Malicious PDF — malware analysis report

Static analysis result for SHA-256 86016cb4a0a7af25…

MALICIOUS

PDF

54.6 KB Created: 2020-08-09 05:05:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 075b17ef487667f3c69b21e45ed90548 SHA-1: 4da5b05a20bae112157da856cb9fb3981bb01e18 SHA-256: 86016cb4a0a7af258ae9e47cfa5b6b925cfabcc8f29810f7a064c61c804bba58
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=feedstock+for+biodiesel+production+pdf', which is likely used to funnel victims to further malicious content. The document also exhibits characteristics of a PDF link farm, aiming to distribute traffic across many external links.

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.cc/pify?keyword=feedstock+for+biodiesel+production+pdf
    • http://files.positivepyramidprogramming.com/uploads/1/3/1/4/131453124/700cfc29.pdf
    • http://files.thecrossingwv.com/uploads/1/3/0/7/130775002/nodowiniroperib.pdf
    • http://velumo.svetaeufemijasociety.com/uploads/1/3/1/8/131871699/9570663.pdf
    • http://files.pagemusicale-lfs.com/uploads/1/3/1/4/131437285/9625138.pdf
    • https://cdn.shopify.com/s/files/1/0428/9213/2508/files/wuleb.pdf
    • https://cdn.shopify.com/s/files/1/0431/3343/6071/files/16152127322.pdf
    • https://cdn.shopify.com/s/files/1/0434/9476/8792/files/gowofokixalik.pdf
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/bollard_pull_test.pdf
    • https://cdn.shopify.com/s/files/1/0434/4414/2245/files/exam_master_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/16717068834.pdf
    • https://cdn.shopify.com/s/files/1/0434/7405/9426/files/70000322986.pdf
    • https://cdn.shopify.com/s/files/1/0433/2532/5467/files/words_their_way_spelling_activities.pdf
    • https://cdn.shopify.com/s/files/1/0431/5430/9274/files/dusozaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/zufekalasumejomarifolivuf.pdf
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/zisivotegodezusapose.pdf
    • https://cdn.shopify.com/s/files/1/0434/4909/0200/files/arborist_certification_study_guide.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_off00009876.bin
48c47f355cc3daa63d1f2bedd51a4eb5781e50fdd02834fb2fe5adbb384a9d61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9876 5096 bytes
font_01_sfnt_off0000a9df.bin
066819ad7be1cb0b26f7a345e4fb407ea5c71c7a40b657d79d6f438e2efa30fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9DF 10568 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.