Malicious PDF — malware analysis report

Static analysis result for SHA-256 c177f50814faa4da…

MALICIOUS

PDF

57.6 KB Created: 2020-08-11 07:03:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ed36dbe5f96ca4f30b6a397d5dff565 SHA-1: 09757c498534187b15c71c8aba6bbd1b1144da25 SHA-256: c177f50814faa4da7bc6a1689420f05de5a6a547883f82a5ee71b8889749fe06
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=blanche+neige+conte+court+pdf', which is flagged as malicious. The presence of a link farm heuristic further suggests an attempt to distribute malicious content or engage in SEO abuse. The primary attack vector appears to be social engineering via a deceptive link within the PDF.

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=blanche+neige+conte+court+pdf
    • http://tetiju.otterspacearts.com/uploads/1/3/1/0/131070374/7e6545f221.pdf
    • http://files.uhighmusic.com/uploads/1/3/0/8/130814052/93d785d7537.pdf
    • http://files.chrisgamecasting.com/uploads/1/3/1/4/131452823/natenuv.pdf
    • http://files.thelandfillchronicles.com/uploads/1/3/1/0/131069819/8a045168db56.pdf
    • http://suwagitot.ergonsolar.com/uploads/1/3/0/7/130775934/26095b.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/kenidefinix.pdf
    • https://cdn.shopify.com/s/files/1/0427/5086/9671/files/nulosamirunotepoxoxapuxub.pdf
    • https://cdn.shopify.com/s/files/1/0433/3282/9342/files/razekaveluv.pdf
    • https://cdn.shopify.com/s/files/1/0436/2004/0866/files/50502519950.pdf
    • https://cdn.shopify.com/s/files/1/0429/3338/7423/files/corpse_bride_piano_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/60574988246.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9512/files/26034204797.pdf
    • https://cdn.shopify.com/s/files/1/0437/1814/8261/files/baxuniwupopajum.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/15079803070.pdf
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/xafamijewobosativedatu.pdf
    • https://cdn.shopify.com/s/files/1/0437/8525/7112/files/27969882397.pdf
    • https://cdn.shopify.com/s/files/1/0433/9918/4551/files/richard_dawkins_the_ancestor_s_tale.pdf
    • https://cdn.shopify.com/s/files/1/0434/8166/1600/files/algebra_1_rules.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c8e.bin
657ecd41de71d6cc26ea63214dcfece046f6447d6d4f661ddd1c7c509279b1e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8E 6676 bytes
font_01_sfnt_off00008d64.bin
0a6d2cb5bd905dd13b6cddfc2e2b5778db1087040b0a733822013c2af4462b00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D64 5288 bytes
font_02_sfnt_off00009f57.bin
342abad3434582b0d628b4805c96f63a3f04cbef2480a7b088800eba039c04d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F57 10564 bytes
font_03_sfnt_off0000c35c.bin
42b86f4c7d12b3db81c2ff8554006990fcf71a6371f35020978ed516e7513ae3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC35C 16208 bytes

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