Malicious PDF — malware analysis report

Static analysis result for SHA-256 adcf6b0ed9a8bc6d…

MALICIOUS

PDF

46.5 KB Created: 2020-07-30 21:59:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb52ace4cf797ab43356a6bbe279859a SHA-1: efd8425581e0355251f8fb43d5141343c7b3d3b8 SHA-256: adcf6b0ed9a8bc6dc2cad0187e5c20167b8d007b35bd60c09c5c0eaabe51d9e4
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is designed to lure users into downloading further content. The document body, though heavily obfuscated, contains text related to a PDF download, reinforcing the lure. The presence of numerous external links, including the primary malicious one, indicates a link farm strategy to distribute malicious content.

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=benny+lewis+fluent+in+3+months+pdf+download
    • http://files.mirrorsofgodslove.org/uploads/1/3/1/4/131483138/jokaz-diwuve.pdf
    • http://files.francespanunto.com/uploads/1/3/0/9/130969580/6349057.pdf
    • http://files.hathafun.com/uploads/1/3/1/1/131163836/3319517.pdf
    • https://cdn.shopify.com/s/files/1/0429/9105/9097/files/62130186102.pdf
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/nilukugewezamezakux.pdf
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/45192108165.pdf
    • https://cdn.shopify.com/s/files/1/0437/6700/5333/files/nopovuwududawidujoziger.pdf
    • https://cdn.shopify.com/s/files/1/0438/9765/1352/files/6531550825.pdf
    • https://cdn.shopify.com/s/files/1/0428/9688/3868/files/nusidotav.pdf
    • https://cdn.shopify.com/s/files/1/0432/5815/1070/files/letixosumavan.pdf
    • https://cdn.shopify.com/s/files/1/0429/4272/6310/files/52712632269.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78214852322.pdf
    • https://cdn.shopify.com/s/files/1/0431/1112/1057/files/feronuvaxo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6486/0580/files/gimevidup.pdf
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/jujunanepawafuzepe.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_off0000786c.bin
b075537d89976518569d857e715e7c10fad0ff9c4bbca528f662794dc0109f4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786C 5476 bytes
font_01_sfnt_off00008afa.bin
714b23849c677bbd5593d3847c1f8fbf0777f408e917c2eb712e3ca9e3cd2e57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFA 9996 bytes

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