Malicious PDF — malware analysis report

Static analysis result for SHA-256 48d07a69ae933570…

MALICIOUS

PDF

32.4 KB Created: 2020-08-19 07:01:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 684b5952aea67171a1b8c0064cb910e7 SHA-1: 69fc0f5b620ed1aa669b0195851f2a6ffec59b16 SHA-256: 48d07a69ae9335702bc6f7237e9e2a1dce182aa215dd8a984a8037df7a68107b
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text suggesting a lure for free Photoshop backgrounds, combined with a visual call-to-action heuristic. This indicates a phishing or social engineering attack aiming to redirect the user to malicious content.

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/pify?keyword=psd+hd+backgrounds+for+photoshop+free
    • http://files.kimonbekelis.com/uploads/1/3/2/6/132695492/c882c0.pdf
    • https://cdn.shopify.com/s/files/1/0440/2990/2998/files/wobukoxamufil.pdf
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/jizizonil.pdf
    • https://cdn.shopify.com/s/files/1/0430/3470/6069/files/graphing_linear_inequalities_practice_worksheet_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0437/8850/1143/files/dosafa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5891/2662/files/rubik_s_cube_cfop_algorithms.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/firugajukuverekukewa.pdf
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/irrigation_engineering_by_rk_sharma_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/4253/5574/files/35289416716.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2485/files/kusazipenidagomobifuji.pdf
    • https://cdn.shopify.com/s/files/1/0434/9257/3334/files/24276840050.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000414b.bin
c4dc49d4a4c12f3435cb582eac960cff58d14624a6f6fc94bd2d39a314fb214d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x414B 5588 bytes
font_01_sfnt_off0000543a.bin
af88db226ff7ab3c5f568bda2b18121cff14c9b64f23f7fd61cd2d4b782b6db7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x543A 9692 bytes

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