Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e2e49e12a085ded…

MALICIOUS

PDF

55.5 KB Created: 2020-07-31 07:35:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84540ddc82d260ce0e74294598f307be SHA-1: 6759c848d0bdbd1a7f3c68cc2850945935934ec7 SHA-256: 9e2e49e12a085dede5782c2ffd216593f688736b9ca6eae67174f7a714785caa
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'avoir etre conjugaison pdf' and is associated with the wkhtmltopdf tool, suggesting a lure to a malicious site disguised as an educational resource. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning tactic to distribute malicious content.

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=avoir+etre+conjugaison+pdf
    • http://files.playsmart.co/uploads/1/3/0/8/130874431/fuposaxo.pdf
    • http://files.all4pawsdogrescue.com.au/uploads/1/3/1/4/131455883/9425829.pdf
    • http://files.vatvhoa.com/uploads/1/3/0/8/130813378/6076124.pdf
    • https://cdn.shopi
    • https://cdn.shopify.com/s/files/1/0430/2068/1377/files/livigedezokalewetogu.pdf
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/42887395180.pdf
    • https://cdn.shopify.com/s/files/1/0428/5969/2191/files/jetabofowepozaxovuto.pdf
    • https://cdn.shopify.com/s/files/1/0434/4971/2807/files/tajonajigumitozafoba.pdf
    • https://cdn.shopify.com/s/files/1/0440/5939/4213/files/78454736014.pdf
    • https://cdn.shopify.com/s/files/1/0440/7489/3477/files/83163415360.pdf
    • https://cdn.shopify.com/s/files/1/0432/3645/8654/files/92898904478.pdf
    • https://cdn.shopify.com/s/files/1/0437/7424/7069/files/4205662372.pdf
    • https://cdn.shopify.com/s/files/1/0428/9688/3868/files/jusefatezebej.pdf
    • https://cdn.shopify.com/s/files/1/0433/9145/1294/files/50850779582.pdf
    • https://cdn.shopify.com/s/files/1/0429/9328/7331/files/81943826547.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_off000072cb.bin
8c8a414b753dabc80bb6e6989d3ed51f783c77d95527f5cd42f5816d15015c44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72CB 5296 bytes
font_01_sfnt_off000084e6.bin
7f38c7bd3076d5ec567b373f8788658f617417f44aeaffad1c2d563936ecbb0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84E6 2268 bytes
font_02_sfnt_off00008ef6.bin
ed13a252ecdd930763a8d7f114061698259e2a04684dafd3ef280c7dfd82a8b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF6 14064 bytes
font_03_sfnt_off0000b8f5.bin
33ebb79d8d9ac6df600c86c73ece41e66b025ef203b37427f35d3887452a60d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8F5 16256 bytes

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