Malicious PDF — malware analysis report

Static analysis result for SHA-256 2306cb4bb321c207…

MALICIOUS

PDF

37.7 KB Created: 2020-08-12 15:17:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 446c5acd7ae944ae8fe86ab13a8af63e SHA-1: c8e3d8bab853d5f32b03a48dcac4c034d163e05e SHA-256: 2306cb4bb321c20718b27c638f317ddf3b351dbdab67153ecf14863d2a85ed55
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=anthropological+foundation+of+education+book+pdf'. This indicates the document's primary purpose is to lure users to a malicious site. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse to obscure the malicious redirector. No scripts were extracted from this sample.

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=anthropological+foundation+of+education+book+pdf
    • http://lidinaded.redwoodpediatric.com/uploads/1/3/0/9/130969959/notud.pdf
    • http://files.havenesthetics.com/uploads/1/3/1/4/131453605/kipoxawijexun_nasobibin.pdf
    • http://files.chocolatewholesalestore.com/uploads/1/3/0/7/130776529/4919033.pdf
    • http://files.harrietlevinmillan.org/uploads/1/3/1/1/131164157/2860476.pdf
    • http://bamil.bamestate.com/uploads/1/3/1/4/131437423/c0ca90fb65975.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/mitutoyo_vernier_caliper_500_196.pdf
    • https://cdn.shopify.com/s/files/1/0433/0848/2710/files/93397861675.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5800/files/jujemerasi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60527157158.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/lamikefirape.pdf
    • https://cdn.shopify.com/s/files/1/0433/2004/9822/files/zinofuwonaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/81135138699.pdf
    • https://cdn.shopify.com/s/files/1/0433/3400/8987/files/breadth_first_search_c.pdf
    • https://cdn.shopify.com/s/files/1/0445/8083/1396/files/spatial_data_science.pdf
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/74735263496.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84770620138.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5280/files/xolan.pdf
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/xujifuxowarisixiku.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_off00004ad6.bin
68becfc512551bd8b8c85e5a02de30b77902dfdf46123fd63c052e6e7d0ccfb8
pdf-font-stream PDF embedded font (sfnt) at offset 0x4AD6 5316 bytes
font_01_sfnt_off00005cd0.bin
9b8b75df5c5c9934d12c29a22b6310f0fab14311d13112e7d76d1e1d78b1c8e2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD0 8900 bytes
font_02_sfnt_off00007b48.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B48 4324 bytes