Malicious PDF — malware analysis report

Static analysis result for SHA-256 e160f1aadb5fc11e…

MALICIOUS

PDF

45.9 KB Created: 2020-08-31 23:32:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b528d59707e61716932c4638dc8f9d2d SHA-1: 410e72d2c8a2cb08f487a8063fd47b73bc19906c SHA-256: e160f1aadb5fc11e6d418ad6a72d40c82007d5113bfe31d7b66294e43c774879
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL identified is ttraff.cc, which is known for redirecting to malicious content. The document body contains obfuscated text and the malicious URL, suggesting an attempt to lure users into clicking the link. The presence of numerous links, many pointing to Shopify domains, indicates a potential SEO manipulation or a large-scale phishing attempt.

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.cc/wix?keyword=chrysocephalum+apiculatum+compact+form
    • https://cdn.shopify.com/s/files/1/0437/2817/5265/files/nefedugekedireduzo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8713/3860/files/automated_guided_vehicle_systems_ullrich.pdf
    • https://cdn.shopify.com/s/files/1/0434/4853/3142/files/35012646702.pdf
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/dobasubupozoravapa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6590/9146/files/arthur_rimbaud_illuminations.pdf
    • https://cdn.shopify.com/s/files/1/0429/2991/4012/files/d_d_scholar_s_pack.pdf
    • https://cdn.shopify.com/s/files/1/0450/4364/6614/files/exercices_corrigs_chimie_atomistique.pdf
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/xarotatifenodoponawesad.pdf
    • https://cdn.shopify.com/s/files/1/0463/1239/0821/files/betternet_vpn_free_for_windows_8._1.pdf
    • https://static.usrfiles.com/ugd/3eed2b_5d389ad50b5a4235ad2e380c37c59132.pdf
    • https://static.usrfiles.com/ugd/b8c837_bbf91c6108f14eae92785eb872c8284d.pdf
    • https://static.usrfiles.com/ugd/e42ee3_2b18b4b01c71479c85b54808993bc0b7.pdf
    • https://static.usrfiles.com/ugd/fd30ac_83aee644aa83454d90d15cadff614a4e.pdf
    • https://static.usrfiles.com/ugd/2ddd39_617313c67f814de08b4341904ca7a459.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fb4484087e64ace9d7fdfd0b98e83e3.pdf
    • https://static.usrfiles.com/ugd/6c98bc_02033bb593234322b2575a28db433b9e.pdf
    • https://static.usrfiles.com/ugd/b8c837_529e85e8eafa4c27acd767bef33f89b5.pdf
    • https://static.usrfiles.com/ugd/4b68be_f3892dfa0d5949ebb5068a43a90bbc11.pdf
    • https://static.usrfiles.com/ugd/aef5b7_63aa1a435af649349991308d208f7cb6.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_off000066da.bin
a9e146e08a769f133c4f2d1d131a3e358dee89dc88a48570d5a0f8e837be46a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66DA 5156 bytes
font_01_sfnt_off00007872.bin
1f441cabf5bc6987e9dabd80f490c27083ba048a042b3f524737b2868cefc2d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7872 10424 bytes
font_02_sfnt_off00009bee.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BEE 4324 bytes

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