Malicious PDF — malware analysis report

Static analysis result for SHA-256 3702723b72ad69ce…

MALICIOUS

PDF

83.7 KB Created: 2020-08-19 20:45:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5bd0231710e8d1af69e4f188598c619 SHA-1: edb03067edc6ef6fb37d50a876a9cdd1beea04a7 SHA-256: 3702723b72ad69cea543532e41986d775413c9424601295a03bef965be52cf3c
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector link, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'Doraemon cartoon' and a URL that matches the redirector. The primary malicious indicator is the link to 'ttraff.ru', which is flagged as a malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/pify?keyword=doraemon+cartoon++kar+do
    • http://files.pcasra.com/uploads/1/3/1/4/131438392/pogeranabolexug_vurufipefujosup.pdf
    • http://pekene.electricscooterrentalorlando.com/uploads/1/3/0/8/130874063/6330756.pdf
    • http://files.magicalchicago.com/uploads/1/3/2/6/132681949/pigigagubaz.pdf
    • http://files.ccaravensbaseball.com/uploads/1/3/1/1/131163752/fewamuwoxi.pdf
    • http://files.threeonabbott.com/uploads/1/3/0/9/130969377/709123.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/97084046562.pdf
    • https://cdn.shopify.com/s/files/1/0434/6147/6504/files/60756458619.pdf
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/madagascar_2_script.pdf
    • https://cdn.shopify.com/s/files/1/0437/9816/7713/files/arch_linux_editor.pdf
    • https://cdn.shopify.com/s/files/1/0435/8828/8670/files/38667288889.pdf
    • https://cdn.shopify.com/s/files/1/0435/2458/7674/files/xifuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/muzaloxebomasu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7177/4615/files/5843774350.pdf
    • https://cdn.shopify.com/s/files/1/0432/0873/6928/files/codeigniter_4_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/2381/1239/files/economic_risk_in_international_business.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/kolenudawovekapugajowo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9505/5765/files/volokoxikevavixikorek.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 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009317.bin
09b13cd16ee6850bec4623e421240fa93769e9c31c3609e9ab554a3fd916b291		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9317 5852 bytes
font_01_sfnt_off0000a774.bin
2ca0c8cb774ea52b6f9763f51218e588a7a237cb59ce5168cee8150541c5a6ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA774 4676 bytes
font_02_sfnt_off0000b734.bin
980545d47c799991ab0ad774e85edd4272c09f2b51c69a3a63b747feff2a3fe8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB734 4612 bytes
font_03_sfnt_off0000c5d1.bin
df0e309605332f4a935991994101f32ac73fadc7d7fd460d54f7449f146aced2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC5D1 2732 bytes
font_04_sfnt_off0000d18d.bin
9c2fbaf2662a684572bcf9695cb3aa3d66c6660a271e0ebdba546f35636d4225		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD18D 6908 bytes
font_05_sfnt_off0000e423.bin
8c7b8ca6e77f09ca6c451c766148b8f46a25025204a4a36b0be84252fb49a725		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE423 12340 bytes
font_06_sfnt_off00010b27.bin
6cd87ef8652651ebd1cd95c480be9b1e95a4832096cb08da491361ca961e63eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B27 17504 bytes
font_07_sfnt_off00012535.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12535 4324 bytes
font_08_sfnt_off00013336.bin
1021d515d171c284ee0462a48bb81aa8241f0451e7b0e5dce27543d5c504505e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13336 2784 bytes

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