Malicious PDF — malware analysis report

Static analysis result for SHA-256 b217daa009dc60d7…

MALICIOUS

PDF

51.8 KB Created: 2020-08-17 07:40:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55bee963638bcb81d3590454df169877 SHA-1: 4bbb46776ee01f42385dd18e89d8c1ebe0e3ad3d SHA-256: b217daa009dc60d7f2ffe0b0142dad5798b7b6972cee62eaa5e014aa20e511e2
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=giant+defy+2014+size+guide', is likely intended to redirect the user to a malicious site. The document also contains a large number of external links, many pointing to Shopify, which is flagged as a link farm. The primary malicious URL is the most critical IOC.

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=giant+defy+2014+size+guide
    • http://files.stonehilltheatricalfoundation.org/uploads/1/3/0/7/130775953/daeea7294.pdf
    • https://cdn.shopify.com/s/files/1/0431/3346/8821/files/maths_formulas_for_class_10_cbse.pdf
    • https://cdn.shopify.com/s/files/1/0430/0383/8615/files/rerifamegarituvagatovo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9122/1923/files/8035946678.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/gawefigapapasajovanog.pdf
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/boboreg.pdf
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/karisozepejabosufu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4737/8344/files/gofukenuzobaxafuk.pdf
    • https://cdn.shopify.com/s/files/1/0435/6246/7489/files/all_souls_st_gabriels_school_uniform.pdf
    • https://cdn.shopify.com/s/files/1/0437/6199/1841/files/80875229119.pdf
    • https://cdn.shopify.com/s/files/1/0457/6690/1924/files/kurtzpel_rebirth_guide.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_off00006070.bin
ae86de7926618920884a366989f7735b83cd509c28f7582dc3115e32d6f813a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6070 5316 bytes
font_01_sfnt_off000072ae.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72AE 1800 bytes
font_02_sfnt_off00007b3c.bin
80a1a75cc6f6b82c6c45e57e1daead763bcb89d3086ce1311a7243a91354c086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3C 10028 bytes
font_03_sfnt_off00009ddd.bin
bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDD 16312 bytes
font_04_sfnt_off0000b368.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB368 4324 bytes

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