Malicious PDF — malware analysis report

Static analysis result for SHA-256 e347be82e4b14b0b…

MALICIOUS

PDF

43.9 KB Created: 2020-08-07 06:42:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5166f448475f93e8c98829e28891d05f SHA-1: a5f5e8346fd6361f12bc06e6bd72ad2584529157 SHA-256: e347be82e4b14b0b6990d8085587556d3be1978f96782f816dcdaff5bdf09141
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=angularjs+pdf+viewer+demo'. The presence of a visual download button lure further suggests a malicious intent to trick users into clicking through the redirector. The document body is heavily obfuscated and contains what appears to be metadata rather than user-facing content.

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.
  • 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.com/pify?keyword=angularjs+pdf+viewer+demo
    • http://files.garfielddiamondsports.org/uploads/1/3/0/7/130738676/e87d019bd7cb12d.pdf
    • http://files.cladstudioz.com/uploads/1/3/1/1/131163859/xogijobubinelibe.pdf
    • http://files.amazinggracewestport.com/uploads/1/3/2/3/132302883/04b565.pdf
    • http://files.davidfullerentertainment.com/uploads/1/3/2/8/132814343/7240146.pdf
    • http://files.smashsomethingtulsa.com/uploads/1/3/1/0/131071249/ridav.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1402562920.pdf
    • https://cdn.shopify.com/s/files/1/0428/3554/2182/files/divopisugutowufezigu.pdf
    • https://cdn.shopify.com/s/files/1/0438/6593/1936/files/tepupewutiniruragezipi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8168/6439/files/zunikisutobu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/gorebitavififunanuwi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7301/1863/files/jiximinuz.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/general_training_ielts_reading_samples_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0436/3167/3504/files/precalculus_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/9151/5809/files/jemogob.pdf
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/97617102734.pdf
    • https://cdn.shopify.com/s/files/1/0428/6673/7311/files/xigowoxofupesewon.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/3730342654.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_off00005f64.bin
825835e904156fcd75c5ce6b239e3fb401f5ab698ee733aa1937877ba46085d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F64 5580 bytes
font_01_sfnt_off0000726c.bin
dbe9070a6c14e6e1b2117137f26458672b870bafa8cb40cd3f1279ff6baf2714
pdf-font-stream PDF embedded font (sfnt) at offset 0x726C 14664 bytes