Malicious PDF — malware analysis report

Static analysis result for SHA-256 b338334cfab1db61…

MALICIOUS

PDF

77.5 KB Created: 2020-08-21 12:56:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d32a0e0c5a8cfcc5cd3061f8865876a SHA-1: 248b0e466cdb7130a85e4b46ae9e78cc47a8bc8c SHA-256: b338334cfab1db61be6027d7dcfee2886a10ef98ec95ce6346e79e693951c979
150 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 a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=satta+king+gaziabad+disawar+ki+report'. Another heuristic indicates a large number of external PDF links, suggesting a link farm designed to manipulate search engine results or distribute further malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.com/pify?keyword=satta+king+gaziabad+disawar+ki+report
    • http://vasen.davidevansracing.com/uploads/1/3/1/4/131438234/winopasiwok-fokibijija.pdf
    • http://files.patmcculloughart.com/uploads/1/3/2/6/132682125/xemexumojo-ferot.pdf
    • http://files.hamiltonclaimssolutions.co.uk/uploads/1/3/0/8/130874197/nuzugoteragole.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/tufijale.pdf
    • https://cdn.shopify.com/s/files/1/0439/4903/1592/files/38511025508.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/sobegarebo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/tudalikuruwezuxa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3092/0871/files/airdrop_iphone_4s.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/47631127665.pdf
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/foraduxopewusujowadoso.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7539/files/9450338440.pdf
    • https://cdn.shopify.com/s/files/1/0427/6954/7431/files/32940746750.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/labuporapapilixiwuvibisa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1040/0153/files/rabbi_abraham_twerski.pdf
    • https://cdn.shopify.com/s/files/1/0435/5178/5109/files/11912997405.pdf
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/jeviwejegitebuxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/19506219878.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a732.bin
b145a281211ac72fb93e806df3f10d7c6c538b010e3ccee9a9a617e74026bb34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA732 5544 bytes
font_01_sfnt_off0000ba2e.bin
d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA2E 3720 bytes
font_02_sfnt_off0000c58a.bin
35d67d2122ee6babe974f8b932f39dda1b075edeb657b3f15171459519ccd8bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC58A 2704 bytes
font_03_sfnt_off0000d141.bin
b778aa261a6378d3352cb3ef2e8bf56029b048c2dad9f87878a90e343a4be9c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD141 11324 bytes
font_04_sfnt_off0000f757.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF757 16164 bytes
font_05_sfnt_off00010caa.bin
8ef1645d4a1f7331d3b449b099dfdbc3593badd42b1e30f00bb020b3d20a5bbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CAA 7828 bytes

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