Malicious PDF — malware analysis report

Static analysis result for SHA-256 b57213968280a86b…

MALICIOUS

PDF

44.2 KB Created: 2020-08-17 00:44:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ce22f7fdb570ef521b6de6a99187eb4 SHA-1: 51920014f2700ea2c31f15d0e8826cfa01475c58 SHA-256: b57213968280a86b943145c56cee76ab608a893d1ed50447ced6b02a4aa0f3d8
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary heuristic indicates that the PDF links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the same as the one identified by the heuristic. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution.

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.ru/pify?keyword=jaspersoft+reporting+tool+tutorial
    • http://files.paulshishkoffjr.com/uploads/1/3/0/7/130775522/sepenoroxep_vowibotezi_notuboril.pdf
    • http://files.themagic-box.com/uploads/1/3/0/9/130969238/4716199.pdf
    • http://files.geoffleavenworth.com/uploads/1/3/2/7/132710628/1371689.pdf
    • https://cdn.shopify.com/s/files/1/0436/0398/4547/files/56954109215.pdf
    • https://cdn.shopify.com/s/files/1/0432/2636/6111/files/30915373903.pdf
    • https://cdn.shopify.com/s/files/1/0428/9301/7247/files/barorreceptores_y_quimiorreceptores.pdf
    • https://cdn.shopify.com/s/files/1/0431/9186/1410/files/11087598830.pdf
    • https://cdn.shopify.com/s/files/1/0428/7198/0198/files/41573281063.pdf
    • https://cdn.shopify.com/s/files/1/0432/3577/0535/files/online_converter_to_excel_file_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/nufizudirebu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3204/1889/files/minecraft_launcher_pc_versi_terbaru.pdf
    • https://cdn.shopify.com/s/files/1/0437/4216/7194/files/gugafiluzofebevasejafim.pdf
    • https://cdn.shopify.com/s/files/1/0435/7675/4344/files/72385627085.pdf
    • https://cdn.shopify.com/s/files/1/0431/1095/7210/files/tilokelewurepevasalanavab.pdf
    • https://cdn.shopify.com/s/files/1/0436/6984/8217/files/core_strength_exercises_for_beginners.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_off00006f16.bin
d2dd16d9d523aa50b820979eecd9d99bc54c8b32006eec7c9c830f407d0fd063		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F16 5056 bytes
font_01_sfnt_off0000805a.bin
a47152519cf62fd39f5384aa50fc2d66897fd84eead28c4e7494dc59a4d67891		 pdf-font-stream PDF embedded font (sfnt) at offset 0x805A 10432 bytes

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