Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 8a38d224b50a62be…

MALICIOUS

PDF / .VIR

433.4 KB Created: 2023-06-24 15:25:16 Authoring application: Adobe PDF Library 9.0 First seen: 2024-05-12
MD5: 5b35bbce44ea613657e0363caa23a2ab SHA-1: d096c1acd9d9abe2ebe77a81c470cc2fa9aa6d03 SHA-256: 8a38d224b50a62be56cea020a6842ed4d3998fa73cc3bfa60123cd9ce966a252
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9048

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
    PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
  • 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://adservice.google.com.sl/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/5c2804a6-aa9c-48a0-92fa-b4e2830d3e94/downloads/machine_learning_tutorial_java.pdf In PDF document text
    • https://adservice.google.com.bn/ddm/clk/478229754;284365575;c;;%3F//img1.wsimg.com/blobby/go/38ef9b17-7208-4190-b984-7cd4d41b9160/downloads/beteselanawon.pdfIn PDF document text
    • https://adservice.google.co.il/ddm/clk/466651624;272226156;i;;%3F//img1.wsimg.com/blobby/go/2ddc9df0-2bb4-4ca1-965b-bbc3c99b0e7d/downloads/offspring_tv_episode_guide.pdfIn PDF document text
    • https://pedutejopabe.yenene.co.za/268592875728939592?pedisabinilosajufafidomifiwifunugidajupajibulelemo=jefedelesalotexusomibopuwatikakixozawapexivogorudexujusanapawikumisabaviwunozesogojaxunujamakojuzufozeborogotumosurifopinigebomasavubekomerawibetilawazemulekulifezowubawebuwawubejibufefajawafadoximivi&utm_kwd=ohm%27s+law+and+power+equation+worksheet+answers&mefimesesafutezuvomapodokejugozinilibufozugizexovabipuwotok=dowuderoxamajotobepezogoxibupamuselajuvebomuwugubabaxugezupizomujexoxusaxowubetatusufixitozawatakeginuzululoxakuvIn PDF document text
    • https://pedutejopabe.yenene.co.za/268592875728939592?pedisabinilosajufafidomifiwifunugidajupajibulelemo=jefedelesalotexusomibopuwatikakixozawapexivogorudexujusanapawikumisabaviwunozesogojaxunujamakojuzufozeborogotumosurifopinigebomasavubekomerawibetilawazemulekulifezowubawebuwawubejibufefajawafadoxiPDF link annotation
    • https://pedutejopabe.yenene.co.za/268592875728939592?pedisabinilosajufafidomifiwifunugidajupajibulelemo=jefedelesalotexusomibopuwatikakixozawapexivogorudexujusanapawikumisabaviwunozesogojaxunujamakojuzufozeborogotumosurifopinigebomasavubekomerawibetilawazemulekulifezowubawebuwawubejibufefajawafadoximivi&utm_kwd=ohm%27s+law+and+power+equation+worksheet+answers&mefimesesafutezuvomapodokejugozinilibufozugizexovabipuwotok=dowuderoxamajotobepezogoxibupamuselajuvebomuwugubabaxugezupizomujexoxusaxowubePDF link annotation
    • https://adservice.google.ws/ddm/clk/424929466;226923624;r;;%3F//img1.wsimg.com/blobby/go/5abeb254-4db6-4b8a-b274-2564c6414265/downloads/foref.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/2ddc9df0-2bb4-4ca1-965b-bbc3c99b0e7d/downloads/tilodazow.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/5abeb254-4db6-4b8a-b274-2564c6414265/downloads/angular_tutorial_tutorialspoint.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/62bebe3a-24c2-4a56-9b26-65d7a4a8233d/downloads/giredudisagax.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/38ef9b17-7208-4190-b984-7cd4d41b9160/downloads/night_manager_job_description_hotel.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/5c2804a6-aa9c-48a0-92fa-b4e2830d3e94/downloads/60206755788.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/ba04d5e7-fe7b-44ff-8025-28c1f20f8e4d/downloads/18045233761.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/b6270536-eb2b-4c0a-bd69-aa2354e7f307/downloads/91024683246.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/b6270536-eb2b-4c0a-bd69-aa2354e7f307/downloads/64908070758.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/ba04d5e7-fe7b-44ff-8025-28c1f20f8e4d/downloads/98862663718.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/38ef9b17-7208-4190-b984-7cd4d41b9160/downloads/vorosaxetanunewu.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/2ddc9df0-2bb4-4ca1-965b-bbc3c99b0e7d/downloads/16444209710.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/b6270536-eb2b-4c0a-bd69-aa2354e7f307/downloads/nirejolag.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/b6270536-eb2b-4c0a-bd69-aa2354e7f307/downloads/kosixereradezod.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/5abeb254-4db6-4b8a-b274-2564c6414265/downloads/39553018993.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/38ef9b17-7208-4190-b984-7cd4d41b9160/downloads/95294981441.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/62bebe3a-24c2-4a56-9b26-65d7a4a8233d/downloads/navigation_gestures_premium_add-on_apk.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00066af5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00066af5.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00066af5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66AF5 17728 bytes
SHA-256: d1650ea4d45cfddc582bb79d64f8a0b2c1fcd81181c4dd824148723f040c410e
font_01_sfnt_off000699ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x699EE 11888 bytes
SHA-256: 11bb211fa3e40332adefb79f1155ffe5d4ae8508e4bb310cc5fecd23521bf47c