Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ba1a6ea7459ca3a…

MALICIOUS

PDF

40.3 KB Created: 2020-08-09 07:25:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7616d869e98451afb4089b6df8f5b120 SHA-1: 455db0eddee9f0082e70feed8484198ad6552136 SHA-256: 4ba1a6ea7459ca3af0e6bd85a9c079fafb0d790dbb6ddf6a9838836f4cf43288
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, however, directs to a known malicious redirector at 'ttraff.cc'. This suggests a social engineering attack aiming to redirect users to malicious content. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or execution methods.

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=way+back+home+guitar+tab+pdf
    • http://files.sarahclariusphotography.com/uploads/1/3/0/8/130814596/nagawesenupem.pdf
    • http://files.julijanahajdinjak.com/uploads/1/3/1/4/131453268/3622891.pdf
    • http://files.sworldmusic.com/uploads/1/3/1/4/131406430/kuxakekajovowuti.pdf
    • http://files.truecaredentistocala.com/uploads/1/3/2/7/132740464/fizaraf.pdf
    • https://cdn.shopify.com/s/files/1/0447/1826/0377/files/hot_body_contest.pdf
    • https://cdn.shopify.com/s/files/1/0435/7236/3432/files/gold_wedding_jewellery_designs_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0428/2341/8019/files/modern_automotive_technology_6th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/2756/1628/files/78502623701.pdf
    • https://cdn.shopify.com/s/files/1/0434/2179/4460/files/badurubitazotore.pdf
    • https://cdn.shopify.com/s/files/1/0434/8307/0630/files/82279563773.pdf
    • https://cdn.shopify.com/s/files/1/0431/8937/1040/files/17448921253.pdf
    • https://cdn.shopify.com/s/files/1/0431/4749/3536/files/44975861804.pdf
    • https://cdn.shopify.com/s/files/1/0432/8197/3416/files/pisalolisimafefid.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/26339926374.pdf
    • https://cdn.shopify.com/s/files/1/0437/5147/3303/files/buliludit.pdf
    • https://cdn.shopify.com/s/files/1/0436/6820/9814/files/wave_function_of_the_universe.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_off000049c0.bin
9ae25a5284a9592eb3f8a35ee8b19add0294c812fd61a8ebbb88dfab6bcf2458
pdf-font-stream PDF embedded font (sfnt) at offset 0x49C0 2972 bytes
font_01_sfnt_off00005465.bin
c553490a103c6cd26062d41825372fcc7b17919bc1fb219af91c7862f0377045
pdf-font-stream PDF embedded font (sfnt) at offset 0x5465 5680 bytes
font_02_sfnt_off000067a1.bin
ed3c0bb0e39e7a25d2b6ad1da2c115ad8aadc4266ab486bf5f52c145212faf98
pdf-font-stream PDF embedded font (sfnt) at offset 0x67A1 13644 bytes