Malicious PDF — malware analysis report

Static analysis result for SHA-256 5020f1aacee31777…

MALICIOUS

PDF

43.6 KB Created: 2020-08-31 07:20:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84e8a06655517951ad85f4149bf5b4e8 SHA-1: 715846560defcf9a39300c6a0cf1b2c879a952d8 SHA-256: 5020f1aacee31777d8ab2a685f50d02af97e0407ff1a5ee383393f399ed855d1
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to a URL that promises a hack for 'Vegas crime simulator 2'. The document body also contains this URL, along with numerous other links to Shopify-hosted PDFs, suggesting a link farm designed for SEO poisoning. The primary malicious URL is the most critical IOC.

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/wix?keyword=vegas+crime+simulator+2+hack+mod+apk
    • https://cdn.shopify.com/s/files/1/0431/6046/9660/files/polajedufujumakozubox.pdf
    • https://cdn.shopify.com/s/files/1/0430/4666/6389/files/ashoka_history_in_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4381/4556/files/lakajupovadoja.pdf
    • https://cdn.shopify.com/s/files/1/0440/8174/1976/files/switch_sound_file_converter.pdf
    • https://static.usrfiles.com/ugd/cb2bed_abafd62bd29d4dae978d7f8a9fdccd2e.pdf
    • https://static.usrfiles.com/ugd/74e9cf_7a216b98df98472c936b70f38da90f0c.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5754/files/widokadivizonazagofe.pdf
    • https://cdn.shopify.com/s/files/1/0428/6201/8716/files/solidworks_2d_drawing_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0428/9649/0655/files/answer_key_for_10_maths_2019.pdf
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/sand_blasting_machine_ql_1006.pdf
    • https://cdn.shopify.com/s/files/1/0435/6908/6623/files/jurikazod.pdf
    • https://cdn.shopify.com/s/files/1/0429/9046/9283/files/vekofudebetovi.pdf
    • https://cdn.shopify.com/s/files/1/0440/2960/8101/files/binomial_worksheet_2_answers.pdf
    • https://cdn.shopify.com/s/files/1/0435/6607/1971/files/.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_off0000568f.bin
f27fd6f37658deb850bcbbfd31ef2da2bd2c9944879c61bc3c86d234e087cddd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x568F 5648 bytes
font_01_sfnt_off000069a6.bin
2de8c476c84e952f9a04f625b1a1e96962810cadfc67a37a8b32fae7bf6524cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A6 10024 bytes
font_02_sfnt_off00008c38.bin
b4d62efa195a2b4e000f8e677d07f67e36e8fcfc99319eaa5118aed7638d171a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C38 16160 bytes

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