Malicious PDF — malware analysis report

Static analysis result for SHA-256 36104f0855098b65…

MALICIOUS

PDF

59.3 KB Created: 2020-08-31 16:41:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05ea6c0c835d791aeb5cf7319621516b SHA-1: 6214ac70b69d0cd8a33283aa167e9f37db3d78b5 SHA-256: 36104f0855098b65577abbe24cea415f4f2c9ba11bfaad0afa346068b81fe93d
128 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many pointing to Shopify domains, but one critical link to 'ttraff.com' is flagged as a malicious redirector. The presence of a visual download button lure further supports a malicious intent. The document body, though heavily obfuscated, contains the malicious redirector URL. This suggests the PDF is designed to redirect users to malicious content, potentially for phishing or malware delivery.

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/wix?keyword=ambarisha+film+songs+free
    • https://cdn.shopify.com/s/files/1/0437/9007/4005/files/nimokaxaze.pdf
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/23674929770.pdf
    • https://cdn.shopify.com/s/files/1/0437/8171/8173/files/35220511585.pdf
    • https://cdn.shopify.com/s/files/1/0435/2540/6874/files/loy_krathong_festival_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/3474/6781/files/weather_jackson_tn_radar.pdf
    • https://cdn.shopify.com/s/files/1/0437/6759/5165/files/b_pharmacy_syllabus_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/3575/4650/files/vivadeguzisubiba.pdf
    • https://cdn.shopify.com/s/files/1/0462/3371/4848/files/my_boy_games_super_mario.pdf
    • https://cdn.shopify.com/s/files/1/0432/4576/4770/files/vujawirevom.pdf
    • https://cdn.shopify.com/s/files/1/0432/8210/4478/files/38464380596.pdf
    • https://cdn.shopify.com/s/files/1/0432/3957/1611/files/43274519272.pdf
    • https://cdn.shopify.com/s/files/1/0431/8458/6903/files/73484728365.pdf
    • https://cdn.shopify.com/s/files/1/0437/6857/8210/files/aptitude_examination.pdf
    • https://cdn.shopify.com/s/files/1/0434/5934/6582/files/96304524473.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_off00009214.bin
76301da5266829326e711bb97c15ee36cca3fdc0abaf17ea91d363f02f176731
pdf-font-stream PDF embedded font (sfnt) at offset 0x9214 5020 bytes
font_01_sfnt_off0000a2f3.bin
b00f03bd8d13a60326d80700c2a227c1af8d2558bf8ba2226ed0995015b85aa8
pdf-font-stream PDF embedded font (sfnt) at offset 0xA2F3 14680 bytes
font_02_sfnt_off0000d0b9.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xD0B9 4324 bytes