Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2be5f2845af2223…

MALICIOUS

PDF

66.0 KB Created: 2020-08-03 06:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a6177dda708b6d2a04488dac3a610b5c SHA-1: 407d1a7c96ca20d137daecfd9d694d9b789af328 SHA-256: e2be5f2845af22233ce7b192a80c98aa75d46e8f5a9187767501deda86df12cb
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body, though heavily obfuscated, contains a URL pointing to a known malicious redirector, 'https://ttraff.com/pify?keyword=discord+rp+servers'. This indicates the primary purpose is to lure users to malicious sites. The presence of numerous other links hosted on cdn.shopify.com and other domains suggests a coordinated effort to distribute malicious content or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=discord+rp+servers
    • http://files.churchesindeerpark.org/uploads/1/3/1/0/131070420/3998461.pdf
    • http://files.tyhallmark.com/uploads/1/3/0/8/130813997/petejexetaxamelukute.pdf
    • http://files.welcometomyhomepage.org/uploads/1/3/1/6/131607010/8005743.pdf
    • https://cdn.shopify.com/s/files/1/0434/0187/1512/files/88566922560.pdf
    • https://cdn.shopify.com/s/files/1/0432/0234/7168/files/49399620104.pdf
    • https://cdn.shopify.com/s/files/1/0437/8948/4194/files/44865285229.pdf
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/kirowa.pdf
    • https://cdn.shopify.com/s/files/1/0430/1966/5561/files/juzabos.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/xonilabavar.pdf
    • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/keregu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9779/2420/files/60545404317.pdf
    • https://cdn.shopify.com/s/files/1/0435/9123/7791/files/pimagakuvebanaro.pdf
    • https://cdn.shopify.com/s/files/1/0432/8164/5736/files/61029124552.pdf
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/lodovolasedip.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60233972239.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_off000078fc.bin
d10097ecd60682ffe51fab6a061516b8200e70af960b9f8ed7bbff7c8add691c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78FC 4488 bytes
font_01_sfnt_off0000883c.bin
e197c3daed01507d2166f9aa476220777787e91ae28780e40f08fcf4deb9861b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x883C 5852 bytes
font_02_sfnt_off000096ed.bin
6d02f527daee8276051c0b0d1435d56e45327be4f5995a4f799e3e61c838bb5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96ED 4644 bytes
font_03_sfnt_off0000a866.bin
092312c2cdccf716926fb7128e0dbbded738b39c244615e1cde51464a78b1803		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA866 14452 bytes
font_04_sfnt_off0000d554.bin
613cb12ce901a01f031e14eb45bce27983236c06f5000497c319955f0ed899a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD554 16668 bytes
font_05_sfnt_off0000ebc4.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC4 4324 bytes

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