Malicious PDF — malware analysis report

Static analysis result for SHA-256 faf30c45f0e677f1…

MALICIOUS

PDF

48.9 KB Created: 2020-08-09 03:15:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 584b59fa53e16a03095d4f5533e07e2c SHA-1: d75f0b6bbcdbc30692c736ab601955a72f0afa89 SHA-256: faf30c45f0e677f131fd99f7279ca759340d966c26c55049dd918fd75213878a
120 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it's a malicious redirector and part of a link farm, designed to drive traffic to external sites. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic. This suggests the primary goal is to redirect the user to malicious infrastructure.

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=business+process+improvement+toolbox+pdf
    • http://pufuj.honeybeeandblossom.com/uploads/1/3/1/3/131383664/3517007.pdf
    • http://files.fernandoandradeart.com/uploads/1/3/1/8/131871690/2ae287c7f66.pdf
    • http://files.sydneywaterpoloyouthfestival.com.au/uploads/1/3/1/8/131871433/januxig-sunoziri-lutala-dozanugemov.pdf
    • http://files.extremeluxurygetaways.com/uploads/1/3/1/3/131379040/gasixada.pdf
    • https://cdn.shopify.com/s/files/1/0433/0432/1184/files/67565581986.pdf
    • https://cdn.shopify.com/s/files/1/0434/0583/6444/files/92614992015.pdf
    • https://cdn.shopify.com/s/files/1/0441/1277/3272/files/18490079538.pdf
    • https://cdn.shopify.com/s/files/1/0432/1912/4382/files/22410927941.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/35797830980.pdf
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/54023119136.pdf
    • https://cdn.shopify.com/s/files/1/0433/4541/2261/files/5873334209.pdf
    • https://cdn.shopify.com/s/files/1/0448/1505/7056/files/breves_de_comptoir_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0437/8948/4189/files/72921966706.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/jufomaka.pdf
    • https://cdn.shopify.com/s/files/1/0431/1977/1799/files/41329276294.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/
    • https://cdn.shopify.com/s/files/1/0432/19

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008144.bin
05517dfda5eb5d94b60a3a30dd6c8e137501832a2f1197dbbb53eb545a03e0f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8144 5408 bytes
font_01_sfnt_off0000939d.bin
5764135c30d83d05814650fceb845af4fb5dbd1351289f11b8302150e4fb0a66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x939D 10204 bytes

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