Malicious PDF — malware analysis report

Static analysis result for SHA-256 2393945268bdfe6e…

MALICIOUS

PDF

46.4 KB Created: 2020-08-15 07:59:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f1f953de05824bc3a32f9ff74fd160a SHA-1: f037b8143144ac82d2a3e19117da66d8b42d33b9 SHA-256: 2393945268bdfe6ef6b24c28d3817b7a3219f238e1a5d2a74db4a925b44f55ae
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.cc/pify?keyword=android+10+sony+xz1'. This indicates an attempt to lure the user to a malicious site. Additionally, the PDF contains a link farm heuristic, suggesting it's part of a larger SEO poisoning or link distribution scheme. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify, which are likely part of the lure.

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=android+10+sony+xz1
    • http://files.wcpestcontrol.com/uploads/1/3/1/8/131871618/sasekaginododowule.pdf
    • https://cdn.shopify.com/s/files/1/0430/0200/3615/files/accounting_basics_for_interview.pdf
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/kukanigazopepakelevopo.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/66752635225.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/benivat.pdf
    • https://cdn.shopify.com/s/files/1/0432/3367/3380/files/jurunuxapikofa.pdf
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/6365647770.pdf
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/gepesadedumo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6028/2023/files/19321717545.pdf
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/a2_level_english_test_sample.pdf
    • https://cdn.shopify.com/s/files/1/0433/0225/6795/files/51979047899.pdf
    • https://cdn.shopify.com/s/files/1/0432/4121/0024/files/95043893693.pdf
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/93817408730.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_off00006ae9.bin
ddb4a577ac754611383a6a36056ba3c598cfe9ef2d144948c229e63aca5929c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE9 4572 bytes
font_01_sfnt_off00007a73.bin
4ee07788e4282efaaa48edb256a349dd2f28913e2d16a558720e7d81e659c4ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A73 10848 bytes
font_02_sfnt_off00009f4b.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F4B 4324 bytes

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