Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef32eccd34463563…

MALICIOUS

PDF

63.5 KB Created: 2020-08-02 05:34:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ae063e25411a58b9122c3c7da97ff18 SHA-1: 6948392412b817b59488edc7937aa508cde97b8e SHA-256: ef32eccd34463563cf6273da0adbef58d7f1c97b918e0599a71cc04fe86d0ce9
150 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL that is likely intended to lure the user into clicking on it. The PDF_SEO_LINK_FARM heuristic suggests a large number of similar links are generated, likely for SEO poisoning or spamming purposes.

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=1-+99+construction+guide+rs3
    • http://files.barrabahistory.com/uploads/1/3/1/4/131437531/6619511.pdf
    • http://files.marykuhlmannantholz.com/uploads/1/3/1/4/131453645/bosalovokusidim-jazuxi-wozosevenul.pdf
    • http://files.annishealinggarden.com.au/uploads/1/3/1/0/131071137/julenelanu.pdf
    • http://files.brooklinhorticulturalsociety.com/uploads/1/3/0/9/130969220/zisuzixisasa.pdf
    • http://files.olilazarusphotography.com/uploads/1/3/1/6/131606368/3009102.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/jafaloz.pdf
    • https://cdn.shopify.com/s/files/1/0431/7007/0687/files/dinojukosilaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/1407/9143/files/15390414844.pdf
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/the_gamers_dorkness_rising.pdf
    • https://cdn.shopify.com/s/files/1/0430/5793/8581/files/98491074080.pdf
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/nizul.pdf
    • https://cdn.shopify.com/s/files/1/0440/4376/3862/files/40955019937.pdf
    • https://cdn.shopify.com/s/files/1/0428/5651/3692/files/koramuli.pdf
    • https://cdn.shopify.com/s/files/1/0433/3659/7654/files/soxubapisafejipewok.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/dusuwixosaxefidirusowivux.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0718/files/tuzekopakokirozebigari.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_off0000bb3f.bin
aa3f346dda1e6d1d39d0d7d96eaa0943593cb672d9b69530a87943281338942e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB3F 5176 bytes
font_01_sfnt_off0000ccf3.bin
b25f95e88f155a5dd1584a4f267970a9843417a03e525a642f2b9021d11bb28b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF3 10460 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.