Malicious PDF — malware analysis report

Static analysis result for SHA-256 242adea5906aac1c…

MALICIOUS

PDF

44.4 KB Created: 2020-08-07 09:00:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ee65d862ed37c972f31eba819879905 SHA-1: b400a6b72a0e644772003f0b0468e3887b29a0ac SHA-256: 242adea5906aac1cd2dbfa73afb32cca3ef1e383576c805c8012ef3207375eb1
120 Risk Score

Malware Insights

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

The PDF document contains numerous external links, with one critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=bodybuilder+workout+pdf'. The document body itself is heavily obfuscated but appears to contain the same lure text and URLs. This suggests the primary purpose is to redirect the user to malicious content, likely for phishing or malware distribution.

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=bodybuilder+workout+pdf
    • http://files.antioch-jubilee.net/uploads/1/3/1/6/131606368/nukofuvi_rawedazaf_pewewomipi.pdf
    • http://files.erinmillermassage.com.au/uploads/1/3/0/8/130874676/05385a0d0d52d5f.pdf
    • http://kerizati.lenreed.com/uploads/1/3/1/0/131070374/rurezulajeserivoriw.pdf
    • http://tidikulu.tristenmurray.com.au/uploads/1/3/0/8/130874330/3310704.pdf
    • http://files.huntsvilleschoolofkarate.com/uploads/1/3/1/3/131382797/vexamozenavitam_fuduka_lifileni_fijidifevuvev.pdf
    • https://cdn.shopify.com/s/files/1/0428/8482/5247/files/75197291855.pdf
    • https://cdn.shopify.com/s/files/1/0437/6199/1841/files/error_assignment_to_expression_with_array_type.pdf
    • https://cdn.shopify.com/s/files/1/0429/4970/5881/files/44254957353.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bizisumexu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3685/1874/files/sezazelafikido.pdf
    • https://cdn.shopify.com/s/files/1/0429/8748/7395/files/metamezagonirig.pdf
    • https://cdn.shopify.com/s/files/1/0437/2342/3912/files/nupitetowegexatefigobexe.pdf
    • https://cdn.shopify.com/s/files/1/0432/9776/7592/files/31470103917.pdf
    • https://cdn.shopify.com/s/files/1/0436/3878/4158/files/2006_ford_f150_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3861/3399/files/1650453945.pdf
    • https://cdn.shopify.com/s/files/1/0434/0488/6166/files/divazoliwokidimawu.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_off000070ea.bin
346a4d291c5f8c2fd51f7c3d77a4718d943c0f219cef938b2430c8514bbcdd35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70EA 5092 bytes
font_01_sfnt_off00008263.bin
7a9675897fcaac6ba12da9495148d2183d2a3303e4e132490088ef7a8cec43c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8263 10072 bytes

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