Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd1e0ea80ff07f51…

MALICIOUS

PDF

36.0 KB Created: 2020-08-17 08:55:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a0ed7f86413e3796c71849148fc70e2 SHA-1: 992f4633f845c0e6567da0b852fc672026f51ec9 SHA-256: cd1e0ea80ff07f51140e1b44e5f6c9488cd57346816a25924bcf91b9d63862ea
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with one identified as a malicious redirector. The heuristic firings indicate that this is likely an SEO link farm designed to manipulate search engine rankings or to distribute malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=pulsar+200+ns+modified+images, which is a known redirector.

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=pulsar+200+ns+modified+images
    • http://files.speysidefalconry.co.uk/uploads/1/3/2/6/132682919/5635579.pdf
    • https://cdn.shopify.com/s/files/1/0429/1641/3607/files/17104662125.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/parisibudipaxetiwori.pdf
    • https://cdn.shopify.com/s/files/1/0434/5639/7464/files/gubinax.pdf
    • https://cdn.shopify.com/s/files/1/0431/4061/2247/files/wotap.pdf
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/11181660354.pdf
    • https://cdn.shopify.com/s/files/1/0432/9000/1572/files/the_practical_kabbalah.pdf
    • https://cdn.shopify.com/s/files/1/0437/2293/2373/files/clasificacion_taxonomica_de_los_seres_vivos.pdf
    • https://cdn.shopify.com/s/files/1/0435/3989/0327/files/6897101412.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17673355306.pdf
    • https://cdn.shopify.com/s/files/1/0432/9275/4080/files/fofomowirazitifelubi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/babanalif.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7719/files/wokexu.pdf
    • https://cdn.shopify.com/s/files/1/0428/0451/0887/files/jenkins_publish_sonarqube_report.pdf
    • https://cdn.shopify.com/s/files/1/0438/8257/8088/files/6620166384.pdf
    • https://cdn.shopify.com/s/files/1/0430/5023/8101/files/86603651389.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_off0000502a.bin
a6fcb7a99d4432ec83c1480680b54ffea3e5fe7de00dcfb3588a7d5933f23610		 pdf-font-stream PDF embedded font (sfnt) at offset 0x502A 5504 bytes
font_01_sfnt_off000062be.bin
6d1b81ffbd4c2bdf6dc274749c7b82895c767060581ed73f415a7555d193b951		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62BE 9452 bytes

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