Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d0c27c68e0e649…

MALICIOUS

PDF

45.1 KB Created: 2020-08-25 09:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b16b8161fdfaf845ed81ffe1faf6d7e9 SHA-1: 8b0e107877f43f00e02d050e4b89968f709bf73a SHA-256: 96d0c27c68e0e6493b55f6ff0af939d63ad2036c175e38164402f59bcd0ef524
150 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is embedded within the document body, disguised with keywords related to new Android phones, suggesting a phishing or scam lure. The PDF also contains a large number of external links, many hosted on Shopify, which is flagged as a link farm. The ML classifier strongly indicates maliciousness.

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=new+android+phones+upto+10000
    • http://files.mbccfaith.org/uploads/1/3/0/8/130874067/sisurusowikojot-vizip-turepo-jafededafa.pdf
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/congenital_cavernous_malformation_of_portal_vein.pdf
    • https://cdn.shopify.com/s/files/1/0432/4392/9757/files/adidas_stan_smith_platform_sneakers.pdf
    • https://cdn.shopify.com/s/files/1/0428/7833/7187/files/10050126742.pdf
    • https://cdn.shopify.com/s/files/1/0433/4813/2008/files/suvijekajelobox.pdf
    • https://cdn.shopify.com/s/files/1/0460/1744/6055/files/charles_schwab_roth_ira_conversion_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/developmental_biology_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/dodedebamolubimaregijudu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3255/9267/files/58074392877.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vixegenosevisime.pdf
    • https://cdn.shopify.com/s/files/1/0435/4365/8650/files/54012622520.pdf
    • https://cdn.shopify.com/s/files/1/0432/8872/3616/files/dabekoj.pdf
    • https://cdn.shopify.com/s/files/1/0437/6264/7191/files/90387093733.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/
    • https://cdn.shopify.com/s/files/1/0432/8872/3616/files/d

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007267.bin
c7175451dae1a4b7dd77c2786c82fc1dd7bd328b79ee3d2e95c8857701a4c710		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7267 5268 bytes
font_01_sfnt_off0000845c.bin
80ac31479646e4b85c5a24dae1d3bbdc50beb7f70b4031a30f709b997777cb51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x845C 10316 bytes

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