Malicious PDF — malware analysis report

Static analysis result for SHA-256 a46988e37f473424…

MALICIOUS

PDF

43.5 KB Created: 2020-08-13 15:41:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11f48efd4580f2314c7003beab99617b SHA-1: 88a7097ecbe916489a50844491532ac9c29dc73b SHA-256: a46988e37f4734240505cdd8158d0cddb027052ff5bec8d6e1cc3b4ed9185c57
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. It also features a link farm of numerous PDF files hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute content. The presence of a visual download button further supports the lure to click the malicious link.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ano+ang+kontemporaryong+panitikan+pdf
    • http://files.jikidenreikipathways.com/uploads/1/3/1/3/131398091/2158272.pdf
    • http://files.womenslifechangecoach.com/uploads/1/3/0/7/130775633/e268b24754.pdf
    • http://files.maurajlecturer.com/uploads/1/3/1/0/131070152/tufoxulu.pdf
    • http://files.dorkingrefugeesupport.org/uploads/1/3/0/9/130969330/dojavesigoboxowi.pdf
    • http://cinurl.com/166izy
    • https://cdn.shopify.com/s/files/1/0433/6628/5480/files/81868715769.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/xiruwivakubalobudatojo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6980/8548/files/nefopebidisenaguf.pdf
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/gubujigubedapusufapi.pdf
    • https://cdn.shopify.com/s/files/1/0438/3178/7670/files/3500_mcq_ies_gate_psus_electrical_engineering_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/2742/1608/files/manorama_yearbook_2020_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41732402988.pdf
    • https://cdn.shopify.com/s/files/1/0434/1887/8104/files/30901821721.pdf
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/14753520853.pdf
    • https://cdn.shopify.com/s/files/1/0428/1306/3327/files/38973906877.pdf
    • https://cdn.shopify.com/s/files/1/0451/0456/2328/files/deep_ecology_arne_naess.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/94901275275.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_off00006c2a.bin
6ef7f5b258c8f1f6ce511647aa82aa17349cf39b0f4e12d14650583c64b8aba2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2A 5304 bytes
font_01_sfnt_off00007e2e.bin
2ed6118270fcde003bb3c6807651638ff5ec295bf7a67f0c64248a616316bd08
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2E 10220 bytes