Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f97f1a63ed97013…

MALICIOUS

PDF

43.6 KB Created: 2020-08-12 16:53:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 420d7a6c49065a24370047f3cfdc2049 SHA-1: 98f73981f3841d45a5d0fd7473c4de823edd3155 SHA-256: 3f97f1a63ed970135dc8b00b505a4d628c7deff490aafea905ab92292b04cb8b
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious link, https://ttraff.cc/pify?keyword=the+pyramid+principle+barbara+minto+pdf, is designed to lure users into clicking through to potentially harmful content. The document body itself is heavily obfuscated but contains references to the malicious URL, indicating a social engineering attempt to drive traffic to malicious infrastructure.

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=the+pyramid+principle+barbara+minto+pdf
    • http://files.dmillsphotography.com/uploads/1/3/1/4/131454012/150016.pdf
    • http://turusebil.snowyoming.org/uploads/1/3/0/9/130969060/xosumasogotobo_jolep_mawoluf.pdf
    • http://files.kathyshealthyliving.com/uploads/1/3/2/6/132696029/9279785.pdf
    • http://lituxex.newhavencob.net/uploads/1/3/1/4/131407148/zamixozominuwutufu.pdf
    • http://files.eye-of-iris.com/uploads/1/3/1/3/131384300/d8410ca9487.pdf
    • https://cdn.shopify.com/s/files/1/0437/9872/4769/files/xafoso.pdf
    • https://cdn.shopify.com/s/files/1/0432/1184/9890/files/19967731390.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/nodaz.pdf
    • https://cdn.shopify.com/s/files/1/0437/5294/7863/files/kinutumawiroderupukawi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1712/6567/files/dijevibulopugamugolumur.pdf
    • https://cdn.shopify.com/s/files/1/0435/0862/9663/files/pdf_split_and_merge_software_for_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0428/1729/0407/files/furaramotuguxesaf.pdf
    • https://cdn.shopify.com/s/files/1/0439/8641/9870/files/zoselekijijaloro.pdf
    • https://cdn.shopify.com/s/files/1/0433/2548/9305/files/28609987859.pdf
    • https://cdn.shopify.com/s/files/1/0434/1750/1852/files/emotional_intelligence_questionnaire_for_teachers.pdf
    • https://cdn.shopify.com/s/files/1/0436/2466/1154/files/carnatic_music_books_free_download.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_off00006b54.bin
33d53ba24969119658b732a38449389a7a16a2372dfc825beea85fa34bc8f7dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B54 5408 bytes
font_01_sfnt_off00007d8b.bin
fc40719bf98f1e97dac4d5fdc529bfb39c84a75ae527472939a97e4ba094e52d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D8B 10348 bytes

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