Malicious PDF — malware analysis report

Static analysis result for SHA-256 d05dbdb6942112c3…

MALICIOUS

PDF

44.4 KB Created: 2020-08-22 23:28:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bf55488fde601abc36d582e2bc04e08 SHA-1: 3884f201444aeea5cb6eb9f3202e326b29d33952 SHA-256: d05dbdb6942112c384a19364ad9907fcd6a471c5d11c6c409e4eed801713e1d6
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a 'school bus accident report template'. This link, 'https://ttraff.cc/pify?keyword=school+bus+accident+report+template', is designed to lead users to potentially harmful content. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The primary malicious URL is the redirector, which is the most critical IOC.

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=school+bus+accident+report+template
    • http://monupaxot.derekdbass.com/uploads/1/3/1/4/131438044/luwimexalawe-nekovubomol.pdf
    • http://bazakuri.jennifer-levitan.com/uploads/1/3/0/8/130814058/b2520d43ab.pdf
    • http://mebedega.dixiehighcounseling.org/uploads/1/3/0/7/130740073/4089089.pdf
    • http://mezekil.blboutdoors.com/uploads/1/3/0/9/130969352/6f33b173fc.pdf
    • https://cdn.shopify.com/s/files/1/0427/8000/0422/files/suzejilewokagagu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0097/7816/files/kebabis.pdf
    • https://cdn.shopify.com/s/files/1/0438/8922/9979/files/suxuzub.pdf
    • https://cdn.shopify.com/s/files/1/0439/0486/0328/files/organismos_pluricelulares.pdf
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/fanonatopifi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/89269095253.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/97006258549.pdf
    • https://cdn.shopify.com/s/files/1/0429/9902/1731/files/betamethasone_valerate_davis.pdf
    • https://cdn.shopify.com/s/files/1/0433/7896/6686/files/95155127128.pdf
    • https://cdn.shopify.com/s/files/1/0434/5597/1492/files/70802210900.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_off00006218.bin
55528ec5e73afbdc8977ae1f74be7b6e05ae375834a8fb1f50d2437bf30b5957		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6218 5436 bytes
font_01_sfnt_off0000744c.bin
263b821f7856b06ab5a222b85772c938ea736349c9d1208042747934a093da13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x744C 10060 bytes
font_02_sfnt_off000096ab.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96AB 4324 bytes

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