Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2a2ab2e086188a9…

MALICIOUS

PDF

42.2 KB Created: 2020-08-04 14:04:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a98314fea08582c772d762f59df1bff SHA-1: afaa840d100523d96c1fab0a2c21e0d47c2fe2e1 SHA-256: e2a2ab2e086188a9e8ec9c40451ed39e5fd3a407a737645942b28d14633a065c
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is designed to obscure the final destination. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify and custom domains, suggesting a link farm or download lure. 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.cc/pify?keyword=agile+approach+to+project+management+pdf
    • http://files.artatvalleylakegallery.org/uploads/1/3/2/7/132710779/6d36a94c046a9.pdf
    • http://files.ncrehabassociation.org/uploads/1/3/0/7/130739789/3030cf.pdf
    • http://files.chefscommissarykitchen.com/uploads/1/3/1/4/131436991/wumejikuvovowi_volofiberiz_buzatevujijuv.pdf
    • http://files.sharonbaptisthamptonva.com/uploads/1/3/1/3/131381055/virokix.pdf
    • http://files.judydoeppel.com/uploads/1/3/2/7/132741334/masuxatilanigo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0118/files/artificial_intelligence_and_machine_learning_fundamentals_pdf_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/8547/7541/files/duwilezez.pdf
    • https://cdn.shopify.com/s/files/1/0430/1553/6793/files/58035572343.pdf
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/35668973931.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/ordeal_by_cheque.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mikawewetekiwu.pdf
    • https://cdn.shopify.com/s/files/1/0429/4869/0076/files/panem.pdf
    • https://cdn.shopify.com/s/files/1/0429/5471/9395/files/classification_of_coenzymes.pdf
    • https://cdn.shopify.com/s/files/1/0431/6889/1040/files/gugopejidakevudex.pdf
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/33418131697.pdf
    • https://cdn.shopify.com/s/files/1/0431/9520/3745/files/gugutapisekanagufu.pdf
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/repoparegaxuwejenaburo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6091/2537/files/xopiranejixobekosu.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_off00006533.bin
a947483178e93ed0e2455cf67db22a1108c579f155e002a5ffced53be03087c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6533 5456 bytes
font_01_sfnt_off000077a1.bin
24b34f97ac93a37a538a898cb5863024d99397f36bd549476ba4553b6fce3d72
pdf-font-stream PDF embedded font (sfnt) at offset 0x77A1 10440 bytes