Malicious PDF — malware analysis report

Static analysis result for SHA-256 236cba2d34799ba2…

MALICIOUS

PDF

45.7 KB Created: 2020-08-16 00:55:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 776f9e6b5aa9417c1f47dc6d11628800 SHA-1: ea134e54e1466bcd5d62fc6b27c17c3de3dfb2c7 SHA-256: 236cba2d34799ba26ae3d62fbd9868eeea140a7926c1a2d3b6650d838c47d85e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=vastu+shastra+movie++in+hd', suggesting a lure to a malicious site. The presence of numerous links indicates a link farm or SEO poisoning attempt, designed to drive traffic to potentially malicious destinations.

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=vastu+shastra+movie++in+hd
    • http://files.dekinderenhuis.com/uploads/1/3/0/7/130775350/6815579.pdf
    • http://files.emilylwebb.com/uploads/1/3/1/4/131483154/jutumufix_rokoku_xalimuro.pdf
    • http://files.saintaugustinecolindale.com/uploads/1/3/1/4/131437633/29107de03bb.pdf
    • http://files.modelrailways.tv/uploads/1/3/2/8/132815220/wurotusodawujigoxuk.pdf
    • http://lotofag.footballinmyblood.com/uploads/1/3/0/7/130776485/posexasadowipal.pdf
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/79646034058.pdf
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/guzizo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/funokeridujegin.pdf
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/tigivorodijijan.pdf
    • https://cdn.shopify.com/s/files/1/0434/8982/0838/files/how_to_cure_vampirism_in_oblivion.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/9322810762.pdf
    • https://cdn.shopify.com/s/files/1/0434/3198/5309/files/dozepivevokisenazotojolo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/64164538534.pdf
    • https://cdn.shopify.com/s/files/1/0437/5343/9383/files/jizeruxibarexogin.pdf
    • https://cdn.shopify.com/s/files/1/0433/5425/9606/files/rawazajodixan.pdf
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/66907142033.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kekiwimuzavenomudajelibo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29942388251.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_off0000676d.bin
0e6f6344efcfb97b727eb0b4b055eedfbd368d32efe68fdf55835855219705cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x676D 5056 bytes
font_01_sfnt_off0000787f.bin
de995415f1cf54dc1396afc891e2d782937d72a232566ff4166f1050385520c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x787F 10184 bytes
font_02_sfnt_off00009ba1.bin
6079bc19c041d7a437e922fa39db767272f467887b3c6b565213419b1a21ccfc
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA1 3100 bytes