Malicious PDF — malware analysis report

Static analysis result for SHA-256 2da717c467019c5a…

MALICIOUS

PDF

54.4 KB Created: 2020-08-06 02:41:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d510762c6db607770cea3d8ee1e1c02 SHA-1: 25c7b9981949241bbd183dd3c8b06cca9ac67703 SHA-256: 2da717c467019c5aeb8794d9dbc3a6075171371afac69614a4efaf85ddaf15f0
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying it as a PDF link farm. One of the primary links, 'https://ttraff.com/pify?keyword=building+self+esteem+activities+pdf', appears to be a redirector. The document body, though heavily obfuscated, also contains this URL and other links pointing to Shopify domains, suggesting a coordinated effort to distribute content or redirect users. The presence of a malicious redirector link and the sheer volume of outbound links indicate a likely attempt to manipulate search engine results or lure users to malicious sites.

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.com/pify?keyword=building+self+esteem+activities+pdf
    • http://files.sonsetministries.com/uploads/1/3/0/9/130968947/818455ce5d4f.pdf
    • http://files.shanghaitranslator-businessinterpreter-personaltourguide.com/uploads/1/3/1/1/131164393/cad7bdc86e4c9.pdf
    • http://files.livinggodsmission.com/uploads/1/3/0/8/130874413/femobupowufebekoluta.pdf
    • http://files.zionbaptistchurchsbc.org/uploads/1/3/2/8/132814355/88472.pdf
    • https://cdn.shopify.com/s/files/1/0440/9743/7848/files/weduxasuzifapet.pdf
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/70677099518.pdf
    • https://cdn.shopify.com/s/files/1/0432/3649/1431/files/absceso_amigdalino_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/66405135533.pdf
    • https://cdn.shopify.com/s/files/1/0431/3242/0264/files/nafajovitabukiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/3411/5233/files/zeduwajawat.pdf
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/84387520350.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/bebikatimed.pdf
    • https://cdn.shopify.com/s/files/1/0434/1320/9246/files/zepinemoneselopuzeno.pdf
    • https://cdn.shopify.com/s/files/1/0437/6369/5770/files/bolted_connection_design.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_off000096c7.bin
011c2500ae8452763f7fbe5bf5035e8e0af53c124455d64c8be253977a83f16c
pdf-font-stream PDF embedded font (sfnt) at offset 0x96C7 5488 bytes
font_01_sfnt_off0000a977.bin
70de64916bff7e5eadee7eb32c7d71dad1f805c277a27d65caa6dc6c4407d218
pdf-font-stream PDF embedded font (sfnt) at offset 0xA977 10252 bytes