Malicious PDF — malware analysis report

Static analysis result for SHA-256 053824407fb3a025…

MALICIOUS

PDF

78.1 KB Created: 2021-03-02 13:38:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 97d6f0258b5d9baa7cc322ecd0f273c4 SHA-1: d787080e2e2bae15509ff6df3a1152b66b0bd1ee SHA-256: 053824407fb3a025c64068dbf4cbea02e01c399e915865a4b92fb1a3b6120d7c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://dugedepap.ru/wix?keyword=infinity+pistol+shift+code PDF link annotation
    • http://mitutepoka.medianewsonline.com/historia_do_carnaval_no_brasil_wikipedia.pdfIn PDF document text
    • http://wewogokuwidu.mywebcommunity.org/deruvokaj.pdfIn PDF document text
    • http://bugosegu.scienceontheweb.net/4206424290.pdfIn PDF document text
    • https://cdn.sqhk.co/fepotifomowa/jaXmiuZ/pico_question_examples_oncology_nursing.pdfIn PDF document text
    • https://cdn.sqhk.co/vakujediraw/c2nidif/kosup.pdfIn PDF document text
    • http://wejuzofibab.medianewsonline.com/27618789440.pdfIn PDF document text
    • https://semufukat.weebly.com/uploads/1/3/1/8/131857602/e6c38f28462.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387036/normal_5fd6d13a1b49a.pdfIn PDF document text
    • https://cdn.sqhk.co/tewokozogop/mZifYja/terra_mystica_board_game_arena.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/fXabvw8/65265617874.pdfIn PDF document text
    • https://dijizuwuke.weebly.com/uploads/1/3/3/9/133999270/xegevanifez-gusizipuror.pdfIn PDF document text
    • https://zalogarigi.weebly.com/uploads/1/3/2/6/132695681/nefaxewuxiwumon.pdfIn PDF document text
    • https://cdn.sqhk.co/bimonabozo/Xjgphjv/wikekibolutowaso.pdfIn PDF document text
    • https://mesofuxemivoge.weebly.com/uploads/1/3/1/3/131398024/6745364.pdfIn PDF document text
    • https://cdn.sqhk.co/talexadu/2QSNfii/52459750118.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ea89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA89 4976 bytes
SHA-256: bc29b6aeb2ad918b8e951b4cae278e0cc2b989eecdb8a4da05b885ba1485baa9
font_01_sfnt_off0000fb8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB8A 14904 bytes
SHA-256: 6e4267d5b7fb57f6e5d1ec2a9d0bbc116297a109e84b95aa0be0c93a9e95abe0