Malicious PDF — malware analysis report

Static analysis result for SHA-256 23f65b5203d59730…

MALICIOUS

PDF

55.2 KB Created: 2020-08-23 22:44:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92d8e8d8afa82425ee548f2b9bf32b98 SHA-1: 8a0b9c4db3723c91f10ec965e82d56db748d52f8 SHA-256: 23f65b5203d59730b2025bcce1f7075fd5b4f2703587a9d1a85217a9181fbcba
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This URL is presented within the document body, disguised as a link to a 'Sims 4 magic realm guide'. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify. The presence of a malicious redirector suggests an attempt to lead the user to a phishing or malware distribution site.

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.ru/pify?keyword=sims+4+magic+realm+guide
    • http://files.emerging-talents.net/uploads/1/3/1/3/131398419/pugugipog-lajaked-vorurifola.pdf
    • http://ridifir.loveadelyn.com/uploads/1/3/0/9/130969525/5402300.pdf
    • http://files.christophergennari.com/uploads/1/3/1/1/131163533/7625231.pdf
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/80538661671.pdf
    • https://cdn.shopify.com/s/files/1/0434/0236/3045/files/69913539288.pdf
    • https://cdn.shopify.com/s/files/1/0434/8434/8569/files/55915530955.pdf
    • https://cdn.shopify.com/s/files/1/0435/3723/6119/files/numeros_romanos_del_1_al_10000_completos.pdf
    • https://cdn.shopify.com/s/files/1/0431/0751/6565/files/asrock_a-_tuning_utility.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/wolfgang_puck_food_processer.pdf
    • https://cdn.shopify.com/s/files/1/0431/9943/0815/files/calculus_with_analytic_geometry_solution.pdf
    • https://cdn.shopify.com/s/files/1/0428/6034/7551/files/funatetatarafugum.pdf
    • https://cdn.shopify.com/s/files/1/0432/8230/1094/files/ocean_of_free_books_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/26690632983.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_off000097d2.bin
735d42f1953adcf5aed621c0d688e84186f29e365357c251914fd87436a40cf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97D2 5448 bytes
font_01_sfnt_off0000aa39.bin
9e233f449c5a99283b928f10e2c1927a3353348f9a0e3d29b17576290de2a846		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA39 11300 bytes

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