.sqhk.co/jamolipa/cgdgcWu/52304213732.pdfIn PDF document text
    • https://cdn.sqhk.co/pepitaji/Ujg4ihZ/shelter_from_the_storm_lyrics_song_meanings.pdfIn PDF document text
    • https://cdn.sqhk.co/fukafodifi/AhihOid/51126645363.pdfIn PDF document text
    • https://cdn.sqhk.co/tovasodoj/a4ghgg3/segowuferubixit.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/liluvad/sesinetegepiwewimo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e1879d0-155c-47b4-8c2f-613d039f8476/jofagenalidogobolevax.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/tinokide.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/70810347659.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/5733412477.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/java_heap_analyzer_tool.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8faf66d-c2d3-4ee2-91b8-4de4aa0d0919/dibegek.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_off0000cf3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF3B 4900 bytes
SHA-256: 3c8558257550bf3588ac4cf8e279d9d6d2be95c1f97c2c210238078f3162f4f1
font_01_sfnt_off0000dfbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBF 10248 bytes
SHA-256: 5d87088228ecfa1223d459269bcaa7ffc34ef550dfa2d4ba7f6aebfbb80aa375

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