Malicious PDF — malware analysis report

Static analysis result for SHA-256 f98af9ec01a6470c…

MALICIOUS

PDF

46.9 KB Created: 2020-08-31 07:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2b86409005339c60b6af6d56f72b400 SHA-1: e387f0ff5f5db8bdc8a740ecaeb0301fbbf1fd85 SHA-256: f98af9ec01a6470cd6cfddba33fb690320f8c67f1627199019d14bfd270a76a5
210 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.club, which is likely part of a phishing campaign. The document also exhibits characteristics of a credential harvesting lure, specifically mentioning password protection and MFA prompts. The presence of a download button further supports the phishing pretext. The embedded URLs and the document's structure suggest a social engineering attack aimed at tricking users into revealing sensitive information.

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.club/wix?keyword=ukulele+songbook+pdf+2018
    • https://static.usrfiles.com/ugd/ca32a8_7681c9dbd98b4fd7804835dbdae8313e.pdf
    • https://static.usrfiles.com/ugd/4cf28d_7b6cbc918af04cf8bbb47e4661e15cc8.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bfb702965b1477b80a3483ce8996ab9.pdf
    • https://static.usrfiles.com/ugd/f459ea_dd49f9e818e542ddb3b60d9b8d39e06a.pdf
    • https://cdn.shopify.com/s/files/1/0437/0019/1400/files/fusionner_plusieurs_document.pdf
    • https://cdn.shopify.com/s/files/1/0440/7666/2949/files/6542724990.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5744/files/41091129343.pdf
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/xakuwowotaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/3391/0681/files/ilpa_standard_fee_template.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7962/files/35451484734.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_off00006ae2.bin
ef17926e71c450146cd34c47f5ac059fbf623cac897baae923a8771e81d859ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE2 5372 bytes
font_01_sfnt_off00007d3b.bin
c43f867395011142706b4d205e7041e164d601d70abf1e2e6cb7f816bd3d3fc8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3B 10372 bytes
font_02_sfnt_off0000a0b8.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0B8 4324 bytes