Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ae2aad1e0869baa…

MALICIOUS

PDF

42.2 KB Created: 2020-10-02 15:48:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 5b9e4080bfd6e8190bb08f4cbbf077f1 SHA-1: 3fca91c338cc2a7d82b35e25da46779e1f2d3691 SHA-256: 9ae2aad1e0869baadbbaf1613fd57023d9531e832166d549118d6e9ba0673601
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, including a known malicious redirector and a large link farm, suggesting a campaign to drive traffic to malicious sites. The document body text, though partially obfuscated, includes the URL 'https://gettraff.ru/strik?keyword=generateur+code+activation+actia+mul', indicating a lure for users seeking activation codes. The presence of a password-protected archive lure heuristic further supports the intent to conceal malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://gettraff.ru/strik?keyword=generateur+code+activation+actia+mul In PDF document text
    • http://mofokoja.tikvattzion.com/uploads/1/3/0/7/130738591/tebotawefi.pdfIn PDF document text
    • http://files.theonlynatalienicole.com/uploads/1/3/0/8/130814118/xajolasutaxoz.pdfIn PDF document text
    • http://fafuxit.buybishop.com/uploads/1/3/1/4/131406211/3833753.pdfIn PDF document text
    • http://limofut.savemetislighthouse.org/uploads/1/3/2/7/132710677/natiretivip-luvixulidoxatu.pdfIn PDF document text
    • http://files.westandpure.com/uploads/1/3/1/4/131482991/2e895875.pdfIn PDF document text
    • https://site-1037246.mozfiles.com/files/1037246/xonovetexoluvetadimuxilo.pdfIn PDF document text
    • https://site-1037922.mozfiles.com/files/1037922/39991780132.pdfIn PDF document text
    • https://site-1037114.mozfiles.com/files/1037114/4755000915.pdfIn PDF document text
    • https://site-1036991.mozfiles.com/files/1036991/senuxusonove.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0066/2688/files/60027926313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4453/1107/files/sa_wa_dee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0200/3609/files/new_england_primer_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2974/2246/files/46313280383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6095/5798/files/just_like_this_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/45210721336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7977/8979/files/60690209289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/1246/7106/files/suzuki_eiger_400_service_manual.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_off00006567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6567 4996 bytes
SHA-256: 2cfaab11fb1637c7734163a9a3504933a9aa99b76dc41ee4f7f04fdeb0b63905
font_01_sfnt_off00007656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7656 11128 bytes
SHA-256: e433993e48ef0e21a23a937be33ff181eaad5a63110b1b4964454eeb1e90f922

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