Malicious PDF — malware analysis report

Static analysis result for SHA-256 f986a60ca6cbc2cc…

MALICIOUS

PDF

113.9 KB Created: 2020-08-18 20:02:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c6089362fda1b90399bf8a7d8ff57d36 SHA-1: 535f8f7d20e6304d043b4b0a1e7585c5f1caf2fa SHA-256: f986a60ca6cbc2cc59f5f06839ed5abc7c8bbf89a01735389a1efd232a6c20c7
160 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a 'civicus report 2017' lure. The primary malicious IOC is the redirector URL 'https://ttraff.cc/pify?keyword=civicus+report+2017', which is likely used to funnel victims to a phishing or advance-fee scam site, as indicated by the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=civicus+report+2017
    • http://naxobe.watergardenclubst.org/uploads/1/3/2/6/132681352/rutexorifavu_pelusima.pdf
    • http://likavajo.waltonsviewfarm.com/uploads/1/3/0/8/130874422/tepobajulefitigu.pdf
    • https://cdn.shopify.com/s/files/1/0447/8589/3542/files/53776141809.pdf
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/83028048916.pdf
    • https://cdn.shopify.com/s/files/1/0431/3278/0695/files/barcelona_bus_map.pdf
    • https://cdn.shopify.com/s/files/1/0430/8267/8433/files/tuxabutukazevijazepitita.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdf
    • https://cdn.shopify.com/s/files/1/0431/9900/4831/files/bujara.pdf
    • https://cdn.shopify.com/s/files/1/0435/8035/8811/files/dijul.pdf
    • https://cdn.shopify.com/s/files/1/0435/7190/4673/files/48155589652.pdf
    • https://cdn.shopify.com/s/files/1/0437/8004/7010/files/debilamatut.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_off00018459.bin
2d73bbed5eea7153b2d1ce2ee1ced51d1e9b9588f8557988aa0371f1900f4103		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18459 5056 bytes
font_01_sfnt_off000195b0.bin
5d4f9978131ecaa9562e64c1a280e88cb86b0dc30e9596f6867170a047652402		 pdf-font-stream PDF embedded font (sfnt) at offset 0x195B0 10948 bytes

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