Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d60e098c0f5a632…

MALICIOUS

PDF

49.4 KB Created: 2020-08-21 00:43:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88928db49e0fc5e37c5bd56398c7e0f8 SHA-1: 392910df6ee3be02dd23409f81ff1bf575a1bba1 SHA-256: 1d60e098c0f5a632645600f33cdc532584ba4ae603f4ad8fd047ed26f027d21f
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, disguised as an entrepreneurship development presentation. The document body, though heavily obfuscated, contains the target URL. The PDF also exhibits characteristics of a link farm, with numerous embedded links pointing to external resources, likely for SEO manipulation or to host further malicious content.

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=entrepreneurship+development+ppt
    • http://files.brightongreen.org/uploads/1/3/1/4/131406036/miforiduwafuroxa.pdf
    • http://nomif.cabinetsbycarlos.com/uploads/1/3/1/4/131406069/1655cd727d031d.pdf
    • https://cdn.shopify.com/s/files/1/0441/3403/9704/files/53633242181.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/72926913178.pdf
    • https://cdn.shopify.com/s/files/1/0429/3702/4668/files/aura_libro_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0438/4079/8885/files/abamectin_insecticide.pdf
    • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/fisdap_airway_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/7157/8007/files/3767687308.pdf
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/22419835958.pdf
    • https://cdn.shopify.com/s/files/1/0428/0628/0355/files/47821465503.pdf
    • https://cdn.shopify.com/s/files/1/0432/3131/4077/files/dizixi.pdf
    • https://cdn.shopify.com/s/files/1/0427/7754/2823/files/gpsc_exam_paper_with_answer_2018.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_off00008517.bin
b0a037a057e888b3269075e6f805c89123201fab0148ccf4346e0281b33aae75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8517 5008 bytes
font_01_sfnt_off000095f7.bin
fb168a4ef871ac55fffd90254d88842a33576f7d270ffb68ba4fe5b17044fc21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95F7 10128 bytes

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