Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea3696d22f1c81cc…

MALICIOUS

PDF

78.7 KB Created: 2021-02-19 02:46:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 9e8180c1c0c4182c68a998a0a608315d SHA-1: e2153ef27aeee302a5dc676280fd6ee8806f36f5 SHA-256: ea3696d22f1c81cc0c9649e26f2898eb65843b7a11174706362c3f07c5ea437f
96 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate maliciousness, with a high risk score. The PDF contains an external URI pointing to a suspicious domain, likely intended to deliver a payload or phish for information. The document body, though heavily obfuscated, suggests a lure related to weight loss, which is a common theme in phishing campaigns.

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://maypoin.ru/aws?utm_term=best+way+to+get+rid+of+wine+belly PDF link annotation
    • https://cdn.sqhk.co/filodomazora/jlgcjfz/celestial_pearl_danio_for_sale_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/sofilita/RynsFgh/jungle_final_run_princess.pdfIn PDF document text
    • http://citrus-fruit.space/silvercloud_gps_tracker_reviewsmif63.pdfIn PDF document text
    • https://cdn.sqhk.co/nujizeres/vwnjgih/emergency_dentist_24_7_lexington_lexington_ky.pdfIn PDF document text
    • https://cdn.sqhk.co/naxiwakiwuv/plhdVt8/pocket_tanks_deluxe_apk_all_320_weapons_download.pdfIn PDF document text
    • https://cdn.sqhk.co/bovuzane/jeZ43MU/disejezisosarak.pdfIn PDF document text
    • https://cdn.sqhk.co/nufopusifa/jfm8hai/mobile_ringtones_old_telugu_songs.pdfIn PDF document text
    • http://flymoney.net/xagexukikesoth5u7.pdfIn PDF document text
    • https://cdn.sqhk.co/tubozejo/ddjdjb9/how_to_make_origami_animals_with_a4_paper.pdfIn PDF document text
    • https://cdn.sqhk.co/golomamone/djjgjhQ/62238100097.pdfIn PDF document text
    • http://liketime.online/484432379891z1j4.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/Yhdxjgq/dark_rider_gloomhaven.pdfIn PDF document text
    • https://cdn.sqhk.co/kamozipu/9Jjdjgj/chocolatier_trogneux_au_touquet.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/jggh0gd/13995741416.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/dedinavesute/1028830811.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/raksha_bandhan_kannada_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/bissell_little_green_advanced_formula_sds.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/dosenokagatexexoras.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/free_truecaller_app_for_android.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_off0000e9c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C4 5248 bytes
SHA-256: 683c57691de2f4f1480afd0a51fc39181a6053159763de9eaac49f149c1a5f82
font_01_sfnt_off0000fbc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC0 10548 bytes
SHA-256: 64d9033aa282204ede7afc5869db3d7da3c4db669484768e1d4b9aa145f04f27
font_02_sfnt_off00011fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FC9 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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