Malicious PDF — malware analysis report

Static analysis result for SHA-256 50fad0deec128838…

MALICIOUS

PDF

58.4 KB Created: 2020-08-25 11:07:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 823d1c0c2744a454d11f6494b6b0afcf SHA-1: 5edace60504ce55cc03f7905648d87d21f1f2cdc SHA-256: 50fad0deec1288382a58871de5cf576aeb6958727f9b1d4b6be7a86b55199085
120 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic. This suggests the PDF is designed to trick users into visiting a malicious site, likely for further exploitation or credential harvesting.

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=ladakh+travel+guide+book
    • http://files.kathrynclark.net/uploads/1/3/1/3/131384436/noxabuwo-tevojolala-xagefawuz.pdf
    • http://files.shopinspiredbyu.com/uploads/1/3/1/4/131411024/xaferut.pdf
    • http://bovimo.lotsofbundlez.com/uploads/1/3/1/4/131483138/sodewapubavazox.pdf
    • http://pudiki.tylerdiscoverslife.com/uploads/1/3/1/4/131438873/9330534.pdf
    • https://cdn.shopify.com/s/files/1/0436/5965/7374/files/zufopugesawanaxopar.pdf
    • https://cdn.shopify.com/s/files/1/0438/9906/0376/files/4879690299.pdf
    • https://cdn.shopify.com/s/files/1/0433/5697/9351/files/geomorphology_by_savindra_singh_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/a_b_c_d_child_video.pdf
    • https://cdn.shopify.com/s/files/1/0433/0523/8688/files/binomial_theorem_probability.pdf
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/xubozuzejefumidabudosin.pdf
    • https://cdn.shopify.com/s/files/1/0435/9372/8159/files/99431084090.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vidabuvuwegorowomilamum.pdf
    • https://cdn.shopify.com/s/files/1/0436/1751/7725/files/bosquejos_de_predicas_para_jovenes.pdf
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/92168073053.pdf
    • https://cdn.shopify.com/s/files/1/0438/5954/2176/files/gvhd_treatment_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/adventure_time_canon_episodes.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_off000099c1.bin
5b4ae2ac1973527e5cd3d3b600f1af10107d39581849cf7286628dc48190be84
pdf-font-stream PDF embedded font (sfnt) at offset 0x99C1 4888 bytes
font_01_sfnt_off0000aa75.bin
038832a605754dfb293e2b7a6f2b14be89493e4bea267d1efaac92cbe58b298d
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA75 10444 bytes
font_02_sfnt_off0000ce16.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xCE16 4324 bytes