Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8eba08d099d95d0…

MALICIOUS

PDF

68.3 KB Created: 2021-03-28 13:13:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bde784299c28c5cdecaf725aa106afd9 SHA-1: 7181355a3f4206749829a44a2c1dc98505b90a0a SHA-256: f8eba08d099d95d0474ffbbc76aa318b7c02be89dc56dbf243e2e7d77fc73ac1
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/wix?keyword=earth+science+the+physical+setting+answer+key+third+edition PDF link annotation
    • https://cdn.sqhk.co/fodexuxefeba/Chchi0R/dr_driving_2_game_download_uptodown.pdfIn PDF document text
    • http://autokenn.com/konezuwowuvintddj8.pdfIn PDF document text
    • http://sellamorem.com/68901443799kcx1h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455195/normal_60104ace9e970.pdfIn PDF document text
    • http://helpcenterbusiness.xyz/how_to_pair_onn_bluetooth_headset047e1.pdfIn PDF document text
    • http://repair-foto.ru/how_to_write_a_counter_narrativecu0k5.pdfIn PDF document text
    • https://cdn.sqhk.co/nawiwola/xyQ3jjL/60996669217.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480897/normal_603138f709275.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464055/normal_5fce8bf29f313.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459321/normal_5ff97064bbfd9.pdfIn PDF document text
    • https://cdn.sqhk.co/zujubokave/dhjGlge/14892466925.pdfIn PDF document text
    • https://cdn.sqhk.co/fawabanof/d9jd0hh/green_pumpkin_seeds_calories.pdfIn PDF document text
    • http://vkrowl.com/35842072687t7vac.pdfIn PDF document text
    • https://cdn.sqhk.co/fipimomozuk/uidSpjg/lonozo.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/kufazete/how_to_be_a_cashier_at_walmart.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/global_energy_architecture_performance_index_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/avantage_comparatif_dfinition.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/ghost_recon_breakpoint_classes_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/what_kind_of_ink_does_epson_xp_310_use.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/lijojijavopova.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/9452601971.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/botulism_merck_vet_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/22107682706.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_off0000ce53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE53 5552 bytes
SHA-256: 1f8da18d45001f446625ccdd80e2463ecc4b0ef94bd7e0225379e38064b411b9
font_01_sfnt_off0000e14a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14A 10008 bytes
SHA-256: 13d293db1e56d48d81f03c9ade46b48f58c5bb65d4cb7dbee90010aa32c74f5b

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