Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fc43e993fb386eb…

MALICIOUS

PDF

42.3 KB Created: 2020-08-09 07:54:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 33e7a0343d9569901cc8bfbe41c56b6d SHA-1: 569a234bffcfe3d70174071da80a1e9804d14bda SHA-256: 2fc43e993fb386ebe9256c605e1ad456f3af467b3e839ceccee8515d41a5ed8d
140 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains text that, combined with the 'SE_CALLBACK_LURE' heuristic, suggests a phishing or scam pretext. The primary malicious link, 'https://ttraff.cc/pify?keyword=dell+poweredge+r740+datasheet+pdf', is designed to redirect the user to a potentially harmful destination. The presence of a large number of external links, many hosted on Shopify, indicates a link farm strategy.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=dell+poweredge+r740+datasheet+pdf
    • http://files.spiritualgypsysoul.com/uploads/1/3/1/4/131407530/zawila_nesuk_lukarenafabaz_waponupowezaw.pdf
    • http://files.doughfordough.com/uploads/1/3/1/3/131379443/wudanixoluxudaboxiso.pdf
    • http://files.learning4development.org/uploads/1/3/0/7/130775588/xekedutozimatevute.pdf
    • https://cdn.shopify.com/s/files/1/0433/9371/2286/files/xetali.pdf
    • https://cdn.shopify.com/s/files/1/0441/0490/8952/files/free_gba_roms.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75320426607.pdf
    • https://cdn.shopify.com/s/files/1/0438/2742/9533/files/scepticisme_philosophie.pdf
    • https://cdn.shopify.com/s/files/1/0433/2886/4409/files/fizevonizitej.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2445/files/49176445466.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4503/files/toraxoraf.pdf
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/xizimukeminuvu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/jitivolitidizowemisorubo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8576/5535/files/97416933378.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_off000066c7.bin
c21cef21bc9881f1629afef1889b5b5958d5965aca989eb9aefde723915b6f50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66C7 5704 bytes
font_01_sfnt_off00007a55.bin
61bd903d34d0be39234169d47d8b4f52424a11f55fd57b093b0f2b3ff7387252		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A55 9920 bytes

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