Malicious PDF — malware analysis report

Static analysis result for SHA-256 96e62a910584ac1e…

MALICIOUS

PDF

64.3 KB Created: 2020-08-02 21:34:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e206956d6b95e35970d64e9f75f91af SHA-1: 98cbd9d7d024bde7e68968fcd7ed22c0397e3756 SHA-256: 96e62a910584ac1e610a41217c8fdf2ddbec49c69f05b15bd94cbae87b4f056b
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, many of which point to redirector infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.cc/pify?keyword=vargeet+jai+ii as malicious. The PDF_SEO_LINK_FARM heuristic indicates a mass external PDF link farm, with a dominant host of cdn.shopify.com, suggesting an attempt to distribute malicious content through a large number of seemingly benign links. No scripts were extracted from this sample.

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=vargeet+jai+ii
    • http://files.nanopcm.com/uploads/1/3/0/7/130775567/ridulifune-fetilubajedu.pdf
    • http://files.christianpoetrybygeoffrey.com/uploads/1/3/0/9/130969300/6023353.pdf
    • http://files.fccchristopher.com/uploads/1/3/0/7/130774993/4c76425e397d.pdf
    • http://files.braillenaturetrail.com/uploads/1/3/1/3/131383624/3107263.pdf
    • http://files.garethworthington.com/uploads/1/3/0/7/130776757/d26288238b6.pdf
    • https://cdn.shopify.com/s/files/1/0431/0443/6390/files/89331680383.pdf
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/49669138778.pdf
    • https://cdn.shopify.com/s/files/1/0428/7656/7711/files/28857793810.pdf
    • https://cdn.shopify.com/s/files/1/0441/3535/0424/files/78940377032.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/demotufilonameviv.pdf
    • https://cdn.shopify.com/s/files/1/0428/6310/0070/files/4588166916.pdf
    • https://cdn.shopify.com/s/files/1/0432/5454/6590/files/tujojimo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8806/0321/files/destiny_ddos_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/3492/7513/files/72053861397.pdf
    • https://cdn.shopify.com/s/files/1/0431/3923/5997/files/bidolatowikaziwofugavakon.pdf
    • https://cdn.shopify.com/s/files/1/0441/4016/7320/files/jovejololarireb.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_off00007055.bin
3442addd77f727b564dcfad1da81799b0ded0ea5234cfd0c1cdd708647b7881d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7055 21764 bytes
font_01_sfnt_off0000b426.bin
86c517255a6cf2e71ef1500c765aeba0012d271d1aebaf2d0c22efaac305bef0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB426 4256 bytes
font_02_sfnt_off0000c2a3.bin
98098cbfef1983569d938383d853f98574d221f1d4eae309c147a1cc1ed221dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC2A3 10312 bytes
font_03_sfnt_off0000e5e2.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E2 4324 bytes

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