Malicious PDF — malware analysis report

Static analysis result for SHA-256 7faae90959cd0e59…

MALICIOUS

PDF

43.3 KB Created: 2020-08-17 16:44:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e2200b72834ebb8bf363d86ebb6cf60 SHA-1: b5fe9379895371c9bea54677a220c580c03772cc SHA-256: 7faae90959cd0e59bce065d242d97e2114f436b2bd5d7f4d77b208be2127917e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the link at https://ttraff.com/pify?keyword=interview+rating+form.+pdf is part of a known malicious redirector infrastructure. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting an attempt to manipulate search engine results or distribute content widely. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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.com/pify?keyword=interview+rating+form.+pdf
    • http://files.elginparkathletics.com/uploads/1/3/1/4/131406413/xikudenaw.pdf
    • https://cdn.shopify.com/s/files/1/0437/5917/3790/files/postpartum_hemorrhage_guideline.pdf
    • https://cdn.shopify.com/s/files/1/0437/5799/4138/files/kawibitololalepulekose.pdf
    • https://cdn.shopify.com/s/files/1/0432/8695/4139/files/adobe_dreamweaver_cs6_full_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/vitamin_b12_deficiency_anemia.pdf
    • https://cdn.shopify.com/s/files/1/0430/9755/5098/files/blockchain_technology_and_applications_from_a_financial_perspective.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/nolonajefobalo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinubigelezegir.pdf
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/damizapezugevalopifij.pdf
    • https://cdn.shopify.com/s/files/1/0435/7187/1912/files/xazukegevasozorexos.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/68350689991.pdf
    • https://cdn.shopify.com/s/files/1/0437/2699/5621/files/giterofujegidoselunu.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006aa9.bin
3032b6408062e7870b80cc1b0b5c201cbd3609caf3741ce25a1b36782eb45367		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA9 5272 bytes
font_01_sfnt_off00007c9a.bin
56da5942f9c2c31fc98c6413c918d1822422937e55cb4e8f67dbc27fab60e7ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9A 10664 bytes

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