Malicious PDF — malware analysis report

Static analysis result for SHA-256 98aba68242e480ab…

MALICIOUS

PDF

41.3 KB Created: 2020-09-01 03:37:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 709aacb4d3b5563b756ff15532d24e43 SHA-1: 72062909f633cea9507a3f0bd333943cac49e19c SHA-256: 98aba68242e480abe85c9abdc587c00224f05174f88ed68dc2b3e953b97d711d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. The primary malicious URL, https://ttraff.com/wix?keyword=free+animal+habitat+worksheets, is identified as a redirector to malicious infrastructure. The document body, though heavily obfuscated, appears to contain the same lure text and URLs. This indicates a social engineering attack aiming to drive traffic 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.com/wix?keyword=free+animal+habitat+worksheets
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/70960570030.pdf
    • https://cdn.shopify.com/s/files/1/0433/6038/7240/files/bunny_rabbit_footprint_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/5276/8151/files/pemamusotaferuderuneziso.pdf
    • https://cdn.shopify.com/s/files/1/0431/8248/9762/files/whatsapp_for_nokia_200_java.pdf
    • https://cdn.shopify.com/s/files/1/0437/8814/0696/files/pottu_amman_film_songs_free.pdf
    • https://static.usrfiles.com/ugd/e02969_1a9ec1b0f527480f96dbefa3ff18c05d.pdf
    • https://static.usrfiles.com/ugd/b8c837_0152b6c1b64d441b896f505e0f1b241d.pdf
    • https://static.usrfiles.com/ugd/b8c837_a8de1a510741490685f51a983956bd75.pdf
    • https://static.usrfiles.com/ugd/909b15_e3181eeb73b34b99b8a3d7ac0f12cb8a.pdf
    • https://static.usrfiles.com/ugd/b85eb0_17124d9eb6004db384f6a7951436ca42.pdf
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/libros_de_ingles_basico_para_leer.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/40153202518.pdf
    • https://cdn.shopify.com/s/files/1/0434/5335/0053/files/57836430562.pdf
    • https://cdn.shopify.com/s/files/1/0437/3187/8049/files/juego_busqueda_del_tesoro_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0431/1787/1255/files/96388175065.pdf
    • https://cdn.shopify.com/s/files/1/0429/6700/7386/files/72285081177.pdf
    • https://cdn.shopify.com/s/files/1/0430/5184/3737/files/capitalist_development_and_democracy.pdf
    • https://cdn.shopify.com/s/files/1/0437/0258/3449/files/bofer.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_off00006376.bin
71309b46c6107b0da16362edfdfec97a94395eeee57358f5e6a46bdb1c573a00
pdf-font-stream PDF embedded font (sfnt) at offset 0x6376 5176 bytes
font_01_sfnt_off000074f2.bin
fb41a2eb70374c7dbbc32924b917e71fd534028daaecbcf09e989a93ef9befd0
pdf-font-stream PDF embedded font (sfnt) at offset 0x74F2 10332 bytes