Malicious PDF — malware analysis report

Static analysis result for SHA-256 93a865bde7d9d8bc…

MALICIOUS

PDF

69.3 KB Created: 2021-01-16 21:17:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 9aa19f0fc3187fe5fbf2135561b6333b SHA-1: 85846724d1d2a47038f1f968b7e1beede6db48cd SHA-256: 93a865bde7d9d8bc333fd2461cc14969b596a328a8e84a5bfd04cb17f88a8a01
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, which is a common tactic for phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL is disguised as a search result, likely to trick the user into clicking it.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/wb?keyword=appleton%20wi%20weather%20radar%20wbay In PDF document text
    • https://cdn.sqhk.co/finelega/aFihHxH/50026753986.pdfIn PDF document text
    • https://cdn.sqhk.co/torujazelome/FsifOia/freemcserver._net_upgrade_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/lewulula/gehaTHz/zegepibojam.pdfIn PDF document text
    • https://site-1171554.mozfiles.com/files/1171554/twitter_shut_down_today.pdfIn PDF document text
    • https://site-1194674.mozfiles.com/files/1194674/70201011265.pdfIn PDF document text
    • https://site-1176407.mozfiles.com/files/1176407/netflix_party_extension_on_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/dawafawux/jcKTghb/24440084927.pdfIn PDF document text
    • https://site-1252479.mozfiles.com/files/1252479/report_hooning_gold_coast.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/fizup/reeds_nautical_almanac_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/android_games_similar_to_pokemon_go.pdfIn PDF document text
    • https://s3.amazonaws.com/goveruduzewoxu/85143414080.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/foxezizepegasisax.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/stock_ageing_report_format.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/minecraft_pocket_edition_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/74608853722.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/jajigolokuzapera.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_off0000d25d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD25D 5192 bytes
SHA-256: bbc2c5c59ae87963f7244db8bd30c46bfaa5d617d00e53696253b9c00854cce3
font_01_sfnt_off0000e40e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE40E 10812 bytes
SHA-256: 83a723ef9290ef6ba8af51ec75cab78a18425273c0b54b226f0f61ca1f3f930d

Open this report in the interactive analyzer, or submit your own file for analysis.