Malicious PDF — malware analysis report

Static analysis result for SHA-256 54f8f2b8ba2007a7…

MALICIOUS

PDF

46.0 KB Created: 2020-08-14 10:25:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dc081a9f18b4d5133d1176729e4e834 SHA-1: 098e982767a5c605091e551ad247ab26a5bcbd91 SHA-256: 54f8f2b8ba2007a7cc4d40ad4bd0c301ddbf27ab0958b725e63454349b04852a
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify domains, but one critical link redirects to a known malicious infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to a 'ccna v3.0 book pdf' and the malicious URL, suggesting a lure to download potentially harmful content. The presence of a malicious redirector link indicates the primary intent is to lead the user to a malicious site.

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=200-+125+ccna+v3.+0+book+pdf
    • http://files.petrichorartanddesign.com/uploads/1/3/0/9/130969499/1218430.pdf
    • http://files.cameronpoydras.com/uploads/1/3/0/7/130776812/jazetirizujegep.pdf
    • http://files.rhapsodyartbarn.com/uploads/1/3/0/7/130739239/tamabemef_laguli_bapegitelenirox_kuxilaki.pdf
    • http://files.groennfell.com/uploads/1/3/1/4/131438541/rizeki.pdf
    • https://cdn.shopify.com/s/files/1/0440/1509/1870/files/ftse_rafi_all_world_3000_index_factsheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/9114/8454/files/tuxufotok.pdf
    • https://cdn.shopify.com/s/files/1/0432/1574/9281/files/kezatowemabiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5085/9670/files/resebarepotaxinulovu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2025/4375/files/minority_report_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/bingo_numbers_1_20.pdf
    • https://cdn.shopify.com/s/files/1/0431/0797/5317/files/65974050827.pdf
    • https://cdn.shopify.com/s/files/1/0435/9821/7374/files/rojemibabemij.pdf
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/energia_biomassa.pdf
    • https://cdn.shopify.com/s/files/1/0437/6671/0426/files/58584760391.pdf
    • https://cdn.shopify.com/s/files/1/0428/0143/0695/files/29755983100.pdf
    • https://cdn.shopify.com/s/files/1/0438/1615/7344/files/gegiwogelapomamig.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/59234404553.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/90454202534.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_off00006cfa.bin
ab4ec0e44487fcbce58065dd163203f9f36fb5061bede6cadef2e18c4b5ab1e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFA 5692 bytes
font_01_sfnt_off00008078.bin
1b1d16517acc31d1df5dcceba50440e31ce6345df8b04547f239942b729aaac6
pdf-font-stream PDF embedded font (sfnt) at offset 0x8078 15928 bytes