Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4bb938c2aa56634…

MALICIOUS

PDF

43.3 KB Created: 2020-08-03 08:28:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66cb71eb085a7587f74229110d29b2e6 SHA-1: 9b06df32460e4f864e48f7413217611f8b98723b SHA-256: e4bb938c2aa56634ff3211c4494ea13155195adbbf1c8952847138a909cde3c3
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link https://ttraff.cc/pify?keyword=amadeus+electric+quartet is associated with known malicious infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further suggests that the document is designed to host a large number of links, likely to distribute malicious content or conduct phishing attacks. No scripts were extracted from this sample.

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.cc/pify?keyword=amadeus+electric+quartet
    • http://files.rootedaltarministries.org/uploads/1/3/2/7/132741339/wojetituzu.pdf
    • http://files.thehearttoserve.org/uploads/1/3/1/3/131384583/tufapapuxe.pdf
    • http://files.scoilsantain.com/uploads/1/3/1/8/131857565/bexejibajumege.pdf
    • http://files.gradient.services/uploads/1/3/2/6/132681325/3782547.pdf
    • http://files.heissrealty.com/uploads/1/3/1/4/131437087/mulivadived_numovegav.pdf
    • https://cdn.shopify.com/s/files/1/0431/7121/7565/files/45885417321.pdf
    • https://cdn.shopify.com/s/files/1/0436/2433/3472/files/mario_golf_advance_tour_rom.pdf
    • https://cdn.shopify.com/s/files/1/0430/5282/6777/files/78896173994.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/rurajemajodosup.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/kixuwanatediwilanuzulot.pdf
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/65216315328.pdf
    • https://cdn.shopify.com/s/files/1/0430/4768/2201/files/terodosim.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/436600246.pdf
    • https://cdn.shopify.com/s/files/1/0430/5184/3737/files/folituvugovuvowi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sikotifukiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/9627/6128/files/13166812028.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_off00006585.bin
ef6b6e61f649458297d1cd8cf70740eaff88b571d2853bfcdbf86fd35574e7a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6585 5200 bytes
font_01_sfnt_off00007713.bin
56a93baee85764a533800b7a7f415b2b2c3706f10aeddefda43c92d25c09db7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7713 13124 bytes

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