Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1ed2f65dabfc375…

MALICIOUS

PDF

75.6 KB Created: 2021-02-16 17:48:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 302f9e76e007ea39a5afb2abcebdbc07 SHA-1: d0c75b052a6e051762fad36efe1218dc5c298f70 SHA-256: f1ed2f65dabfc37554a64d0cd0d7970d8f2e182074b2a8b9477378088ea64028
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 leading to a malicious domain, likely intended to trick users into downloading further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a 'jump manual pdf free'.

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://baarspo.ru/wix?keyword=jump+manual+pdf+free PDF link annotation
    • http://qqkaxes.xyz/zuzapifuzifedazetulotxf0d.pdfIn PDF document text
    • https://cdn.sqhk.co/linewebozid/nrmGjaS/vobolepuxufij.pdfIn PDF document text
    • http://avto-document.site/37469486065a316i.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/ijflXLB/super_dangerous_trap_music.pdfIn PDF document text
    • https://cdn.sqhk.co/kufomopinu/eBjaPge/bubble_tea_aesthetic_wallpaper.pdfIn PDF document text
    • http://uscarinsurance.info/counter_strike_free_pc_windows_7eietz.pdfIn PDF document text
    • https://cdn.sqhk.co/zeragekub/ifijfgc/70359530758.pdfIn PDF document text
    • https://cdn.sqhk.co/gorokipo/dnUfjeK/rikogaxikojojo.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/fiighib/revue_starlight_re_live_jp_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/dhcjaSg/navupoguxafe.pdfIn PDF document text
    • http://blog-millionaire.buzz/knysna_440_reviewkb3c8.pdfIn PDF document text
    • https://cdn.sqhk.co/vemudumuxixu/2RmifMK/guget.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/pigolo/36486616024.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/amberley_district_state_school_uniform_shop.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/ios_style_notification_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/jacquees_b._e._d_remix_mp4.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_off0000ec44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC44 4996 bytes
SHA-256: 39e0ab5b063cb7e818aa8e648069b7ec4a234c39e1b9b24a0e9115d3af4404d8
font_01_sfnt_off0000fd2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD2E 10660 bytes
SHA-256: 46a4bb5944d431260f959e307aced33d56c8f1fe9a5439b11d9a30fb3b413299