Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c5a59b44bae5591…

MALICIOUS

PDF

44.1 KB Created: 2020-07-31 15:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a123bd0830ba81b07dcd9e67a07433c0 SHA-1: a2290bdb9978e7c0c656a3988050cac2130ddb68 SHA-256: 1c5a59b44bae55911ae002ef6148af0f7e41c57bf79b2e3f5403202be1110559
150 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link redirects to 'ttraff.ru', a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Google music library', likely a lure. The presence of a malicious redirector and a link farm suggests an attempt to drive traffic to malicious sites, potentially for phishing or malware distribution.

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.ru/pify?keyword=google+music+library
    • http://files.synodcanada.com/uploads/1/3/0/9/130969751/2bd4828ca50215.pdf
    • http://files.unfiltered-anastasia.com/uploads/1/3/1/4/131453633/6563354.pdf
    • http://files.oocitest.com/uploads/1/3/1/1/131164202/loxoluvetemorafofumo.pdf
    • https://cdn.shopif
    • https://cdn.shopify.com/s/files/1/0435/6525/2771/files/pezovetebewuzugavufafe.pdf
    • https://cdn.shopify.com/s/files/1/0432/3514/7933/files/vipogofinelisorenakewogip.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/34665470294.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/lojimutu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9252/3675/files/lipitizanutufegase.pdf
    • https://cdn.shopify.com/s/files/1/0430/5128/6690/files/welubugafidela.pdf
    • https://cdn.shopify.com/s/files/1/0437/2057/3080/files/93948718476.pdf
    • https://cdn.shopify.com/s/files/1/0432/4284/8418/files/5341191648.pdf
    • https://cdn.shopify.com/s/files/1/0428/4825/6156/files/zugebupemivumefikotiguwo.pdf
    • https://cdn.shopify.com/s/files/1/0432/9776/7592/files/31470103917.pdf
    • https://cdn.shopify.com/s/files/1/0432/5598/8374/files/satitijekesajof.pdf
    • https://cdn.shopify.com/s/files/1/0433/9105/8070/files/35314137892.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_off00007024.bin
8a094755624db8e039eb6cb806ca5814ac4fba24b4c89bf38bc86d5dbe3ac546		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7024 5088 bytes
font_01_sfnt_off0000817e.bin
98ec12b158baf9d87ebc8720306ce8d2e510e486ed457ed14798be2ab78e3268		 pdf-font-stream PDF embedded font (sfnt) at offset 0x817E 9912 bytes

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