Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e0d221a585b0f4…

MALICIOUS

PDF

35.1 KB Created: 2020-08-02 20:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 157ea926919ec2a2c0c64d6b12933369 SHA-1: 54ccc2df2d9777759f53e5012a0084951a611c07 SHA-256: 00e0d221a585b0f48e4003b99a74573dd39f6679accddb1cda73403cf1f40266
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=wario+land+shake+it+iso'. This suggests the document is designed to lure users to malicious sites, likely for phishing or malware distribution. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ttraff.ru/pify?keyword=wario+land+shake+it+iso
    • http://files.sanjosedelosreynoso.com/uploads/1/3/1/3/131379085/jabomusawatesu_pixuk_wetedumep.pdf
    • http://files.bohemianbrowngurl.com/uploads/1/3/1/8/131857914/jonojolaxupiv.pdf
    • http://files.hamiltoncofairgrounds.com/uploads/1/3/1/6/131636642/purudunifob_bulebitesibad_xafofelu_nizopugudax.pdf
    • http://files.bethinkcreate.com/uploads/1/3/2/7/132740218/70bd1ff781.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/jugakijojemexokowirejis.pdf
    • https://cdn.shopify.com/s/files/1/0431/1898/5372/files/21181575071.pdf
    • https://cdn.shopify.com/s/files/1/0431/2960/2205/files/72646915813.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gowavofopinesifaremoka.pdf
    • https://cdn.shopify.com/s/files/1/0436/2846/2233/files/mdu_4031_uf.pdf
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/nixaziba.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/91241477738.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7095/files/76227250272.pdf
    • https://cdn.shopify.com/s/files/1/0432/8351/3494/files/gagefuxixatanule.pdf
    • https://cdn.shopify.com/s/files/1/0429/4233/3084/files/19091361939.pdf
    • https://cdn.shopify.com/s/files/1/0438/5275/9200/files/10752175103.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/92195487837.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004aa4.bin
f0e23c13cc3f5ef0d0cf2f0a8c63a92f0e305ea276243bd52ad341e2b767ce5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA4 4988 bytes
font_01_sfnt_off00005b9f.bin
c0c0b06d7ff795608e5b39f534303537258235208492814bc680186a0ff7c12a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9F 10652 bytes

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