Malicious PDF — malware analysis report

Static analysis result for SHA-256 532be5ae644523c4…

MALICIOUS

PDF

41.0 KB Created: 2020-08-28 04:17:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: efefdb5e97ccdeb5bbf9debabac5b9df SHA-1: e8d231d759a7c099ef49412917496aff510cbac8 SHA-256: 532be5ae644523c4791f551af1487f67f219248989403d4766dcd7db628ca6ce
130 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/pify?keyword=is+5kplayer+safe', indicating a likely phishing or malware lure. The presence of a 'download button' heuristic further supports the malicious intent of directing users to external resources.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=is+5kplayer+safe
    • http://tanoje.sallyreynolds.co.nz/uploads/1/3/1/3/131379678/bogoredixejaxeponera.pdf
    • http://files.planoeastbasketball.net/uploads/1/3/0/9/130969151/kinekubozul_vimoxolabima_poritapononefif_bigasinonid.pdf
    • https://cdn.shopify.com/s/files/1/0437/7778/6018/files/livro_do_jogador_d.pdf
    • https://cdn.shopify.com/s/files/1/0433/6232/0536/files/c_malloc_2d_array.pdf
    • https://cdn.shopify.com/s/files/1/0435/3291/0751/files/84472581095.pdf
    • https://cdn.shopify.com/s/files/1/0433/9027/1638/files/81670436160.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/wevujiwopive.pdf
    • https://cdn.shopify.com/s/files/1/0432/8482/4222/files/10858590852.pdf
    • https://cdn.shopify.com/s/files/1/0428/9173/9295/files/tediwipisuwapa.pdf
    • https://cdn.shopify.com/s/files/1/0436/2492/3298/files/lajibejuper.pdf
    • https://cdn.shopify.com/s/files/1/0429/1864/1830/files/marketing_books_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/9700/5981/files/biblia_reina_valera_1960_para_celular.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_off0000612c.bin
c2d82b7a8779a5db4b98ff8e6bbc495d249663b511f6393a7d91b6db2e73c701		 pdf-font-stream PDF embedded font (sfnt) at offset 0x612C 5120 bytes
font_01_sfnt_off000072b6.bin
1eee58110a89877ab28ee5081d5c61178cd5320d7a56dbd4c2b521e9d92d8669		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B6 11144 bytes

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