Malicious PDF — malware analysis report

Static analysis result for SHA-256 569b9f4c66da8496…

MALICIOUS

PDF

34.8 KB Created: 2020-08-26 20:26:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b53abc20e9c2a87a06b92659855c8d93 SHA-1: bbcc3c325a795d6bde4869a3b7370b01023efa83 SHA-256: 569b9f4c66da849675e771adbabed9a02cd598cd0884b6fc3c3e5c33a1866d37
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body is heavily obfuscated and appears to be generated content, likely to mask the malicious intent. The presence of numerous external links, including a redirector, suggests an attempt to lead users to malicious websites or to manipulate search engine results.

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=the+best+trendline+methods+of+alan+a
    • http://lovul.lotusranch-homes.com/uploads/1/3/1/4/131454215/savupuvesun-jorunazan-muwamanija.pdf
    • http://files.d-luxeinteriors.com/uploads/1/3/1/8/131871745/fokesiwu.pdf
    • http://files.everestsolargroup.com/uploads/1/3/2/7/132712225/6385393.pdf
    • http://dexidoro.isolahandmadeoriginals.com/uploads/1/3/0/9/130969521/4480132.pdf
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/bokojokutabikafi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/xaxifupopugifologa.pdf
    • https://cdn.shopify.com/s/files/1/0434/3329/6028/files/agitation_and_mixing.pdf
    • https://cdn.shopify.com/s/files/1/0434/9778/3458/files/45431462566.pdf
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/64481410153.pdf
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/62250943186.pdf
    • https://cdn.shopify.com/s/files/1/0428/7276/6631/files/how_to_change_to_word_apple.pdf
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/50786814725.pdf
    • https://cdn.shopify.com/s/files/1/0437/6186/0757/files/los_primos_mx_mi_bello_angel.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_off00004c35.bin
7e1e5fc736adce7439ce753f45d7981071d6991ebf1d9a4b9c23e39f2685ff7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C35 5236 bytes
font_01_sfnt_off00005dca.bin
d2bc59eb296ee990b534c071d76691bbc284b3712c9e7ff45d78cbfdda7eaab1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCA 9520 bytes

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