Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e6d540ef5e79802…

MALICIOUS

PDF

42.7 KB Created: 2020-08-03 14:48:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 928a498662c15833299395f95095179f SHA-1: 388cffbb9ccb38f5f6b1b0d95d350b50c91262ef SHA-256: 2e6d540ef5e79802036b8c2e29ae60c3e40787d9643dff107879f58684520e7b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. Another critical heuristic identified a large number of external PDF links, predominantly hosted on 'cdn.shopify.com', suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking Shopify URLs, reinforcing the malicious intent of the redirector.

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=cantico+delle+creature+analisi+pdf
    • http://files.isminc.org/uploads/1/3/2/7/132712209/segafubed-memodurokino-wetesalu-mejezekiw.pdf
    • http://files.geckolive.co.uk/uploads/1/3/0/7/130775373/7a6688428aec4.pdf
    • http://gakif.dinglibiofuel.com/uploads/1/3/1/4/131438474/217182.pdf
    • http://files.osteomyelitiscenter.com/uploads/1/3/2/3/132303010/4165838.pdf
    • http://files.cognatecollective.com/uploads/1/3/2/7/132740852/rixolipaboxub.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/adobe_premiere_pro_trial.pdf
    • https://cdn.shopify.com/s/files/1/0434/7419/0498/files/voxuv.pdf
    • https://cdn.shopify.com/s/files/1/0437/7876/9045/files/5630512987.pdf
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/netilunizegawabuvipir.pdf
    • https://cdn.shopify.com/s/files/1/0435/1452/7908/files/79433893813.pdf
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/54214320869.pdf
    • https://cdn.shopify.com/s/files/1/0435/8628/9832/files/49306703359.pdf
    • https://cdn.shopify.com/s/files/1/0430/8680/7201/files/nitedo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5627/5360/files/43879851592.pdf
    • https://cdn.shopify.com/s/files/1/0434/9827/4978/files/zififigex.pdf
    • https://cdn.shopify.com/s/files/1/0435/2812/6618/files/31618267234.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/15341938255.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005de4.bin
b796698c12db8ca686d0f2a5ae8d0cfb9fb592275adabed2ae2fd8135614d2d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE4 5052 bytes
font_01_sfnt_off00006f15.bin
78e94e2e47178245ca437e301e19f50dc99845ecc02da2ba30fe2b1e34051cc2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F15 2092 bytes
font_02_sfnt_off000078ba.bin
0e9a525628e87a15fcae014d6aeb95f89c54577bbdce9961ce3a899e5c055bbe
pdf-font-stream PDF embedded font (sfnt) at offset 0x78BA 11280 bytes