Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbd905f78b910750…

MALICIOUS

PDF

157.3 KB Created: 2021-01-20 12:55:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 5001d5d2e1a369f48bbfaa9ef7d7ba91 SHA-1: 631aaf58a8d21543ebb28c0f118f24bdb3c182cd SHA-256: dbd905f78b910750cce8831384cc7b0b02e84551ed9a9efd9b6d700c83777194
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffset.ru/123?utm_term=evolution+of+algae+endosymbiosis PDF link annotation
    • https://nubukagogurug.weebly.com/uploads/1/3/4/4/134495847/walelif-betub-xolokewolur.pdfIn PDF document text
    • https://zokofefedepop.weebly.com/uploads/1/3/1/4/131437243/6490672.pdfIn PDF document text
    • https://vilamewu.weebly.com/uploads/1/3/0/7/130775649/riwunolunulezig.pdfIn PDF document text
    • https://cdn.sqhk.co/xidodaxu/f6hhkie/swing_trading_stocks_to_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/gjddZTf/transfert_pays_orange_tunisie.pdfIn PDF document text
    • https://lemirupuzomive.weebly.com/uploads/1/3/2/8/132814022/sevelubuz-zopiv-bagexanemet.pdfIn PDF document text
    • https://cdn.sqhk.co/ralapogifur/DibxUhf/15094325393.pdfIn PDF document text
    • https://cdn.sqhk.co/fovuxugo/vxgfwxT/fikifubuvopopigurasosidi.pdfIn PDF document text
    • https://cdn.sqhk.co/zewezerezi/kijidUz/makixesofurenumijonasigi.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/ijniaLY/lerevumapugoritu.pdfIn PDF document text
    • https://cdn.sqhk.co/xidatelo/jiqhhut/draw_shark_child.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/zjcDgc5/photo_transfer_app_for_windows.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jexijer/71452211503.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/chapeu_da_formatura_nome.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/vosizaruvujukewuxuvago.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002200b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2200B 5272 bytes
SHA-256: 18009307f4738069231f23aad3a5a874e6e71fdf52d8af748e745dbb343b021b
font_01_sfnt_off000231fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x231FC 12304 bytes
SHA-256: 90af4b2d61cafe6a676f9bb97fe83fc21b6a78d366de6c0c93ceb19b6424794f
font_02_sfnt_off00025a23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25A23 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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