Malicious PDF — malware analysis report

Static analysis result for SHA-256 36cd69e17e4cb205…

MALICIOUS

PDF

61.9 KB Created: 2020-08-06 01:27:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6474e0585e17ac7d16c9a8f66e3e0de9 SHA-1: 81907a220a79d04216ac630f33a47f7ed9edf969 SHA-256: 36cd69e17e4cb2059203cf1ad7c56445f52e908a9f9bcfd756c4232b0b973578
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though partially corrupted, contains the URL https://ttraff.cc/pify?keyword=ametropia+definicion+pdf, which is also listed as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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=ametropia+definicion+pdf
    • http://files.createarts.org/uploads/1/3/2/8/132815882/filovegapozafifote.pdf
    • http://files.smarttc.co.uk/uploads/1/3/1/0/131071145/kimubajigubikon.pdf
    • http://files.rileystevens.org/uploads/1/3/0/8/130813898/lusitojuja.pdf
    • http://files.theolivercurdtrust.org/uploads/1/3/1/4/131407424/gupafugadub_jibidig_junenorinitijim.pdf
    • https://cdn.shopify.com/s/files/1/0434/2490/7414/files/zuxoparad.pdf
    • https://cdn.shopify.com/s/files/1/0436/2525/0974/files/how_to_upload_a_folder_to_github.pdf
    • https://cdn.shopify.com/s/files/1/0439/2812/5595/files/wepevukikeziwivodipi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9155/8551/files/84032244664.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/fox_racing_logo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8354/6267/files/zojifekizimetewide.pdf
    • https://cdn.shopify.com/s/files/1/0438/2310/4162/files/narunipezanebibesimega.pdf
    • https://cdn.shopify.com/s/files/1/0430/1737/1797/files/31468772014.pdf
    • https://cdn.shopify.com/s/files/1/0450/8853/8776/files/fisiopatologia_de_acidosis_respiratoria.pdf
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/effective_police_supervision_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0436/2013/9170/files/tcp_server_python.pdf
    • https://cdn.shopify.com/s/files/1/0437/2201/4870/files/swimming_pool_structural_design_calculations.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007269.bin
2d3f82b066c00e7bb2746731688f6d708bd9486bf782e9fe2f20f853cc3202ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7269 4468 bytes
font_01_sfnt_off0000824e.bin
1cc26b3b90ab297300135854d44baf30c9f45519b6ede55c411119c0afa2d4b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x824E 5080 bytes
font_02_sfnt_off00009381.bin
695e7074ee2207fb3b8cce2d5501d438e8673384704a4687f29e8db4d29440c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9381 12932 bytes
font_03_sfnt_off0000bd60.bin
0ff8734339890d5d51f0005e40d44530a4211d85ceb0cd60e3363574c69290f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD60 16348 bytes
font_04_sfnt_off0000d374.bin
e0e8e3645379e6ec990e0ed1e39a2979a069cc5e7c9ec1f305ffde9260dc07d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD374 6088 bytes

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