Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 8f3c21968a5790ed…

MALICIOUS

PDF / .VIR

342.1 KB Created: 2023-10-22 15:33:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2024-05-27
MD5: ba4b5c47ddbf205e852b0f770d291c68 SHA-1: 98608912750e732dfa178d54bd2bd03c86cb2f12 SHA-256: 8f3c21968a5790ed7b81cb2d8257cbb4c8ff6c7613b69c8831f9d75f7f296855
146 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3970

Heuristics 6

  • 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.
  • 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://pevaxagezulebad.eelruxe.com/31396135616328040355537693?gadokigigikajumeteruvodamokonapaxorumususipixonisawanujexofanenaxigovenotojonenalejavad=nepujomagupesaragazinajoladugitibiwekivevopewupefaxibixegovaxigumemadunebonorowazepifozuridipokajufatopuzujoboganizadinaxofusilixafiwumevigimoxiwiruvivojelopasedurolikekakulomoletewidulavamepijogolidajidabar&utm_kwd=minolta+xe+1+repair+manual&gosotikadireluzoguxiwalesolugizuxofawimoduwabomebufuxafalumatijuguvimat=vanomideguwofoxipubeburixusewufebotapagiwaramibobebuvejozubafojegagodumivowinebepukukezedazezowutomidujagamaninusaliwamuvorirezamape In PDF document text
    • https://pevaxagezulebad.eelruxe.com/31396135616328040355537693?gadokigigikajumeteruvodamokonapaxorumususipixonisawanujexofanenaxigovenotojonenalejavad=nepujomagupesaragazinajoladugitibiwekivevopewupefaxibixegovaxigumemadunebonorowazepifozuridipokajufatopuzujoboganizadinaxofusilixafiwumevigimoxiwiruvPDF link annotation
    • https://pevaxagezulebad.eelruxe.com/31396135616328040355537693?gadokigigikajumeteruvodamokonapaxorumususipixonisawanujexofanenaxigovenotojonenalejavad=nepujomagupesaragazinajoladugitibiwekivevopewupefaxibixegovaxigumemadunebonorowazepifozuridipokajufatopuzujoboganizadinaxofusilixafiwumevigimoxiwiruvivojelopasedurolikekakulomoletewidulavamepijogolidajidabar&utm_kwd=minolta+xe+1+repair+manual&gosotikadireluzoguxiwalesolugizuxofawimoduwabomebufuxafalumatijuguvimat=vanomideguwofoxipubeburixusewufeboPDF link annotation
    • https://jimdo-storage.global.ssl.fastly.net/file/2fde8006-6c07-420e-93eb-7a29aba275c9/bejex.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/72002e93-6c32-49d0-9e86-18495fae555e/465cd2e4-6140-43b2-96a9-f497057e30b6.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/f8faa9ad-c9fc-446d-b4ef-b9f675cc0b3a/downloads/83979707845.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64eddcca5892c64db26f13bb/653243212cb29c000a67554a_muzukifizurovifegifor.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/5e9f3df0-590f-421a-8e3d-9c819c769abe/d97d02bf-21e4-4fa4-8aad-da8e79516a54.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64f852a7318057bf6eb8e1a1/65324314d374daef05ee247b_66030559778.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_off00050f26.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00050f26.bin)
🗂 Part of campaign: shared payload a02f67deb0 41 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050f26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50F26 16144 bytes
SHA-256: 980cbdb9622dab66a188f7c493231e8d1538351bb7e4d6c3209c14430d04aa6d
font_01_sfnt_off000538e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x538E8 8940 bytes
SHA-256: a02f67deb084b7ce8e02d7004994a9dd7e3132fe24919a42c6f0df6ed367c188