Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ec6217e8a080e76…

MALICIOUS

PDF

37.4 KB Created: 2020-08-25 20:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a4912ccda13a755ce646da7a6939c024 SHA-1: cddef59bfb9be2e60157fcf7b97b19f484e792b0 SHA-256: 7ec6217e8a080e7622efc50410819dba6b45662b927764c47e75285a0e8da279
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a link farm designed to appear as legitimate content, such as song sheets or software downloads, but ultimately redirects to a malicious URL. The primary malicious URL identified is https://ttraff.cc/pify?keyword=alicia+keys+mp3+download, which is a known redirector. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=alicia+keys+mp3+download
    • http://kisemim.mission-ready.org/uploads/1/3/1/4/131438641/7391553.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jisabisagubimebusogapasof.pdf
    • https://cdn.shopify.com/s/files/1/0439/7613/0718/files/god_of_wonders_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wajomuxufukurojudi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/75052208957.pdf
    • https://cdn.shopify.com/s/files/1/0432/9983/1966/files/frame_relay_protocol.pdf
    • https://cdn.shopify.com/s/files/1/0462/7261/0464/files/new_country_songs_2019.pdf
    • https://cdn.shopify.com/s/files/1/0428/9570/4227/files/votijuboxozoruwokizusaser.pdf
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/bailey_and_love_drive.pdf
    • https://cdn.shopify.com/s/files/1/0433/8748/6358/files/tratamiento_para_balanitis_en_nios.pdf
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/wovilevinufejunude.pdf
    • https://cdn.shopify.com/s/files/1/0431/5761/8850/files/gaminedaku.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_off00004997.bin
27b155807b0177439e5d74b6b02426e75edfafc64fece5eb6b78a5dfecda5ee8
pdf-font-stream PDF embedded font (sfnt) at offset 0x4997 5532 bytes
font_01_sfnt_off00005c6f.bin
c038353ce0fda5b951142b0d159a11e24c191497ac642881148e78b0f366ad64
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6F 13528 bytes