Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a9389928da3172…

MALICIOUS

PDF

36.7 KB Created: 2020-08-23 05:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9900ef9050f5c35b873560d090b8cb64 SHA-1: 0175a117769277eaea467562c4f6c2ec29860e0c SHA-256: e6a9389928da3172fea8235404f6efb7bf498fc52e99f76eb98e54142887ea0e
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to 'ttraff.com', which is known malicious infrastructure. The document body and embedded links suggest a lure for a 'betking app apk', likely a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, limiting the analysis of direct execution behavior.

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.com/pify?keyword=betking+app++apk
    • http://puvas.oaregion1.org/uploads/1/3/1/4/131405927/276223.pdf
    • http://files.resonancehealing.com/uploads/1/3/2/7/132710780/magumamomosiloz-laporoxefazatuk-fefomezusog-birigu.pdf
    • http://files.yorktown164.org/uploads/1/3/2/7/132740693/41f77c795.pdf
    • http://garile.jaynejaskolski.com/uploads/1/3/0/7/130776760/nujujinat_piwikekorimetu_befubisenotami_gobizef.pdf
    • http://files.manasseroproperties.com/uploads/1/3/1/4/131454172/xunirutewamax.pdf
    • https://cdn.shopify.com/s/files/1/0434/5567/6568/files/69885410408.pdf
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/beroriwoveligu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/xozokili.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdf
    • https://cdn.shopify.com/s/files/1/0434/8307/0630/files/cite_video_mla_format.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/basic_civil_engineering_bhavikatti.pdf
    • https://cdn.shopify.com/s/files/1/0437/7142/9015/files/beast_of_burden_tab.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/algebra_2_readiness_test.pdf
    • https://cdn.shopify.com/s/files/1/0440/6103/2598/files/60493248966.pdf
    • https://cdn.shopify.com/s/files/1/0433/9102/5306/files/xozajugikoxewesab.pdf
    • https://cdn.shopify.com/s/files/1/0430/6219/8425/files/mozugetozabajos.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_off00005334.bin
c3b8ab6c44ec8ab5f38a5f1c80d421bf3254b4c3945de04d22d5f0a076cfd5e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5334 4796 bytes
font_01_sfnt_off000063a0.bin
b92ad8fcd127ce02d0eee9ba860816637a1c8fc40007b44774daa1caab1de9a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63A0 10120 bytes

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