Malicious PDF — malware analysis report

Static analysis result for SHA-256 be93a60700c146b2…

MALICIOUS

PDF

35.3 KB Created: 2020-08-02 22:18:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7652277c8b57d7288c3f5cdfdac81c58 SHA-1: 7ff818e52b3905dfb3d35f0653e974b5dedda39a SHA-256: be93a60700c146b26e1d79c530bed26249f996c1c51454d9011073b41af5d6b3
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is disguised as a truck parts manual. This suggests a phishing or scam attempt to redirect users to malicious content. No scripts were extracted from this sample.

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.cc/pify?keyword=ottawa+yard+truck+parts+manual
    • http://files.yahuwahsoasis.com/uploads/1/3/1/8/131871874/zofokuvatesoxadusu.pdf
    • http://ruxori.getconnectededu.com/uploads/1/3/1/4/131453674/7071078.pdf
    • http://files.ladlesofhope.org/uploads/1/3/1/4/131406982/lebuwefumugabiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdf
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/78924943628.pdf
    • https://cdn.shopify.com/s/files/1/0436/5107/2153/files/intro_stats_deveaux_4th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/3248/6823/files/keroluxezuzova.pdf
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/lipukux.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/mujejeno.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/viloronijiletamuzolodoxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/32754859533.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/47581188920.pdf
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/deraz.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/image_color_inverter.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5710/files/wojorofuvivubatuwa.pdf
    • https://cdn.shopify.com/s/files/1/0434/0632/7959/files/65534386257.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_off00004d5c.bin
8608065b55929bb7f6ba44b0d281792daf10d31bb3adc37c3591fd68271fdc00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D5C 5504 bytes
font_01_sfnt_off0000601a.bin
9d73f7b50208d3cdc02e52792f25fac5e9ed378eb195a084d8072a7cc809fc01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x601A 9412 bytes

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