Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bf98e0bf423b4f0…

MALICIOUS

PDF

42.0 KB Created: 2020-09-19 18:45:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fc2c5f56a07ff415ff8db01fa62215b SHA-1: 50ac1e96163c93d87fa35b5e246a48f6cd4097bd SHA-256: 2bf98e0bf423b4f0eb121a9a10e2beb839bf1c479e85a018fdb209f330a367c3
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a primary malicious redirector URL disguised as "blues piano lessons pdf". This suggests a phishing or scam attempt to redirect users to malicious infrastructure. No scripts were extracted, limiting the analysis of further payload delivery or 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.me/wix?keyword=blues+piano+lessons+pdf
    • http://files.mimifuchs.com/uploads/1/3/0/8/130813413/xudafuteleworunimu.pdf
    • http://kebutot.bodywisdommelaniepalm.com/uploads/1/3/2/3/132303195/2813673.pdf
    • http://xapajite.goodmansartcachets.com/uploads/1/3/1/3/131380600/ruzonoko-dixogelofez.pdf
    • http://files.jessieisokay.com/uploads/1/3/2/6/132682106/b8433a0b0.pdf
    • http://files.briannajeansonne.com/uploads/1/3/2/7/132740241/jimiguwod_jepoguni_rapeteriwib.pdf
    • https://01496b6e-ef0d-4a2f-a6fc-875274c2678e.filesusr.com/ugd/4c1554_06a58cfb1dc441f082156db9b3111136.pdf?index=true
    • https://9f76119b-68b3-4541-8976-9f25dc0f580d.filesusr.com/ugd/35ddae_499ccc1beefb405597909b7c59eb7ee5.pdf?index=true
    • https://6e7c0011-af9e-44a4-bd1e-a1f8698da1b9.filesusr.com/ugd/db80c5_f371f75160154bf19508ea149f914c85.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0436/0385/3476/files/4681956102.pdf
    • https://6208749b-0e99-4c07-bcb0-159fe06398d2.filesusr.com/ugd/3bbd68_956d85eeea754fc3b15121ede30e65e3.pdf?index=true
    • https://5bc3b37b-49ea-4cb6-9a6f-a8a31f483022.filesusr.com/ugd/69b86f_0333fdde306f41aaabb10e50428f0f6b.pdf?index=true
    • 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_off000067df.bin
aafdea67d983cdcdfc33df823a8f74c0d6019898a3ae15d8b81c06b8b9543193		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67DF 4988 bytes
font_01_sfnt_off000078f0.bin
556b357f4a9eb8515b49f8699784f9ef389602c2525ab180ac5e15095170bf3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78F0 10172 bytes

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