Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba8b83233326711b…

MALICIOUS

PDF

64.3 KB Created: 2020-08-10 14:17:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6790e07713aab8b77b2d62e3c0b181be SHA-1: 66030ff8b5da5563d260c58c425e3b99561c5934 SHA-256: ba8b83233326711b527bb1749b7118dbc56860ffd3b6a2fe856072e1575bbfe2
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 pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, including one to 'cdn.shopify.com'. The primary attack vector appears to be social engineering via a deceptive link within the PDF.

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.com/pify?keyword=pavane+de+la+belle+au+bois+dormant+pdf
    • http://rojuju.plymouthmusiclessons.com/uploads/1/3/2/7/132740805/nojapesudifomej.pdf
    • http://files.equityestates.org/uploads/1/3/2/6/132681749/8563644.pdf
    • http://files.howardbands.com/uploads/1/3/0/7/130739898/zotalametusowufo.pdf
    • http://zimonep.valentinamendicino.com/uploads/1/3/0/8/130814328/moduwotot-razovone.pdf
    • https://cdn.shopify.com/s/files/1/0436/0175/6323/files/fikukuk.pdf
    • https://cdn.shopify.com/s/files/1/0428/8276/0870/files/adding_and_subtracting_integers_activity.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/dafokiloxunite.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.pdf
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/kapemawerimop.pdf
    • https://cdn.shopify.com/s/files/1/0429/5547/3059/files/71500769469.pdf
    • https://cdn.shopify.com/s/files/1/0438/2025/3344/files/72343889959.pdf
    • https://cdn.shopify.com/s/files/1/0431/8491/4583/files/86642926929.pdf
    • https://cdn.shopify.com/s/files/1/0432/7496/1059/files/75652355603.pdf
    • https://cdn.shopify.com/s/files/1/0429/0412/5599/files/gigenox.pdf
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/63894470911.pdf
    • https://cdn.shopify.com/s/files/1/0438/1927/0306/files/vilorenojunoninolu.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_off00009294.bin
aca5e88a74d270522be9a98347734f40729c8ab79602dc9b5c053746fa99bb25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9294 5388 bytes
font_01_sfnt_off0000a4cd.bin
03227f7feeaf7b23143e0407a0e891e25789c0f1bce3af67dda4534422d1dd0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4CD 18852 bytes
font_02_sfnt_off0000dcf1.bin
15a68420f1c377824b8c1fd571ac7c30556db1b4bc05006bf44ec3f6c6c83208		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF1 16120 bytes

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