Malicious PDF — malware analysis report

Static analysis result for SHA-256 26748d88f561f2e1…

MALICIOUS

PDF

38.3 KB Created: 2020-08-13 06:22:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d7e1c6a18b9785c2e3d45afc5564314 SHA-1: ab414555dab8091561fe3248c6d57ca7588d28fe SHA-256: 26748d88f561f2e1b2fe01b62aaa911701797800f0ecb64cd5b492289a2f6956
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with many links pointing to Shopify domains and one primary link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=magnetic+actuators+and+sensors+brauer+pdf', suggesting the intent is to redirect the user to malicious infrastructure. 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.com/pify?keyword=magnetic+actuators+and+sensors+brauer+pdf
    • http://files.acupunctureforpain.co/uploads/1/3/0/7/130740492/pevakafosu.pdf
    • http://files.thevoicecoop.org/uploads/1/3/1/3/131398308/6aef4784ae.pdf
    • http://files.wendycharlton.net/uploads/1/3/2/6/132695578/6754555.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/tutomevabigexarujojixu.pdf
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/alif_novel_episode_1_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/9087/0423/files/88901725528.pdf
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/giduxizeretewezedogesa.pdf
    • https://cdn.shopify.com/s/files/1/0427/5788/2022/files/39403787044.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/sezunewekoniwodizovusix.pdf
    • https://cdn.shopify.com/s/files/1/0440/9622/5432/files/kevufomizuwejezupi.pdf
    • https://cdn.shopify.com/s/files/1/0436/2380/9187/files/25048210145.pdf
    • https://cdn.shopify.com/s/files/1/0436/3000/2336/files/82093184082.pdf
    • https://cdn.shopify.com/s/files/1/0431/8609/4248/files/81864686077.pdf
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/26997478855.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/denesenopevosapisa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0397/7634/files/guitar_neck_diagram.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_off000055f8.bin
736a8e109e20faf9afbc32a01d0e725d002c3481ba9256126888bfd476958304		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55F8 5436 bytes
font_01_sfnt_off00006880.bin
0d924dbcc23f3f3e18995a597c9642029c07e105bf706b20ded8039b21e4a82c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6880 10504 bytes

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