Malicious PDF — malware analysis report

Static analysis result for SHA-256 dece3f5a78d05fd8…

MALICIOUS

PDF

56.4 KB Created: 2020-07-29 11:13:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a24be062b37cd5202da94c751105601f SHA-1: 6db2f204d2acef8cffbecdb2720c02f3af37a92a SHA-256: dece3f5a78d05fd84998db1b4dc5ba81d5da82efc3ef5afed9b449a588c230d2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Alpha male personality pdf'. The presence of a malicious redirector URL indicates an attempt to lead the user to a harmful site, likely for further exploitation or credential harvesting. The ML classifier also strongly flagged this PDF as malicious.

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/pify?keyword=alpha+male+personality+pdf
    • http://files.naturalandpermanentbodyadornment.com/uploads/1/3/1/4/131407918/dizabaxunogi.pdf
    • http://files.myregionals.com/uploads/1/3/2/3/132302998/zogaxukejakoma.pdf
    • http://files.allmybees.com/uploads/1/3/1/3/131381288/e2ef3.pdf
    • https://cdn.shopify.com/s/files/1/0428/2934/9030/files/dozopavapavad.pdf
    • https://cdn.shopify.com/s/files/1/0435/2606/2239/files/zuvivesedidumewojagulada.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0985/files/23010356978.pdf
    • https://cdn.shopify.com/s/files/1/0435/2117/9816/files/bixizakefozavawejo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4914/7803/files/ropigikusakul.pdf
    • https://cdn.shopify.com/s/files/1/0431/2724/2903/files/xujifituwijetetodiw.pdf
    • https://cdn.shopify.com/s/files/1/0439/4326/4411/files/74749124248.pdf
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/bezuxutejatenuwejukire.pdf
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/51111136780.pdf
    • https://cdn.shopify.com/s/files/1/0437/6671/0426/files/lomakupanijupo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7899/9446/files/povusedizi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2555/3815/files/87014883101.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_off00009ef2.bin
e819b80899dfc8cc9be41a902924e5ce21fb328a76d231df35ea40df7848f790		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9EF2 5160 bytes
font_01_sfnt_off0000b053.bin
a70b7e3d271890063ec4d18507f4d59b0f58a6bf5fe61ca5542cc7214438765a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB053 10532 bytes

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