Malicious PDF — malware analysis report

Static analysis result for SHA-256 debd1feee7233885…

MALICIOUS

PDF

46.2 KB Created: 2020-09-02 21:52:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b134d2d5b33adcf145816cfbe2f63f40 SHA-1: 9818c90905d9abbe240beb46997d0025bbe7c2f0 SHA-256: debd1feee7233885e7824c1644d1c649d766e1eff7d9aed642ee8f0c15c7b97c
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, indicating a link farm. The primary malicious URL identified is https://ttraff.club/wix?keyword=parque+central+cd+juarez+informacion, which is likely used to redirect users to a malicious site. The document body contains obfuscated text and embedded URLs, further supporting the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=parque+central+cd+juarez+informacion
    • https://static.usrfiles.com/ugd/4d400c_4f105aca03c543da828413bcfed262d5.pdf
    • https://static.usrfiles.com/ugd/b8c837_f9e1d09f19614707b9afe083cfef4409.pdf
    • https://static.usrfiles.com/ugd/9cb927_1ac0b56f761b4d1c954d03281d08c467.pdf
    • https://static.usrfiles.com/ugd/913720_517c87f198d0433bbc1658bd0273f5f9.pdf
    • https://static.usrfiles.com/ugd/e3c460_6ad2fbff2a52469ca254fcb8c466e202.pdf
    • https://cdn.shopify.com/s/files/1/0431/7865/5903/files/funny_love_animated_whatsapp_status_video.pdf
    • https://cdn.shopify.com/s/files/1/0428/2449/9367/files/99266071673.pdf
    • https://cdn.shopify.com/s/files/1/0437/6566/1853/files/writing_a_successful_business_plan.pdf
    • https://cdn.shopify.com/s/files/1/0435/7704/9247/files/gekaxakatipejidilisuduxo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1488/0405/files/femoragibukunujawut.pdf
    • https://static.usrfiles.com/ugd/ea9bdf_ffd75ebedf37486ea46b366baffa06cb.pdf
    • https://static.usrfiles.com/ugd/4b874d_0fdffee67e7b4d59adff49fb7f6e2748.pdf
    • https://static.usrfiles.com/ugd/6c032c_4b75d3bd68cb4b2494f2b4740e91696b.pdf
    • https://static.usrfiles.com/ugd/158fb9_5cf1933ca2004e4f9b471b88c6a6e890.pdf
    • https://static.usrfiles.com/ugd/b8c837_1194370f7fe24c9aae7dbc812492f2fd.pdf
    • https://static.usrfiles.com/ugd/99965f_d1624d2369654464a431f4f361a987ae.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f9f.bin
9a6c740a14f35e0bce1e676801c684703499328a68864aed6f5124378cdb4b98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9F 5124 bytes
font_01_sfnt_off000070f2.bin
cf50d13c5c21d2e34fba0d9dd21119d4839fc35fdaebfe62cbacf51850cc328d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70F2 1936 bytes
font_02_sfnt_off00007a31.bin
763ae59114bc5bda995c4626be9a12233808a166fce8df67fca2f58d14b21671		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A31 10336 bytes
font_03_sfnt_off00009d16.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D16 4324 bytes

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