Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb5841569b39e61…

MALICIOUS

PDF

47.5 KB Created: 2020-08-20 21:26:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 899e4812a7da5fdeff494db16d3b1494 SHA-1: 7124c4becc513b95f96ad45872b6c4da0d40ad6e SHA-256: 2eb5841569b39e61744b4ab33ff5a7046b22eadef63bd3803f7e983acd73ecf0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains this URL and other embedded URLs, suggesting a lure for users to click through to malicious content. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm strategy to distribute malicious content. The primary malicious URL is https://ttraff.cc/pify?keyword=marvelous+designer+8+free, which likely leads to a further stage of infection.

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=marvelous+designer+8+free
    • http://kipilu.goldencoastbailbonds.com/uploads/1/3/2/7/132712237/valojamivaxoxi-puxenox-mikunifupekuk-luvumag.pdf
    • http://files.parsonsarea.org/uploads/1/3/2/3/132303406/xasosefebekus-relivajosur.pdf
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/39654920253.pdf
    • https://cdn.shopify.com/s/files/1/0431/4100/5480/files/finuwiratolefolunake.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8758/files/30663631789.pdf
    • https://cdn.shopify.com/s/files/1/0438/6720/9883/files/proyecto_arpanet.pdf
    • https://cdn.shopify.com/s/files/1/0438/6937/2576/files/fofoxudabipelifaxefup.pdf
    • https://cdn.shopify.com/s/files/1/0437/0333/7115/files/kukudexabezorokizinufuko.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/libro_el_poder_curativo_de_la_cabala_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/siyavula_physical_science_grade_11_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/4574/6838/files/46673365864.pdf
    • https://cdn.shopify.com/s/files/1/0437/8116/1121/files/employee_recognition_award_templates_free.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_off00006757.bin
f7299e77a8304efb9767a4817b4e88b69c252788107f4f82b119bc295bd5be68
pdf-font-stream PDF embedded font (sfnt) at offset 0x6757 5332 bytes
font_01_sfnt_off00007998.bin
58ac0b52e46190873b8dcd5e5702c953fb1bc1f687f00425c948409f9aa7df8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7998 10096 bytes
font_02_sfnt_off00009c6d.bin
864a95936e1548be9f862905bcef73366e25af90dbbfd591b5cee1365db9df95
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C6D 16100 bytes