Malicious PDF — malware analysis report

Static analysis result for SHA-256 b03808ed776d998c…

MALICIOUS

PDF

40.6 KB Created: 2020-08-19 12:12:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ccddd4142936b54bad2f4c50f3d8ed4 SHA-1: 423418fa3db7f658733cdea505baef136a6ed9bb SHA-256: b03808ed776d998c04b4dc916904f5f22c82a625ed62b3b2d918b96a862fb7af
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'free html responsive table templates' and the malicious URL. This suggests a lure to a site that likely hosts further malicious content or phishing attempts. The presence of a link farm heuristic further supports the malicious intent of distributing links.

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=free+html+responsive+table+templates
    • http://files.greater-faith.org/uploads/1/3/0/7/130738799/3a9df545145d3.pdf
    • http://files.happyestsparrowblog.com/uploads/1/3/0/9/130969621/1552308.pdf
    • http://files.bullbearkidsbooks.com/uploads/1/3/0/7/130776257/desub.pdf
    • http://kojinor.antonianhonors.com/uploads/1/3/1/3/131383434/490941.pdf
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/11354908166.pdf
    • https://cdn.shopify.com/s/files/1/0437/2027/8171/files/37660850083.pdf
    • https://cdn.shopify.com/s/files/1/0429/2696/4895/files/4348936149.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/moravagine_blaise_cendrars.pdf
    • https://cdn.shopify.com/s/files/1/0438/4253/5574/files/kakefere.pdf
    • https://cdn.shopify.com/s/files/1/0427/9389/4044/files/kujedapisukizi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/80782971150.pdf
    • https://cdn.shopify.com/s/files/1/0438/5862/4672/files/6435871362.pdf
    • https://cdn.shopify.com/s/files/1/0434/7500/9696/files/emotional_intelligence_in_the_workplace.pdf
    • https://cdn.shopify.com/s/files/1/0432/9675/1771/files/63669449532.pdf
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/24934645698.pdf
    • https://cdn.shopify.com/s/files/1/0429/2873/4367/files/82624349826.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_off00006183.bin
0d8a62632d516bf303567f4b4edf9746f6b28eeede5c82729b7c4b98e6a68a30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6183 5212 bytes
font_01_sfnt_off00007317.bin
7f899482302b8f9182a695aaff95a94de30a0d673d9076f0b77c1f15383185df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7317 10052 bytes

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