Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd927457e3db4799…

MALICIOUS

PDF

42.5 KB Created: 2020-08-10 02:22:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70764e48e4054eb2154250b355def077 SHA-1: 7abdbd71b9e2d750074f5edb080601198b5e33b8 SHA-256: dd927457e3db47994d4e94b1b23f56561b57d870c7852b35a8b3d1889d96cb93
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic identifying a malicious redirector URL. The document body, though partially corrupted, contains the malicious URL and other benign-looking URLs, suggesting a lure to a malicious site. The primary malicious URL is https://ttraff.cc/pify?keyword=s%25E1%25BB%25ADa+file+pdf+b%25E1%25BB%258B+l%25E1%25BB%2597i+font, which likely leads to further malicious 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.cc/pify?keyword=s%25E1%25BB%25ADa+file+pdf+b%25E1%25BB%258B+l%25E1%25BB%2597i+font
    • http://files.mcmjanitorial.com/uploads/1/3/1/4/131406356/5b2cce2e6e7ba.pdf
    • http://files.plumcreekownersassociation.com/uploads/1/3/0/7/130776037/fonefizusosufi_sejagid_kofiragowufuwu_zitulakitapefe.pdf
    • http://files.earthboundtherapeutics.com/uploads/1/3/1/4/131408798/73effb5c335c6c.pdf
    • http://files.brittanyrhager.com/uploads/1/3/1/4/131454090/gofepubisajutumem.pdf
    • http://files.mmedugroup.org/uploads/1/3/1/4/131438405/lepitinevo-pekobesa-kujirad-jagejub.pdf
    • https://cdn.shopify.com/s/files/1/0435/3074/8055/files/mapa_alsacia_y_selva_negra.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/30936358609.pdf
    • https://cdn.shopify.com/s/files/1/0432/8849/4236/files/spin_js_example.pdf
    • https://cdn.shopify.com/s/files/1/0431/5293/3020/files/8613499371.pdf
    • https://cdn.shopify.com/s/files/1/0431/8160/5018/files/already_yet_present_perfect_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0437/3286/1079/files/this_in_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0431/3012/6490/files/zoologia_del_phylum_arthropoda.pdf
    • https://cdn.shopify.com/s/files/1/0430/0577/1929/files/32037938627.pdf
    • https://cdn.shopify.com/s/files/1/0440/0028/0726/files/atherosclerosis_causes.pdf
    • https://cdn.shopify.com/s/files/1/0434/0944/0917/files/kuxegubuzasibepenaxe.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_off000057b4.bin
2dbc4a9a29c2f1fd923e5326b548bf9173e24a64a515a8ae2db64d21110122ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x57B4 5300 bytes
font_01_sfnt_off00006976.bin
4afb0ba10c7c4d5d7825e26815305e0b6d682ab2bc2f1ef7f44ddada9afdc28a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6976 10932 bytes
font_02_sfnt_off00008d51.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D51 4324 bytes