Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed2b3b102750ce8a…

MALICIOUS

PDF

38.9 KB Created: 2020-09-17 14:25:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 07e37f4a97f90e68b4478e2dfb5eab90 SHA-1: fd6342c01ce5a24fce2b4ddc3c3128c819c433a5 SHA-256: ed2b3b102750ce8aff93ae1daad521b729b4fd07683a68fd09f336db517a036e
128 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or to obscure malicious destinations. One critical heuristic identified a link to a known malicious redirector at 'ttraff.club'. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick the user into clicking a link. No scripts were extracted from this sample.

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.club/wix?keyword=excelsior+middle+school+marion+ia
    • https://cdn.shopify.com/s/files/1/0436/4576/3744/files/kupuwavulo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1403/7397/files/xupujarirerubasu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3145/2053/files/mefesopevulur.pdf
    • https://cdn.shopify.com/s/files/1/0434/3224/7457/files/zastone_d9000_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/6481416880.pdf
    • https://cdn.shopify.com/s/files/1/0433/4551/0568/files/loridezibawugopililogabi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8678/2371/files/vidmate_apk_old_version_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0429/5809/4495/files/vertex_form_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0436/5362/8062/files/hospital_waste_management_rules_2014.pdf
    • https://cdn.shopify.com/s/files/1/0431/6089/5650/files/aftermarket_car_radio_with_android_auto.pdf
    • https://cdn.shopify.com/s/files/1/0482/7217/9361/files/lufawulubafedu.pdf
    • https://e3f74e70-d8b2-48da-860b-b77b5b44f3f6.filesusr.com/ugd/599026_e9a71a8eb016410fba6b2725648e0e4a.pdf?index=true
    • https://c2229e87-a5ff-4567-a999-96670b8b6d31.filesusr.com/ugd/7d21c0_c9c77b36578e412480fdba56df25c03d.pdf?index=true
    • https://c54c3b07-09bf-4b24-aba6-bb79114db263.filesusr.com/ugd/f515ca_ab2b11588a7c44b2b9ee3999da5d2965.pdf?index=true
    • https://3b9d06fa-1324-47b9-bc52-4683b203f4da.filesusr.com/ugd/1a1092_9eb4eac4082e4a3d93f7422c97ec9e19.pdf?index=true
    • https://092aca64-2e8f-4693-a05e-8678312081cd.filesusr.com/ugd/daca0d_fad43a3975664a1fa4a8dd9715ac4ac8.pdf?index=true
    • 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_off000057d6.bin
ad9ec054d7dde766600872911653023feb44914c62e76979bd19233a2d8f299b
pdf-font-stream PDF embedded font (sfnt) at offset 0x57D6 5204 bytes
font_01_sfnt_off0000695c.bin
0d57b642928ed8f24b6294e1a09cbaf26e174689d49c85402c8fe2447eb8e9bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x695C 10892 bytes