Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bb36da835ad3e1f…

MALICIOUS

PDF

49.6 KB Created: 2020-08-14 21:30:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: adf1994be9dcfabf33ff154d94c52195 SHA-1: 6ec103ec8d81a74a9792e3d5dbd3fbc4ef5c85cc SHA-256: 9bb36da835ad3e1fc69454f4b04978ecffbb33c67857bafa7531921d7d9e6522
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=modern+resume+template+free+indesign'. This URL is presented in the context of a resume template lure. The PDF also contains a link farm, suggesting an attempt to manipulate search engine results or distribute content widely. No scripts were extracted, but the presence of malicious redirectors and the document's deceptive content strongly indicate a phishing or malware delivery attempt.

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=modern+resume+template+free+indesign
    • http://files.bajarallyschool.com/uploads/1/3/0/9/130969377/fazizu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/30966623217.pdf
    • https://cdn.shopify.com/s/files/1/0437/0314/0506/files/casablanca_tourist_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/5777/3718/files/9.pdf
    • https://cdn.shopify.com/s/files/1/0437/3712/0933/files/19959271132.pdf
    • https://cdn.shopify.com/s/files/1/0431/9779/2415/files/65211275723.pdf
    • https://cdn.shopify.com/s/files/1/0434/4473/2065/files/savibedamopujomi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0279/0039/files/pafexelawibidaron.pdf
    • https://cdn.shopify.com/s/files/1/0431/8494/7357/files/nevugetifafuwawidugowedo.pdf
    • https://cdn.shopify.com/s/files/1/0438/6809/4629/files/sowezadosadibewomij.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/calculations_in_quantum_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mokotutirajozejimus.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006de9.bin
3be3e84c4dbeb2133782cc5baf0e882e56dc81e357edb1b265c7abd0f3d38af8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE9 5364 bytes
font_01_sfnt_off0000801a.bin
9b3afe852385ea048fbaa1a9d45ed40e6e61bdff32cd5a43b8829a4da5c2b465		 pdf-font-stream PDF embedded font (sfnt) at offset 0x801A 10468 bytes
font_02_sfnt_off0000a39b.bin
7267daefadc78e36a59a8256c9de3cb1d55b7e78bfd16df4589f701e931930c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA39B 16324 bytes

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