Malicious PDF — malware analysis report

Static analysis result for SHA-256 521ddae1cb54e342…

MALICIOUS

PDF

45.0 KB Created: 2020-08-14 10:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a030b7fc2b3eaafce3243c9500ea3c6 SHA-1: 7fce3dbed751c971bc08c68e72c7244e0edcf763 SHA-256: 521ddae1cb54e342975138b9d725f13f7a7aa7f5dc3fcf3ca05d76612134a3af
120 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, specifically pointing to 'https://ttraff.cc/pify?keyword=avanset+vce++crack'. This indicates the document is designed to trick users into downloading potentially harmful software by posing as a crack. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, limiting further analysis of the payload delivery mechanism.

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=avanset+vce++crack
    • http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.pdf
    • http://files.stilettosinthemud.com/uploads/1/3/0/7/130775063/3955981.pdf
    • http://xutome.wbpstars.com/uploads/1/3/1/4/131453698/7909706.pdf
    • http://salofaxo.franklininternationalbeautystore.com/uploads/1/3/0/8/130874050/kanizewexirebud-lavagekul-kujogaf.pdf
    • https://cdn.shopify.com/s/files/1/0449/9750/9278/files/addictive_drugs.pdf
    • https://cdn.shopify.com/s/files/1/0435/2838/8772/files/jigesidobinodetevudej.pdf
    • https://cdn.shopify.com/s/files/1/0432/5185/9611/files/addicted_novel_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/35502536312.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21883700101.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1303/files/45043430221.pdf
    • https://cdn.shopify.com/s/files/1/0440/9524/2392/files/tagededimo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3633/6540/files/vibuwusanaxasezen.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6050/files/31871546799.pdf
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/41045265103.pdf
    • https://cdn.shopify.com/s/files/1/0431/9779/2420/files/75449655359.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_off0000728d.bin
ea036f5ccaf49182296fc1d9b3cf59c02789d298123fb3b0350df51021f6c37a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x728D 4876 bytes
font_01_sfnt_off00008331.bin
b0fd3a314b34807c057a26555db7ace5bae54e8521990e50222e83a5b6ff56fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8331 10716 bytes

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