Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e424d59401df790…

MALICIOUS

PDF

55.5 KB Created: 2020-08-01 20:49:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bbb5ecd0f92611e65f640ced9effb7d SHA-1: 5006d5b6e380470edc4168d03078efe2c7865250 SHA-256: 9e424d59401df790aad03242a1b2b7a1245ad35684ceb33eb5139117399b0832
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a link farm, with the primary redirector pointing to a URL associated with malicious activity. The document body, though heavily obfuscated, contains the same URL and keywords suggesting a lure to potentially malicious content. 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.ru/pify?keyword=sega+saturn+isos
    • http://files.store.easy-editor.com/uploads/1/3/1/3/131384771/6195886.pdf
    • http://files.pixelinedesign.com/uploads/1/3/0/9/130969080/f9109239921.pdf
    • http://files.mindfullifefocuscommunity.com/uploads/1/3/0/7/130740112/teluritasezo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9400/7191/files/fake_card_number.pdf
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/86790221527.pdf
    • https://cdn.shopify.com/s/files/1/0428/3593/5398/files/64029634825.pdf
    • https://cdn.shopify.com/s/files/1/0429/9931/6639/files/kelakivipate.pdf
    • https://cdn.shopify.com/s/files/1/0428/1883/0492/files/nemosim.pdf
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/72163416158.pdf
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/nirum.pdf
    • https://cdn.shopify.com/s/files/1/0434/6858/7174/files/fetomuvanojani.pdf
    • https://cdn.shopify.com/s/files/1/0437/6241/7825/files/36897323240.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/rizamajinagupupo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/92205450756.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_off00008dd9.bin
5c168d43b8e2e722b7aabbaae7f859b61dcc8f2e9a0e2161ea987794df22808b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD9 4924 bytes
font_01_sfnt_off00009ea6.bin
d9119b7607bb146bacc545710f027860a2f2942f0cc306fbd462a32a4c9fb6a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9EA6 15748 bytes

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