Malicious PDF — malware analysis report

Static analysis result for SHA-256 b59a4e6f396a6b53…

MALICIOUS

PDF

48.6 KB Created: 2020-08-30 21:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4bd55b8ff455c0d19d4153cc95103fea SHA-1: cf773955201a7375b8685c7c909945a8d0d8bee6 SHA-256: b59a4e6f396a6b5380386ace5b0c60034f64ae04944677eb81cc969a8d01de51
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a movie title ('Bajo la misma estrella') and the URL itself also references this title, suggesting a lure to download content. The presence of a link farm heuristic further indicates a malicious intent to redirect users to external sites.

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.ru/wix?keyword=bajo+la+misma+estrella+descargar+latino
    • https://cdn.shopify.com/s/files/1/0439/0027/2792/files/81215008939.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/financial_projections_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/4830/4797/files/wolivalakup.pdf
    • https://cdn.shopify.com/s/files/1/0427/9782/6207/files/zejanogerufogojajew.pdf
    • https://static.usrfiles.com/ugd/3826db_76991ba2436a4a028a90166553227f55.pdf
    • https://cdn.shopify.com/s/files/1/0438/0724/4450/files/79240360588.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ligumugazawebamupewav.pdf
    • https://static.usrfiles.com/ugd/b8c837_258a96fa30bd41219800a6511a5ec1bc.pdf
    • https://static.usrfiles.com/ugd/b85eb0_2bb31401fa134b59a3edde20d181a714.pdf
    • https://static.usrfiles.com/ugd/b8c837_20120a4b11384d389bb93c1fe5809df7.pdf
    • https://static.usrfiles.com/ugd/b8c837_d7d4c758886f40a9b6d0af59fc2fe025.pdf
    • https://static.usrfiles.com/ugd/e5412a_319ad82e8cc045afb9549a24dd433a82.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005631.bin
67728a8398129a17189676d0da46933a071eafec030196516b0edec77de9dad8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5631 4992 bytes
font_01_sfnt_off0000676a.bin
9f173e29cb267041fcee8d6b182acb394ea59ce79087753ef6b5337d467b2797		 pdf-font-stream PDF embedded font (sfnt) at offset 0x676A 5384 bytes
font_02_sfnt_off000079a5.bin
0f64adf7af1b6b468c8a22debbb390bb57c13a70fe434241f594891bbce5ee76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79A5 11124 bytes
font_03_sfnt_off00009e3b.bin
2fa4f296fe9e38b1bea2264e65e06c45fbbf4edfcb32b68fd436b1108ab95b01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E3B 16096 bytes

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