Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb5812f0c016cd03…

MALICIOUS

PDF

34.3 KB Created: 2020-08-10 20:32:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9eccccb99af621b618b884ebabcfd0c1 SHA-1: bee503ebeac343211a85ca746430c254146b88b8 SHA-256: cb5812f0c016cd03edc8405daf4634e26cc053850f47e9c99f87620f82574ca5
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially garbled, suggests a lure for a free PDF download. The primary malicious link, https://ttraff.com/pify?keyword=bastien+piano+basics+level+2+pdf+free+download, is designed to redirect users to potentially harmful content. The presence of a large number of external PDF links further indicates a link farm or SEO manipulation tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=bastien+piano+basics+level+2+pdf+free+download
    • http://fedadizu.purpleribbonpublishing.com/uploads/1/3/0/7/130738799/cec463bcdac6.pdf
    • http://files.anglesborons.com/uploads/1/3/1/6/131637589/9a1c6b88.pdf
    • http://files.powsfsu.org/uploads/1/3/2/6/132695601/4443856.pdf
    • http://fodijojim.kushyboutique.com/uploads/1/3/0/8/130874284/wewawabekinewuwur.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/zolomibotin.pdf
    • https://cdn.shopify.com/s/files/1/0440/9743/7848/files/samajolivu.pdf
    • https://cdn.shopify.com/s/files/1/0438/6196/7013/files/59607360653.pdf
    • https://cdn.shopify.com/s/files/1/0435/2406/3392/files/roblox_paid_exploits.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0679/files/42358466143.pdf
    • https://cdn.shopify.com/s/files/1/0440/6951/9510/files/60429570041.pdf
    • https://cdn.shopify.com/s/files/1/0434/7700/8550/files/majiwazutowudabarexu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8145/0147/files/bofugodawizexiwomevilu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/vimimuxizemutun.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_off0000472c.bin
cdb71827cee38d2c2f1bff11fa0032df865b7dcc3f2190cc33e1eb6c77636d61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x472C 5624 bytes
font_01_sfnt_off00005a61.bin
7463a7b74fa127c6991921571937e37a769c03c4a1d8d5a7f0ccc1ca09e35ae6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A61 9952 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.