Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdb87fdb0b714934…

MALICIOUS

PDF

57.9 KB Created: 2020-08-02 08:06:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dfd7eaab99aab3dea94d4c0b6294f32 SHA-1: 8e681a8ba3e68f6755fa679de1198b18791c109f SHA-256: bdb87fdb0b714934519e169cbf3d53e1fffcb3154bdaf804c38b481fe9423e0d
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a redirector URL that is known to host malicious content. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to trick the user into clicking the malicious link, likely leading to further compromise.

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.cc/pify?keyword=pony+creator+minecraft
    • http://files.glendalequiltguild.org/uploads/1/3/2/7/132740498/131877.pdf
    • http://files.sassychicmidland.com/uploads/1/3/1/0/131070561/talilamu_fenowevi_topebasirin_gikapi.pdf
    • http://files.atomicnature.org/uploads/1/3/2/6/132682778/5c163b.pdf
    • http://files.mssallyschultz.com/uploads/1/3/1/4/131453917/ritesiz.pdf
    • http://files.monstermaniagame.com/uploads/1/3/0/7/130775098/4167422.pdf
    • https://cdn.shopify.com/s/files/1/0434/9935/6324/files/73342883053.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/vojuzosiwolukubolize.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/jigedo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/milegibaludifojivezibap.pdf
    • https://cdn.shopify.com/s/files/1/0428/7456/8860/files/baxufaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/50129116072.pdf
    • https://cdn.shopify.com/s/files/1/0429/6641/7571/files/91961024967.pdf
    • https://cdn.shopify.com/s/files/1/0434/7287/9782/files/maplestory_forest_of_the_priest.pdf
    • https://cdn.shopify.com/s/files/1/0431/7793/5005/files/bafewilon.pdf
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/88349145297.pdf
    • https://cdn.shopify.com/s/files/1/0438/6134/4406/files/sofamivupi.pdf
    • https://cdn.shopify.com/s/files/1/0428/3452/6375/files/rogozetu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4197/9553/files/kifuzomagakivadu.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_off0000a5b3.bin
8386c300e4206fb793b16bd96873d10884fa8dc8429ddd6938eeaab3af5db196		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5B3 4920 bytes
font_01_sfnt_off0000b669.bin
294df15128112d010b196576dd657477a91a80b0a3795bead5c87c9b189b6c03		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB669 10632 bytes

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