Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb1687e03d962ec9…

MALICIOUS

PDF

75.3 KB Created: 2021-04-01 20:20:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 65aaa9540d0d38dd0e46ee30716f1437 SHA-1: 5f50f1c93744604778d0097aa5beb38ac827e6c8 SHA-256: cb1687e03d962ec92f481609332478eed45e8318993a911c62e7f6259cf630a5
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 0.9960

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://jacksth.ru/wix?keyword=ping+pong+atlanta+bar PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4419851/normal_6030447ecedaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393762/normal_603f4d7c80beb.pdfIn PDF document text
    • https://cdn.sqhk.co/baluwofuk/6P3jnqj/42314409516.pdfIn PDF document text
    • https://cdn.sqhk.co/xeloxilava/ugdYaTB/hay_day_hacker._net_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/bomumuxa/e8quWie/best_call_blocker_app_iphone_free.pdfIn PDF document text
    • http://support-copyrighthelpservice-about.com/6998991425766ucf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385028/normal_603a79e4e7f22.pdfIn PDF document text
    • https://cdn.sqhk.co/koletexun/FGtgelR/forest_background_wallpaper_hd.pdfIn PDF document text
    • https://cdn.sqhk.co/paxelababeg/hhdjiSz/fobakeva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386621/normal_5fd9cb7891360.pdfIn PDF document text
    • https://cdn.sqhk.co/zodunoxurob/7n9bjfM/59710225210.pdfIn PDF document text
    • https://cdn.sqhk.co/motuxeneb/jchh1pI/lizejonega.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410679/normal_6013e0ecea0cf.pdfIn PDF document text
    • http://good-production17.site/mask_photo_editor_apkktmsx.pdfIn PDF document text
    • http://ersoil.fun/widipefujuboex7t.pdfIn PDF document text
    • https://cdn.sqhk.co/mojupesonon/hbhjGTc/14708901871.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/09768052-b3b5-443e-b43f-5d8b1d8a8ac5/how_to_whitewash_over_dark_paint.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fb6c540-cbe5-465b-a0ed-658acc16fa2d/diablo_3_season_22_crusader_roland_build.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8fc593b-7601-4013-852e-5e728fe2f80a/17392120331.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e352f198-481f-4dce-a234-9862b8614ac9/sig_p365_vs_p938_recoil.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/how_to_fix_oven_pilot_light.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/bbc_life_reptiles_and_amphibians_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/gutivulivujikibutitig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/205284a4-e5c1-447f-8d2d-68a761609399/6943236409.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/how_to_use_edu_science_telescope_50-600.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/sigazilidozuvumozad.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8DD 4952 bytes
SHA-256: d5544d63b6a022eb35ba315eb9c1b05decb5dac5f6f1d29cb9a8270a672558c1
font_01_sfnt_off0000f9c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C5 11252 bytes
SHA-256: e5fd8fa7070f9418efd9c7d989a4bf66b8c153fd0480fe067b44bd87c5248a53

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