Malicious PDF — malware analysis report

Static analysis result for SHA-256 477a5c78eee8133e…

MALICIOUS

PDF

49.2 KB Created: 2020-08-22 08:40:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d01856fd6d05c50b68e763cddf6f9f6 SHA-1: 3a2c962556a1f9dc32b1a7e691ff1d789912b5d8 SHA-256: 477a5c78eee8133eeee1dc610adc663a6b53528dab7063a40d1a449ec2e26dca
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This URL is embedded within the document body, disguised as a link to a PDF. The file also exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on Shopify. The primary malicious link is 'https://ttraff.ru/pify?keyword=answering+the+phone+with+your+name', which is likely intended to redirect 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.ru/pify?keyword=answering+the+phone+with+your+name
    • http://zalurejor.atthehealersnook.com/uploads/1/3/1/4/131407057/panada.pdf
    • http://rifomevok.kristopherkyle.com/uploads/1/3/2/6/132681218/varipunifigire.pdf
    • http://temaj.akadeltaomegaomega.com/uploads/1/3/1/4/131438044/d8a46.pdf
    • http://files.travelfitinc.com/uploads/1/3/2/3/132303163/zovena-sopidakexux-zunozixitalab.pdf
    • http://zebume.totalresetweightloss.com/uploads/1/3/1/8/131871921/kapesudubeb-ninowonax-mitoxuwadagewuw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdf
    • https://cdn.shopify.com/s/files/1/0433/5910/9279/files/37476715595.pdf
    • https://cdn.shopify.com/s/files/1/0430/8415/2986/files/mosekoxunoxukojorijume.pdf
    • https://cdn.shopify.com/s/files/1/0433/7411/7015/files/58971196809.pdf
    • https://cdn.shopify.com/s/files/1/0434/0813/0213/files/area_of_a_circle_sector_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/8220/2782/files/luzex.pdf
    • https://cdn.shopify.com/s/files/1/0434/2510/4028/files/brush_up_your_english_st_imam.pdf
    • https://cdn.shopify.com/s/files/1/0429/6871/1321/files/ay_c3_a7a_ay_c5_9fin_turan.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/jon_hopkins_immunity_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0429/4849/3475/files/27825322518.pdf
    • https://cdn.shopify.com/s/files/1/0434/1835/3815/files/certificate_of_employment_sample_with_salary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073ac.bin
a57f6bbaae7c31e979b6e9efa355439c268bf1a407d6953dce4a87407be84bb2
pdf-font-stream PDF embedded font (sfnt) at offset 0x73AC 5268 bytes
font_01_sfnt_off0000857c.bin
5356aa00284163297b196ea682816e3a44374be5dec5c67bd5fd3f29751339eb
pdf-font-stream PDF embedded font (sfnt) at offset 0x857C 10504 bytes
font_02_sfnt_off0000a962.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA962 4324 bytes