Malicious PDF — malware analysis report

Static analysis result for SHA-256 d92e1568000071d0…

MALICIOUS

PDF

40.6 KB Created: 2020-08-23 15:06:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76832187646959c3c4d1b610de715d3d SHA-1: c88a6ab1971d9f4e740c1dcf925e4e826a80579d SHA-256: d92e1568000071d0d4e6a35f3b0cb1b4dd4cbabdda99a9c929745305c31ab43e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=tumblr++ios+9'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with 'https://cdn.shopify.com/s/files/1/0432/1751/8751/files/nitoladifarebodemoru.pdf' being a prominent example. The document body, though heavily obfuscated, contains these URLs, suggesting an attempt to direct users to malicious or deceptive content.

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.cc/pify?keyword=tumblr++ios+9
    • http://files.noahministries.org/uploads/1/3/1/6/131637273/jepujo_susedupubivajag.pdf
    • http://tojebale.bluewaterbooks.com/uploads/1/3/0/9/130969306/galelofolovulu.pdf
    • http://bozot.sofiagomezuribe.com/uploads/1/3/1/4/131409090/xefazeza-tenepafena-dimepabanobaki-wewixokota.pdf
    • http://komijova.gandecollective.com/uploads/1/3/1/8/131871745/kubejofi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1751/8751/files/nitoladifarebodemoru.pdf
    • https://cdn.shopify.com/s/files/1/0428/9812/9059/files/89722804187.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/mijeduwirarebajarabon.pdf
    • https://cdn.shopify.com/s/files/1/0428/0814/8127/files/ruzebukotu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0281/3849/files/class_diagram_for_library_management_system.pdf
    • https://cdn.shopify.com/s/files/1/0448/0778/2557/files/paul_wall_sittin_sideways_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0434/6393/4109/files/dububigitazofejosi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/59900614299.pdf
    • https://cdn.shopify.com/s/files/1/0434/0409/9735/files/telugu_calendar_2020_january.pdf
    • https://cdn.shopify.com/s/files/1/0432/9157/4430/files/dichiarazione_sostitutiva_atto_di_notoriet_successione_legittima.pdf
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/amenaza_de_aborto_acog.pdf
    • https://cdn.shopify.com/s/files/1/0431/0797/5317/files/ncert_chemistry_book_class_12.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000590e.bin
1d0923249af9d615273621b016d49e48712b69ba429598f9ebf61a41e2e16969
pdf-font-stream PDF embedded font (sfnt) at offset 0x590E 4868 bytes
font_01_sfnt_off00006973.bin
1fc12a375bcc3be3bb541ba0d2e75a9deb76d5cd30a42549199b3ff9798c8b1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6973 1892 bytes
font_02_sfnt_off00007293.bin
048089c92ddbb7b2eb3d41d38ba833bcf9691cd84185f9f06bf756e09a004fa3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7293 10556 bytes