Malicious PDF — malware analysis report

Static analysis result for SHA-256 d99b74b9fa13fb09…

MALICIOUS

PDF

119.4 KB Created: 2020-07-31 17:36:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d03f9a0a665335a2964d7544a4850b5 SHA-1: 432c98416bc34ea41fc1af8b5d8b5de8dcbfc7f2 SHA-256: d99b74b9fa13fb09eeee679eca3c4908bac90e1654cde030bbc0c57718d6c6c3
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a reference to 'ff14 chocobo raising' and the malicious URL, suggesting a lure to entice users to click on the links. The primary function appears to be redirecting users to potentially harmful content.

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=ff14+chocobo+raising
    • http://files.heartpieces.net/uploads/1/3/1/3/131379749/3776242.pdf
    • http://files.julianneensley.com/uploads/1/3/1/4/131437438/lusajude.pdf
    • http://files.synergy-african.com/uploads/1/3/1/8/131855981/2599669.pdf
    • http://files.bluenosewoodworks.com/uploads/1/3/2/8/132815961/somokirolurujewikusi.pdf
    • http://files.aromathymebistro.com/uploads/1/3/2/7/132740482/7996566.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/bijakanevisera.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/69592443658.pdf
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/8193570615.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/89446906918.pdf
    • https://cdn.shopify.com/s/files/1/0428/3485/4051/files/70297002354.pdf
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/9879705110.pdf
    • https://cdn.shopify.com/s/files/1/0438/5187/4466/files/proyecto_de_grado_electronica_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0433/7801/6406/files/wasuxor.pdf
    • https://cdn.shopify.com/s/files/1/0430/4538/8442/files/50960423683.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0210/files/nazaruwurarifamu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8133/files/48269263431.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_off00019a60.bin
a344a8bee873974071a4ab2903fdf04e4c07aacbed4211d1d861a09bba19cb72
pdf-font-stream PDF embedded font (sfnt) at offset 0x19A60 5348 bytes
font_01_sfnt_off0001ac97.bin
50a38a248b89ef38029a613a26304427b2698d21aeafb9c27216512cf924ce7e
pdf-font-stream PDF embedded font (sfnt) at offset 0x1AC97 10524 bytes