Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ebe5a6a6c9dd5d7…

MALICIOUS

PDF

54.6 KB Created: 2020-08-07 21:07:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1bd441ca52a7c302ac2b761ff8cba637 SHA-1: e8b842933ee8828194c7d22a932b8c71b4ffd1c2 SHA-256: 4ebe5a6a6c9dd5d75dccd7c94b427358cdc607a5c67b2505cda4de35060b733e
160 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and heuristics indicate this is an advance-fee scam, luring the user with a topic like 'agrarian reform law' to click the link. The PDF_SEO_LINK_FARM heuristic indicates a large number of links to other PDFs, likely for SEO manipulation or to distribute the scam across multiple sites. No scripts were extracted from this sample.

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=agrarian+reform+law+in+the+philippines+pdf
    • http://files.ronnieroseband.com/uploads/1/3/0/8/130813797/a7f99.pdf
    • http://files.vccsns.org/uploads/1/3/1/3/131398533/wiluzorizaziteruvi.pdf
    • http://files.randallsimonpiano.com/uploads/1/3/2/6/132680852/4278757.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tijubijevuvikupox.pdf
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/nufagumugevubedu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1713/4502/files/wikavonagajajirukesepelol.pdf
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/81758366144.pdf
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/38041876484.pdf
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/nadenep.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/77234979502.pdf
    • https://cdn.shopify.com/s/files/1/0429/8365/3527/files/learn_american_english_conversation.pdf
    • https://cdn.shopify.com/s/files/1/0431/1695/3767/files/lego_batman_movie_yify.pdf
    • https://cdn.shopify.com/s/files/1/0439/0001/0664/files/medscape_aprn_compensation_report_2020.pdf
    • https://cdn.shopify.com/s/files/1/0436/3033/0019/files/socso_caruman_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/5127/0815/files/90560046029.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_off000097f5.bin
12f813a812845ed3efc7520d5b0eac0aed77207fd86206f8347678226d5065fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x97F5 5536 bytes
font_01_sfnt_off0000aab3.bin
386b26c8ecab689595ec737d6b12dc22e02b7784dc246b35a50593c4b0da1bd6
pdf-font-stream PDF embedded font (sfnt) at offset 0xAAB3 10160 bytes