Malicious PDF — malware analysis report

Static analysis result for SHA-256 8462313662e621ca…

MALICIOUS

PDF

73.2 KB Created: 2021-01-12 05:50:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1d4582a07f4c4a9b776220ae3b2c9ce2 SHA-1: ba4680db8927b7289bd7954b14b831f2a0e602d3 SHA-256: 8462313662e621ca9951ee816200d9c922ee6b7b3d2d5669db87fd726d365a83
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain, identified by ClamAV as a phishing trojan. The document body, though heavily obfuscated, appears to be related to search results for a PDF, suggesting a lure to trick users into visiting the malicious URL. No scripts were extracted, but the presence of the malicious URL and the ClamAV detection strongly indicate a phishing or malware distribution attempt.

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://trafffe.ru/123?utm_term=ciudad+de+cristal+paul+auster+pdf+gratis PDF link annotation
    • https://komavumi.weebly.com/uploads/1/3/0/7/130738531/4125855.pdfIn PDF document text
    • https://vukajikabazaxeg.weebly.com/uploads/1/3/4/7/134711597/1c3ad8118f7b3d.pdfIn PDF document text
    • https://lodoxaravejow.weebly.com/uploads/1/3/4/7/134719504/476456.pdfIn PDF document text
    • https://zanugikujo.weebly.com/uploads/1/3/4/3/134399251/2edbf.pdfIn PDF document text
    • https://cdn.sqhk.co/ludozenidi/gftZRih/bengali_to_english_translation_with_bangla_keyboard.pdfIn PDF document text
    • https://bilujadaju.weebly.com/uploads/1/3/4/7/134772480/wabijugigisufup.pdfIn PDF document text
    • https://cdn.sqhk.co/murajefovel/URVFeKF/israel_war_of_independence_casualties.pdfIn PDF document text
    • https://site-1167986.mozfiles.com/files/1167986/amazing_facts_about_international_space_station.pdfIn PDF document text
    • https://tenivutod.weebly.com/uploads/1/3/1/0/131070705/zamirosusizakufusido.pdfIn PDF document text
    • https://site-1168448.mozfiles.com/files/1168448/billie_eilish_bad_guy_lyric_video_download.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/remeranexe/86001177881.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/21723635315.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/61175810826.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/40214196104.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/backup_android_data_to_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/neck_isometric_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/41274317794.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e13b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13B 5228 bytes
SHA-256: ea7c9cc92e262712477d80c7bcc1a686efff15eac7470e0b94ec1fcdb10d2027
font_01_sfnt_off0000f312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF312 11248 bytes
SHA-256: b347b5f76409473bf701bd3662eff598c160f87dd767e4199d8310f752555be5

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