Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc6ddc53ef542f4…

MALICIOUS

PDF

48.1 KB Created: 2020-08-01 19:24:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59b8a826819a15de009a40db9be0bd0c SHA-1: 0dfaffa27df4ea8aded828152e79eab39eea4794 SHA-256: 9cc6ddc53ef542f49e454399d7b28cdf24e719a9139758a3b41925cfcaa6ce00
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The document body, though partially garbled, contains text related to 'qualification statement' and the malicious URL itself. This suggests a phishing or social engineering attack aiming to redirect the user to a compromised site.

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.ru/pify?keyword=how+do+you+write+a+qualification+statement
    • http://files.mariacamera-smith.com/uploads/1/3/1/4/131453248/jokipojidiret.pdf
    • http://files.teachersaidsforblindchildren.org/uploads/1/3/0/8/130814758/begupobab.pdf
    • http://files.stabletables.net/uploads/1/3/1/4/131483138/ravanidupuweka.pdf
    • http://files.westtrailmassage.com/uploads/1/3/1/3/131398406/8723529.pdf
    • http://files.dirtydrinkdesigns.com/uploads/1/3/0/7/130739786/pokidosukobok.pdf
    • https://cdn.shopify.com/s/files/1/0434/5882/2296/files/69410422107.pdf
    • https://cdn.shopify.com/s/files/1/0432/7686/1606/files/potobomuwe.pdf
    • https://cdn.shopify.com/s/files/1/0431/0876/1764/files/suder.pdf
    • https://cdn.shopify.com/s/files/1/0430/2195/9325/files/xobikinigomujesesikelefa.pdf
    • https://cdn.shopify.com/s/files/1/0440/6634/1029/files/buraf.pdf
    • https://cdn.shopify.com/s/files/1/0432/4871/3896/files/womuravenudisigeroberibi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4711/6197/files/gilitevome.pdf
    • https://cdn.shopify.com/s/files/1/0435/7675/4344/files/9216907788.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasidobedibugamis.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43396058945.pdf
    • https://cdn.shopify.com/s/files/1/0436/3033/0019/files/xevewo.pdf
    • https://cdn.shopify.com/s/files/1/0432/9262/3001/files/xokopakinatixelinusut.pdf
    • https://cdn.shopify.com/s/files/1/0437/5950/1464/files/access_to_modified_closure.pdf
    • https://cdn.shopify.com/s/files/1/0433/1172/6750/files/9366402650.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007062.bin
4a10b68baf2c6a38b2e61d0e74d86c6df84008ca18f373faef592b5eb82e9039
pdf-font-stream PDF embedded font (sfnt) at offset 0x7062 5332 bytes
font_01_sfnt_off00008281.bin
ef1b94ff1636a4e350d128bb90686ebd2bfa604796d4f063f364e3c117187e13
pdf-font-stream PDF embedded font (sfnt) at offset 0x8281 10100 bytes
font_02_sfnt_off0000a4c7.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4C7 4324 bytes