Malicious PDF — malware analysis report

Static analysis result for SHA-256 da6b0c8ee2cff667…

MALICIOUS

PDF

75.8 KB Created: 2021-03-21 12:29:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6b4d7ef763d2007ab87fbb8112602a71 SHA-1: 98dc9bbc7ae9ef4a6c5731d96ff3f82d6bb5a32a SHA-256: da6b0c8ee2cff667b7c197031b8f6f5a460b2a246493375abc918fe812ef783f
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 0.9998

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://ponafet.ru/wix?keyword=gta+5+unblocked+games PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454682/normal_6019a1d8a16fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476268/normal_5ffe798f38f0d.pdfIn PDF document text
    • http://rimujitibux.mypressonline.com/all_of_me_piano_sheet_music.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/nVgc0SA/axe_alliance_vs_empire_valkyrie_skill_build.pdfIn PDF document text
    • https://cdn.sqhk.co/zezetemirag/gfTMsm1/boris_and_the_dark_survival_apk_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/mefomixut/gNrs5gc/helen_keller_story_of_my_life.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369781/normal_5fd3a86029485.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378604/normal_5fceb0370e8b1.pdfIn PDF document text
    • https://cdn.sqhk.co/xogiwusumo/gP70YXf/lisixoduku.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/shcgdfv/tomekekalobirimezajux.pdfIn PDF document text
    • https://cdn.sqhk.co/fepexeguma/Kjdvcje/safobegituzenu.pdfIn PDF document text
    • http://xofofumireke.mypressonline.com/structures_or_why_things_dont_fall_down.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wadoromutisagar.myartsonline.com/abrsm_grade_5_piano_pieces.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a99fc99-c6f9-4896-9098-7128fb18b971/how_to_pair_big_jawbone_jambox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03d1fd2f-dafe-4a8a-a926-62f87f1abda2/70284107582.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2859628-b59c-4135-b73d-fac4eecc0d3e/motorola_sbg6580_speed_issues.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a96901a-8a67-42f8-a19a-28ef80638440/will_slingbox_work_with_xfinity_x1.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_off0000ea52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA52 5524 bytes
SHA-256: cb737c1bcaa6113fa0114701f73aa256dcc14f8424b72ceb8579ba36c4f087ff
font_01_sfnt_off0000fd11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD11 10864 bytes
SHA-256: 0dae3168e3f9255a89b6209871bb5e001d20caff1199ac9e0299249cd1b9fdae

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