Malicious PDF — malware analysis report

Static analysis result for SHA-256 a35bb8a9d3e8329c…

MALICIOUS

PDF

48.6 KB Created: 2020-08-03 22:23:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 563e746a455676ef85d88ce39c7c700d SHA-1: 486d0428eaa8c83f5a07a9deea7ef8f259d2901b SHA-256: a35bb8a9d3e8329c251f384efb26a37e66c58563dd84a0fe895cdbe3d18e6b09
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=astral+projection+erin+pavlina+pdf'. This URL is designed to lure users into clicking, likely leading to further malicious content or downloads. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. The presence of numerous external PDF links also suggests a link farm tactic.

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=astral+projection+erin+pavlina+pdf
    • http://files.burgundyproductions.com/uploads/1/3/1/4/131483108/rilufuso.pdf
    • http://files.sunrisehomeownersassociation.org/uploads/1/3/1/6/131607093/wusixokuwewafupu.pdf
    • http://files.jenisonchoirs.org/uploads/1/3/0/7/130776037/40e4939c12729.pdf
    • http://files.deep-learning-site.com/uploads/1/3/0/7/130775623/7577765.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/fojebojefulaxomosoxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4275/9071/files/suwadokufi.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/53462666423.pdf
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/gexadetelagipet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35535883354.pdf
    • https://cdn.shopify.com/s/files/1/0447/8667/9965/files/walking_war_robots_hack_no_survey.pdf
    • https://cdn.shopify.com/s/files/1/0428/3619/7542/files/5839571114.pdf
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/4019217262.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/99062096589.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_off00007f7b.bin
c73cc81e578a912ffc019571158644c4af9efac7b1ecf75730dc4faa25095660		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7B 5276 bytes
font_01_sfnt_off00009185.bin
15b4836366b05dee05e4a388adb0955bedc8d6b802ca0c0a644db2d5b5f43ba3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9185 10028 bytes

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