Malicious PDF — malware analysis report

Static analysis result for SHA-256 f35fafee0400b3f7…

MALICIOUS

PDF

67.4 KB Created: 2020-08-21 15:44:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 053622f73b99deacaeca9d9f10ac1bad SHA-1: bc31d607a3043570d1801424385a5fd28bd52371 SHA-256: f35fafee0400b3f7f9e95c988f7420511f3e14a666fa6c4e2f8abd868461e771
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to a "rental agreement cancellation template" and includes a critical heuristic firing for a malicious redirector link. The primary malicious URL identified is https://ttraff.ru/pify?keyword=rental+agreement+cancellation+template. Additionally, the PDF hosts a large number of external links, many pointing to shopify.com, suggesting a link farm or SEO manipulation tactic to distribute malicious content. The document body, though heavily obfuscated, contains the malicious URL.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=rental+agreement+cancellation+template
    • http://files.russellraysilva.com/uploads/1/3/0/7/130738970/2317154.pdf
    • http://files.kenmaremindfulnessandyoga.com/uploads/1/3/1/4/131438692/rojoresil.pdf
    • http://zuwezazoz.newbornga.com/uploads/1/3/0/7/130776791/rosesomiwival.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/bukesonudeganigidibel.pdf
    • https://cdn.shopify.com/s/files/1/0439/6069/6990/files/vonefazenokebivuxituke.pdf
    • https://cdn.shopify.com/s/files/1/0429/9164/8929/files/zekuzerevomozaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/6440/9764/files/56063339380.pdf
    • https://cdn.shopify.com/s/files/1/0428/5209/0022/files/visov.pdf
    • https://cdn.shopify.com/s/files/1/0430/4220/9945/files/zirefaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/1279/2225/files/hunger_games_1_english.pdf
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/70986193734.pdf
    • https://cdn.shopify.com/s/files/1/0434/4378/1792/files/best_free_reader_windows_10_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7746/files/geramedowaxefulivutonuk.pdf
    • https://cdn.shopify.com/s/files/1/0436/4389/5958/files/31524184690.pdf
    • https://cdn.shopify.com/s/files/1/0440/5864/0549/files/54801600851.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_off0000c2ff.bin
b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
pdf-font-stream PDF embedded font (sfnt) at offset 0xC2FF 2828 bytes
font_01_sfnt_off0000ccfa.bin
89ca3995557d19c3323d18daa0fa65638c71294487421981b92821046bce6aac
pdf-font-stream PDF embedded font (sfnt) at offset 0xCCFA 5080 bytes
font_02_sfnt_off0000de2a.bin
698502776f64cc6f7c1d2034204bd7539f22c57408c6dd539c453572bcfd95cc
pdf-font-stream PDF embedded font (sfnt) at offset 0xDE2A 9872 bytes