Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd6eb22702a94aa1…

MALICIOUS

PDF

53.9 KB Created: 2020-08-02 22:21:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56cfc0a7152cbbe776bc4214eebbf966 SHA-1: e47c3edaa5bf3c5c948ebc85dca91ba447940f65 SHA-256: cd6eb22702a94aa176e2fbd1fde5f5b72ec66be816fff3c6af878f744ef36f17
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one pointing to a known malicious redirector at 'ttraff.com'. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a link farm or SEO manipulation tactic. The presence of many shopify.com URLs, while some are benign, are part of this larger link farm. The document body is heavily obfuscated and contains the malicious redirector URL.

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=css+text+glow
    • http://files.barkerstrathcatholic.com/uploads/1/3/1/8/131856318/tirugaterajob_pajibumus_vukajitelo.pdf
    • http://files.aisledoweddingservices.com/uploads/1/3/1/4/131453132/2545816.pdf
    • http://files.rylan-klaseen-associates.com/uploads/1/3/2/3/132303175/5a327f0816.pdf
    • http://files.rootsdesignco.com/uploads/1/3/1/3/131398401/1255625.pdf
    • https://cdn.shopify.com/s/files/1/0437/8483/1125/files/python_remove_none_from_list.pdf
    • https://cdn.shopify.com/s/files/1/0435/5925/6232/files/25377067980.pdf
    • https://cdn.shopify.com/s/files/1/0428/1165/4307/files/jivodipakopagi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4996/8035/files/nulenogoziredeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/litosewatamezivovi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9010/8833/files/35880168988.pdf
    • https://cdn.shopify.com/s/files/1/0435/1423/2984/files/31439621291.pdf
    • https://cdn.shopify.com/s/files/1/0428/0814/8127/files/gigamonemasu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2960/files/angular_resource_example.pdf
    • https://cdn.shopify.com/s/files/1/0440/3606/3397/files/4037889946.pdf
    • https://cdn.shopify.com/s/files/1/0431/5509/5716/files/pabelam.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/wokagegesit.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_off00006aef.bin
85812512d1d319f1d227ba917eca97b00ad88c712937169466807583b4674201		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEF 4612 bytes
font_01_sfnt_off00007ac4.bin
bea1ee7f2a5b7d37ba0c569a35acbec40adc4bcfb22d8612ab1cff6685cfd8d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC4 5792 bytes
font_02_sfnt_off00008f15.bin
99212f1044878ff779eb643e846b2d0144d8d474b4c5a511c5dacd375eb2a653		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F15 10560 bytes
font_03_sfnt_off0000b375.bin
d68f82260be2b2f0ecf968b0da9c3730299db7bea10bf5a34a92b50d3dcdbf4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB375 16600 bytes

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