Malicious PDF — malware analysis report

Static analysis result for SHA-256 24ae9d4e453ef7b3…

MALICIOUS

PDF

33.6 KB Created: 2020-08-25 04:53:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7050e6cc9f90e2cfe27614ba4b61261f SHA-1: ae7a862db47e209488e570815ff101d81fd1ae01 SHA-256: 24ae9d4e453ef7b374e22cf93aa214e3422a1d38d17716e397ed7ab4c336cdbc
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links directs to a known malicious redirector at ttraff.ru, which is likely intended to deliver a malicious payload. The document body, though heavily obfuscated, contains the target URL and keywords suggesting a lure for a 'car game'. 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.ru/pify?keyword=car+game++2019+apk
    • http://talajowe.gsbauk.com/uploads/1/3/2/6/132682646/goniropoj-wemaritasoj-pakivovup.pdf
    • http://files.holleyslandscaping.com/uploads/1/3/1/0/131070378/44bde646268.pdf
    • http://rigozu.bellaspeechsensoryworldinc.com/uploads/1/3/0/8/130874153/5926513.pdf
    • http://files.elephantsinthecoffee.com/uploads/1/3/0/7/130739726/tazufodogimaro_dolevitajo_pekareveleje_kevuf.pdf
    • https://cdn.shopify.com/s/files/1/0434/5076/1377/files/ranozutid.pdf
    • https://cdn.shopify.com/s/files/1/0462/6995/6245/files/canon_eos_rebel_t100_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/4947/4453/files/javonizo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5989/5717/files/63785659118.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/61786037147.pdf
    • https://cdn.shopify.com/s/files/1/0437/0841/6168/files/97480653119.pdf
    • https://cdn.shopify.com/s/files/1/0445/8522/2308/files/culberson_injury_report.pdf
    • https://cdn.shopify.com/s/files/1/0466/2765/1749/files/47153976833.pdf
    • https://cdn.shopify.com/s/files/1/0429/8499/7025/files/apache_autoindex_template.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000431f.bin
0aefcfc65a777948538cca0714df11a477138665c137ab5dac2bd7e6bf7c5a2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x431F 5380 bytes
font_01_sfnt_off00005564.bin
a585bd0559ef22e427c6d8b3aefd0124d3d7d36166689cb5a1a5740f1269f246		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5564 10844 bytes

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