Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd60c7a7d5aa598e…

MALICIOUS

PDF

74.3 KB Created: 2021-02-20 22:19:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b29ed6e0971da1c0fa6bf1b721090969 SHA-1: f0a59efdbadae0643f42542ddd52599cb1c2e0b4 SHA-256: dd60c7a7d5aa598e59ce89c87bfec64be952a3f00cca87fd65460cab164276d9
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 0.9998

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://seumenha.ru/wix?keyword=greenify+apk+full+version PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4412378/normal_5fd78e7202383.pdfIn PDF document text
    • http://brightshopbg.xyz/74142468812nhd8x.pdfIn PDF document text
    • https://cdn.sqhk.co/dusaradezat/5Xhikid/3_kisilik_oyunlar_ates_ve_su_15.pdfIn PDF document text
    • https://cdn.sqhk.co/lakivasulis/ijxijcI/45819301242.pdfIn PDF document text
    • https://cdn.sqhk.co/kezixowog/9Kighjf/matching_pairs_card_game_online.pdfIn PDF document text
    • https://cdn.sqhk.co/gufuluzibos/hgjehiA/20816732906.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/kotodur/home_inspector_report_comments.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/negative_prefixes_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/isometric_projection_solved_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/bodimatonudelolewiki.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/angels_in_america_play.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/54344973915.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/chrome_browser_apk_pure.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/4319676189.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/video_er_professional_extension_for_chrome.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/evernote_8._5_premium_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/miguzovomabunutomefovifu.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_off0000e691.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE691 5152 bytes
SHA-256: 955c49f3840886a2bea01608f4199f397ed28e9506e00a32998092a46e1700c4
font_01_sfnt_off0000f83d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83D 10580 bytes
SHA-256: 2dcd404d157d6205ad744eb7cf25b6a591704844d9caf6002dddf3fc6ad32ddb