Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac15c0cc6d1f27a0…

MALICIOUS

PDF

42.0 KB Created: 2020-08-11 15:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44b51660e815f44f23907542317bda9b SHA-1: e357a7fbf4a42424561b31fdeefb775ce4dd1bf9 SHA-256: ac15c0cc6d1f27a041d536b107ddbfb1c45b3ad5661b2aa51a70df33b02d9d7c
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'business plan school project pdf' and the malicious URL itself. The primary attack pattern involves luring users through deceptive content to a redirector, likely for further malicious activity.

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.com/pify?keyword=business+plan+school+project+pdf
    • http://files.goodstuffprimaryresources.com/uploads/1/3/2/6/132681204/lamumolop.pdf
    • http://files.jarredantonacci.com/uploads/1/3/1/3/131381799/zarofuj.pdf
    • http://gupugere.ptahinitiative.com/uploads/1/3/2/8/132814930/8930888.pdf
    • https://cdn.shopify.com/s/files/1/0432/6411/4852/files/simple_biochemistry_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/3591/7464/files/daxarazebesemaxeje.pdf
    • https://cdn.shopify.com/s/files/1/0436/9409/6539/files/como_hacer_una_tesis_descriptiva.pdf
    • https://cdn.shopify.com/s/files/1/0429/9787/4851/files/81718133380.pdf
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/guilfoyle_international_criminal_law.pdf
    • https://cdn.shopify.com/s/files/1/0429/5743/9129/files/auto_spare_parts_business_plan_sample.pdf
    • https://cdn.shopify.com/s/files/1/0434/5180/9942/files/600529288.pdf
    • https://cdn.shopify.com/s/files/1/0434/1124/3162/files/kitetogi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/vutugewiribolinas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mosagewenusuwaguxizekud.pdf
    • https://cdn.shopify.com/s/files/1/0429/1274/3591/files/sisolewejupusov.pdf
    • https://cdn.shopify.com/s/files/1/0447/9696/9109/files/craftsman_walk_behind_trimmer.pdf
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/5065676436.pdf
    • https://cdn.shopify.com/s/files/1/0431/8933/8276/files/pakotozuberokunikexi.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_off000066eb.bin
bc40d7f971d022b2ab6edc222f29bf4e8c9f75c1a8040176c796871b4223de06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66EB 5368 bytes
font_01_sfnt_off00007920.bin
da8db4774e9bbf04071d26211a597a3f79e480fd20f5ddafd0f085d9316e4f99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7920 9960 bytes

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