Malicious PDF — malware analysis report

Static analysis result for SHA-256 db9dcc456da87bc1…

MALICIOUS

PDF

32.2 KB Created: 2020-08-14 19:06:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51b79f8f68ed0d338e1d5b2c04178cd5 SHA-1: e1a3efc9bc77fdec44651a8a63d918ab39a8e2d0 SHA-256: db9dcc456da87bc12bc618f3a48398325c100aff352290971568b1b774f7cf5f
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text related to 'ceo haryana form 12a' and a URL that appears to be a lure. The primary malicious URL is https://ttraff.ru/pify?keyword=ceo+haryana+form+12a, which is likely used to redirect the user to a malicious site. 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.ru/pify?keyword=ceo+haryana+form+12a
    • http://files.josemleyva.com/uploads/1/3/0/7/130775786/pobobifepit.pdf
    • http://files.lswtheatre.com/uploads/1/3/1/8/131857334/6f1c9d4.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/datokozakumukalafoxuvek.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/55087307776.pdf
    • https://cdn.shopify.com/s/files/1/0435/0106/0262/files/names_of_allah.pdf
    • https://cdn.shopify.com/s/files/1/0430/6026/5117/files/nibuvapufapifefezitixexuv.pdf
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/picsart_tutorial_android.pdf
    • https://cdn.shopify.com/s/files/1/0439/2943/6315/files/git_checkout_remote_branch.pdf
    • https://cdn.shopify.com/s/files/1/0451/5568/0410/files/63416226605.pdf
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/95655904093.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/38311146372.pdf
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/jiwolaje.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_off000041a1.bin
cc6e12dffa4d4d8138f747c52ddd8218266cfd0db4d51bba524c6c635f3b33a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x41A1 4988 bytes
font_01_sfnt_off00005279.bin
8a9db8cff6bd4ae190ca6282e8600685f73ac9a16669215c172f9fc420b335ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5279 10244 bytes

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