Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fb19daf321c3162…

MALICIOUS

PDF

55.0 KB Created: 2020-08-02 23:25:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ba2365e2c57eaef6919fa62dea241ec SHA-1: 30a42c9afc7643c4e290925b9ee9a2018ba06695 SHA-256: 2fb19daf321c3162d03fe7ad25cae4cbdb81e75a92460419e55a57cf2760d56d
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'the other wes moore online book pdf' and the malicious URL. This suggests a lure to trick users into clicking the link, which then redirects to malicious infrastructure. No scripts were extracted, limiting the analysis of direct payload execution.

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=the+other+wes+moore+online+book+pdf
    • http://files.sachabas.net/uploads/1/3/0/8/130874493/nomimefozapolaw_paxunefu_juniv.pdf
    • http://files.redskinscheerleaderalumni.com/uploads/1/3/1/4/131483234/da97c9.pdf
    • http://files.empirecoffeecompany.co.nz/uploads/1/3/1/1/131164456/tazinusevuda-rejodev-renewof-tutibitevizugi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9825/1165/files/tizajesig.pdf
    • https://cdn.shopify.com/s/files/1/0440/8157/8136/files/30066049629.pdf
    • https://cdn.shopify.com/s/files/1/0433/4003/8298/files/82552303103.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/mosuganivinubifabigap.pdf
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/36142646750.pdf
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/juwegire.pdf
    • https://cdn.shopify.com/s/files/1/0429/4872/2851/files/26664123462.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66491839223.pdf
    • https://cdn.shopify.com/s/files/1/0432/4635/4592/files/45785803956.pdf
    • https://cdn.shopify.com/s/files/1/0431/5404/7137/files/fraction_decimal_percent_chart.pdf
    • https://cdn.shopify.com/s/files/1/0435/8576/5535/files/mubivon.pdf
    • https://cdn.shopify.com/s/files/1/0432/7338/8190/files/41286139939.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_off000087fa.bin
311dbffd3f1f3f191f7b7645e5be46323c5ccaff7e0c8b5f2fc44f7c7e5f4e5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87FA 5104 bytes
font_01_sfnt_off00009937.bin
93ac6e6eff90675d813ebcb716cb354eb97b96fd10db74e926f676f852d66715		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9937 13600 bytes
font_02_sfnt_off0000c0e3.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0E3 4324 bytes

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