Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6058442cc39f3d0…

MALICIOUS

PDF

43.0 KB Created: 2020-08-21 16:23:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4339853ef1722fda8998df21dede7e25 SHA-1: e07adc625160337a8eb4c1560bcea6f6a122c84b SHA-256: f6058442cc39f3d08e8226165464af9d0cead69b5002565979198140e3d22e75
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or redirection attempt. The document body mentions 'Hp tet answer key 2019', suggesting a lure to trick users into clicking the malicious link. The primary malicious IOC is the ttraff.cc redirector, which likely leads to 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.cc/pify?keyword=hp+tet+answer+key+2019
    • http://zuwovej.marinelifeproductions.com/uploads/1/3/0/7/130738714/e4eacce4.pdf
    • http://tepof.cradioworld.com/uploads/1/3/0/7/130740082/pafulopasanone-zivefezulisoje-babopatupum-vizibazopasuje.pdf
    • http://files.danielshar.com/uploads/1/3/1/4/131453216/xubopikaje.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34530012154.pdf
    • https://cdn.shopify.com/s/files/1/0428/9524/5475/files/jigavinufatit.pdf
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/89288028467.pdf
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/6823963210.pdf
    • https://cdn.shopify.com/s/files/1/0434/9149/1990/files/levixajitexafuragem.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8072/files/33579247421.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/79207744782.pdf
    • https://cdn.shopify.com/s/files/1/0437/4049/6033/files/appointment_request_letter_sample.pdf
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/15534312789.pdf
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/97747460982.pdf
    • https://cdn.shopify.com/s/files/1/0434/8634/7414/files/46063995805.pdf
    • https://cdn.shopify.com/s/files/1/0435/0253/4822/files/narasimham_committee_report_1991.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_off00006958.bin
cd01d0e4d9f31f4b5c88722f066df0a51e24f8c7724aa4bd067fc3271655637f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6958 5480 bytes
font_01_sfnt_off00007c1b.bin
000d2cfa52287523024471d5139592d3c4d581f8ba68f2f63fefae42ab16fa02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1B 10340 bytes

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