Malicious PDF — malware analysis report

Static analysis result for SHA-256 04ae77e99ffea1e9…

MALICIOUS

PDF

72.1 KB Created: 2021-03-05 02:18:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0fe91da4be39ef499513bd9f8e373065 SHA-1: 80091bd5c58fdbeb2e532b136a8bde8ac9346359 SHA-256: 04ae77e99ffea1e9ab142238dad6050c1a229a8f0b0f505ff61adb762263b0e6
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xezojetit.ru/award?keyword=panasonic+dect+6.0+plus+3-handset+cordless+phone+manual PDF link annotation
    • http://kayikciakademi.com/holy_name_bible64v1o.pdfIn PDF document text
    • https://cdn.sqhk.co/jiguluzufuwa/jeha5pn/red_swordfish_breeding.pdfIn PDF document text
    • https://cdn.sqhk.co/pijavagoke/icYgdhe/real_racing_3_apk_obb_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427287/normal_600bf65828090.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/hcjaAid/20678670452.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466370/normal_603e5149ef976.pdfIn PDF document text
    • http://small-italy.space/pewefijulo7cmd8.pdfIn PDF document text
    • http://kinokaiff.space/sodifumitevobiwezastr0a0.pdfIn macro / runtime command snippet
    • https://cdn.sqhk.co/kugorazig/jheer8w/free_games_masha_and_the_bear.pdfIn macro / runtime command snippet
    • https://static.s123-cdn-static.com/uploads/4452587/normal_6001c573baf84.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447464/normal_5ff67a9337c6c.pdfIn PDF document text
    • http://maykistore.ru/208116805255ob4z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381528/normal_60172c193a5d3.pdfIn PDF document text
    • https://cdn.sqhk.co/gisepavuv/lNzNhdr/henry_us_survival_rifle._22lr_review.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/176bf5bc-bdd0-48f5-b879-29e775fd03fe/zevexeliketugobujegigof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b26a17a5-26a5-4924-8b0f-466ff62188b1/4332468988.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f3fba02-33d6-49f6-8ca7-3792827a950f/fojugotatezatimubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed2c50d0-aa85-498f-b806-de1dee2e7e59/limapid.pdfIn macro / runtime command snippet
    • https://uploads.strikinglycdn.com/files/eadc390e-c650-47bc-bc1f-7b8105ba733b/26123520184.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65d7f1bd-8821-462a-a97f-feaf250d8ee8/how_to_use_wahl_dog_clippers.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_off0000db72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB72 5840 bytes
SHA-256: a3425bb626b6c614071517f8c5df470ec849320be33ff074f868fb8be169e5c5
font_01_sfnt_off0000ef20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF20 10508 bytes
SHA-256: cde46674e2875199de37692a12f98a5cb9e528f541bd03286497eea68cf9b305

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