Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d13f8d397602df…

MALICIOUS

PDF

48.1 KB Created: 2020-07-30 14:47:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01ddb05705c38e9d26e3fb3a9971c623 SHA-1: 687532e73274986604bf3cb1fd5b39ff360bea20 SHA-256: d1d13f8d397602dfd2a39790e33b1ee372569b39650529ea4d5d3f623f70f2a9
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The presence of these indicators suggests the document is designed to redirect users to malicious infrastructure, likely for phishing or to download further malware.

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=askep+angina+pektoris+tidak+stabil+pdf
    • http://files.bcdoffshore.com/uploads/1/3/1/6/131606638/dupekofoweronemed.pdf
    • http://files.custombuilddeckshamilton.com/uploads/1/3/0/9/130969710/wijupoxurese.pdf
    • http://files.beyondthedeskleadership.com/uploads/1/3/0/7/130738892/dizip.pdf
    • http://files.onthewayotw.com/uploads/1/3/0/7/130775297/debago.pdf
    • http://files.theinkwelltheatre.org/uploads/1/3/0/7/130775197/bejofanoputaxuv.pdf
    • http://files.theinkwellthea
    • https://cdn.shopify.com/s/files/1/0437/2522/6152/files/64695391513.pdf
    • https://cdn.shopify.com/s/files/1/0434/4014/4534/files/3248612846.pdf
    • https://cdn.shopify.com/s/files/1/0430/3002/0247/files/95442170758.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/fulomazus.pdf
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/sugugiguxidobiparelexit.pdf
    • https://cdn.shopify.com/s/files/1/0432/1899/3307/files/33780789814.pdf
    • https://cdn.shopify.com/s/files/1/0432/0401/8336/files/25402836110.pdf
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/nupowalewutetikilepobidof.pdf
    • https://cdn.shopify.com/s/files/1/0441/3505/5512/files/birawedukologemulagiwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/tivurudelajujuworokozuli.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_off00007e3b.bin
a1e3ec28d88e95687a50b8abea1cfe489cf662315005e6f5786212860ecfa012		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E3B 5192 bytes
font_01_sfnt_off00008fe5.bin
4b2d538920cb07af75c7a9a1a870d3f03844b14c7ee4f57205ba61e56a7091b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE5 10864 bytes

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