Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9e92fdb0010ef93…

MALICIOUS

PDF

42.0 KB Created: 2020-08-20 14:29:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73fe09cca18096fafe79b8fa3719c1ef SHA-1: 3344dc6a3f4c3c14454a1a46f3bfc560985f7852 SHA-256: e9e92fdb0010ef938f2b3256a3ec32b40398c7899a22871aebba922c3f0fc0d7
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 links, with a critical heuristic firing for a PDF link farm. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking Shopify URL, suggesting a lure to disguise the malicious intent. The file's purpose appears to be SEO manipulation or redirection to malicious sites.

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=bomb+exploding+sound+effect+free
    • http://files.jacquelinemadsenart.com/uploads/1/3/0/7/130775544/7fe3dffe9d6d89.pdf
    • http://files.mountainshadowfarm.ca/uploads/1/3/0/7/130738720/6843000.pdf
    • http://files.ontracksimulation.com/uploads/1/3/0/8/130874201/vafodadonaz_taxivawidifogu.pdf
    • http://pedagigo.besickchick.com/uploads/1/3/1/3/131383770/9d121.pdf
    • http://files.serenarilab.com/uploads/1/3/1/1/131163737/8263448.pdf
    • https://cdn.shopify.com/s/files/1/0430/5479/2866/files/62440221793.pdf
    • https://cdn.shopify.com/s/files/1/0436/0133/0339/files/vabinoxiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/sch_machine_learning_c_bn.pdf
    • https://cdn.shopify.com/s/files/1/0427/4274/3207/files/76836334832.pdf
    • https://cdn.shopify.com/s/files/1/0430/6635/9962/files/9485856774.pdf
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/61583094782.pdf
    • https://cdn.shopify.com/s/files/1/0429/9993/9235/files/nenozowizebomojigixo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9617/8845/files/watch_superman_vs_batman_online.pdf
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/52356685816.pdf
    • https://cdn.shopify.com/s/files/1/0428/4638/8380/files/kanunidatinuwumuku.pdf
    • https://cdn.shopify.com/s/files/1/0429/1543/0559/files/73634619904.pdf
    • https://cdn.shopify.com/s/files/1/0448/1286/1600/files/bienestar_material_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/53378759595.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_off00006446.bin
ce4ae0dedfd5495f1315e3ecb0e01daa1a75b23aa7668a81621877f976f9fedd
pdf-font-stream PDF embedded font (sfnt) at offset 0x6446 5520 bytes
font_01_sfnt_off000076fc.bin
00229e4427044c4f8df72289151575660b21220c1ad5edd44991110de1333c2c
pdf-font-stream PDF embedded font (sfnt) at offset 0x76FC 10504 bytes