Malicious PDF — malware analysis report

Static analysis result for SHA-256 b906c69362eca24a…

MALICIOUS

PDF

54.6 KB Created: 2020-08-05 03:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06c4f1f5e828e829efd99674d2968600 SHA-1: f814a11bc06c9eabf5d450fbc6fbbb42f08fbd87 SHA-256: b906c69362eca24a6ff32398d51559a2c3a6735a6240c38c5e188d83b40e2a85
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=a+successful+git+branching+model+pdf'. This indicates the document is designed to trick users into visiting a malicious site under the guise of providing a PDF on a technical topic. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious redirector. No scripts were extracted from this sample.

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=a+successful+git+branching+model+pdf
    • http://files.drrosadilorenzo.com/uploads/1/3/1/4/131453402/tigafawowonefojotore.pdf
    • http://files.aandrdesignsinc.com/uploads/1/3/2/7/132740285/dimigibux.pdf
    • http://jobukit.postpartumslimdown.com/uploads/1/3/0/7/130775422/kemisirokusiv.pdf
    • http://files.scandinavianmom.com/uploads/1/3/1/4/131455024/52791813.pdf
    • http://files.fairlightfolk.com/uploads/1/3/2/6/132681587/eeb9a92f.pdf
    • https://cdn.shopify.com/s/files/1/0434/4066/8838/files/33988849074.pdf
    • https://cdn.shopify.com/s/files/1/0430/3683/5993/files/acceptance_and_commitment_therapy_metaphors.pdf
    • https://cdn.shopify.com/s/files/1/0438/5941/1094/files/15488804495.pdf
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/xabuzikidamik.pdf
    • https://cdn.shopify.com/s/files/1/0431/7695/1957/files/95979659523.pdf
    • https://cdn.shopify.com/s/files/1/0432/0375/6191/files/25864932567.pdf
    • https://cdn.shopify.com/s/files/1/0432/2836/4968/files/60942049806.pdf
    • https://cdn.shopify.com/s/files/1/0439/3356/5096/files/4720349273.pdf
    • https://cdn.shopify.com/s/files/1/0431/1764/1879/files/verevisowotarov.pdf
    • https://cdn.shopify.com/s/files/1/0429/7929/5383/files/wiwuseselivip.pdf
    • https://cdn.shopify.com/s/files/1/0431/3723/7148/files/33125219431.pdf
    • https://cdn.shopify.com/s/files/1/0431/6571/2535/files/39206144749.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5280/files/74920294213.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_off0000827a.bin
9fea7d14b43ae23f7583f069e1d9e0617b9a5eeca62745e2c8c609d8f83a6a3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x827A 3764 bytes
font_01_sfnt_off00008fcf.bin
3108f2fecbb0a5ae1fb11a58b473d8477a9a65384f975c88db64cfb9245328ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FCF 5700 bytes
font_02_sfnt_off0000a301.bin
fc8df7d81449211e20e441a64d2f08d5f5a8b707be5e013fa63ec5cb86eaa627
pdf-font-stream PDF embedded font (sfnt) at offset 0xA301 12848 bytes