Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e86f62bbd5421b…

MALICIOUS

PDF

43.5 KB Created: 2020-08-14 07:07:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 488f89eb7e3e21e95bcec691bb5f12f2 SHA-1: 471caacd050a42a68e036e1fecf90bdd81357366 SHA-256: b2e86f62bbd5421bf05de63f8a9d3d613d8b3db2856275d1c3a018705c504994
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links pointing to external resources, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=los+de+abajo+manuel+azuela+pdf'. While many linked Shopify URLs are benign, the presence of the redirector strongly suggests a malicious intent to lure users to potentially harmful content.

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=los+de+abajo+manuel+azuela+pdf
    • http://files.renehindsarts.com/uploads/1/3/2/6/132682022/valumapobagezo.pdf
    • http://files.sathiavanee-veeramoothoo.com/uploads/1/3/1/8/131871891/jidutemepupaz.pdf
    • http://sekexo.smokymountaintax.com/uploads/1/3/0/7/130739561/1f83a4511.pdf
    • http://files.angeliquestrausheimdesigns.com/uploads/1/3/1/4/131408086/fakeziw_watoz_foxav.pdf
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/zaxavav.pdf
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/nazexubir.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/sadunodogabolusaxamug.pdf
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/zawitaxitadesotusafati.pdf
    • https://cdn.shopify.com/s/files/1/0432/3934/2248/files/fikavodemibikowuku.pdf
    • https://cdn.shopify.com/s/files/1/0437/8587/9704/files/zekipizogudagineropa.pdf
    • https://cdn.shopify.com/s/files/1/0430/3699/9842/files/auto_d_epoca.pdf
    • https://cdn.shopify.com/s/files/1/0432/3698/2944/files/65105316198.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/ssh_tunneling_mac.pdf
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/23225458182.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_off00006a2a.bin
fcda96f13b8cb6905f966fcb7fae0bab95b5bfd634febc994d27e0e92f814897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2A 5300 bytes
font_01_sfnt_off00007c2c.bin
c81e0d4942ba82b3a84d8a216c56e694ef0918e235780125c11a8cbd3db5b15a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2C 10800 bytes

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