Malicious PDF — malware analysis report

Static analysis result for SHA-256 917639117f3c7c55…

MALICIOUS

PDF

42.3 KB Created: 2020-08-08 00:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64be995841191ab1e92b58753d888186 SHA-1: ba4ee339c04ed4dc24b1ae9674dc8d0a84222c89 SHA-256: 917639117f3c7c5565856aaa35929916bb5a798e03bb9b75009ff9fa18c00280
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with one heuristic specifically flagging it as a 'PDF_SEO_LINK_FARM'. Another heuristic identifies a 'PDF_MALICIOUS_REDIRECTOR_LINK' pointing to 'ttraff.cc'. The document body, though heavily obfuscated, also contains references to these URLs. The primary attack pattern appears to be a link farm, potentially for SEO manipulation or to distribute malicious content via 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.cc/pify?keyword=best+pdf+app+for+ipad+mini
    • http://kazoluj.olvinfants.com/uploads/1/3/2/3/132302780/4889876.pdf
    • http://files.meredithcarro.com/uploads/1/3/2/7/132712358/jagemuzemusa.pdf
    • http://files.btccricket.co.uk/uploads/1/3/0/7/130740591/6101994.pdf
    • http://files.hawaiistateptsa.org/uploads/1/3/2/6/132682040/dojirobodos.pdf
    • https://cdn.shopify.com/s/files/1/0432/8521/7436/files/water_pollution_in_bengali_language.pdf
    • https://cdn.shopify.com/s/files/1/0437/7047/8746/files/77752302378.pdf
    • https://cdn.shopify.com/s/files/1/0431/1708/4833/files/inotech_dog_fence.pdf
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/pereku.pdf
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/vitafunofijevapidenaboze.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/one_way_anova_using_spss.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/puzodaregaxitawomukagi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4573/2007/files/kerefugibegofetagol.pdf
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/76998730325.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/54289650326.pdf
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/79293235539.pdf
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/32822249678.pdf
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/pdf_bestand_verkleinen_voor_mail.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_off000068b5.bin
dad24f98a0dec8b3d89923aba554d732120e3220a7ef88e6ed9e1187f6166689		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68B5 5204 bytes
font_01_sfnt_off00007a58.bin
e0f67f35c3cdc6ffcda837b1f8ed6406c67d402c076d8357a10492dc0927fc29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A58 10024 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.