Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbd504620321130c…

MALICIOUS

PDF

43.4 KB Created: 2020-08-01 13:12:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b04d1c4049318e50722adb906b7282f SHA-1: 2a79420e17601569bee94629fe064926c9d0685e SHA-256: bbd504620321130c07d13f790472079443412eb8340b8d7cab46f753663478cc
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Gta v crew emblems' and the URL 'https://ttraff.ru/pify?keyword=gta+v+crew+emblems', suggesting a lure to a malicious site. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

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.ru/pify?keyword=gta+v+crew+emblems
    • http://files.elainepolishak.com/uploads/1/3/2/8/132814375/7c673afd052.pdf
    • http://files.barbaraweiderhouse.ca/uploads/1/3/0/7/130739778/fiwovigi.pdf
    • http://files.angelakleis.com/uploads/1/3/0/7/130776445/jelanumefugenosit.pdf
    • https://cdn.shopify.com/s/files/1/0428/6778/5884/files/wafepe.pdf
    • https://cdn.shopify.com/s/files/1/0433/4977/0408/files/20524175511.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/vuvixerirokedorasabute.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/92809248444.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38746106010.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6896/files/8551963257.pdf
    • https://cdn.shopify.com/s/files/1/0437/8597/8013/files/xaboduluvix.pdf
    • https://cdn.shopify.com/s/files/1/0427/9051/8940/files/18111254683.pdf
    • https://cdn.shopify.com/s/files/1/0431/4798/5053/files/motir.pdf
    • https://cdn.shopify.com/s/files/1/0428/8793/8211/files/ziremuzuzadubekose.pdf
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/ruzujasifikazaronibesivi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000612b.bin
f244152f1735ecea2e0015db16f4eec7c19935d3b03785c1fb693a5a6caaf07b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x612B 2988 bytes
font_01_sfnt_off00006bdb.bin
e3c4d3d529744b04d8b90490e17b22d3144229ece2e70b31b4149db841b3e5c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDB 5268 bytes
font_02_sfnt_off00007dc7.bin
23137f0b8a697237a210a90210b94fcf8a10bd2c7fc17dbc84fb6ff2d85856fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC7 10152 bytes

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