Malicious PDF — malware analysis report

Static analysis result for SHA-256 e14c76190a796ff2…

MALICIOUS

PDF

70.9 KB Created: 2020-08-10 07:28:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 000d777c361264bab783c097b3da580a SHA-1: 32a7cd3a99729442ce4b7d0442c9f9c92b1f63e7 SHA-256: e14c76190a796ff2bed15d025247f7c078ea42cd0b88ea6a4f66ddd3d9e2d58b
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=polarized+microscope+pdf'. This URL is embedded within the document body, suggesting an attempt to trick the user into clicking it. The presence of a large number of external PDF links also indicates a link farm, likely for SEO manipulation or to distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=polarized+microscope+pdf
    • http://files.miypnstateconf.com/uploads/1/3/1/6/131606256/fozibuwera-wobixuposog-tifasuvasedop.pdf
    • http://files.bassriverchiropractic.com/uploads/1/3/1/4/131437736/maduziwopimepa.pdf
    • http://files.briona.org/uploads/1/3/1/8/131856456/4352270.pdf
    • http://files.manoliskaratarakis.website/uploads/1/3/0/8/130814124/9fb4c9cd3.pdf
    • https://cdn.shopify.com/s/files/1/0434/4571/5109/files/zajiribiveruxixut.pdf
    • https://cdn.shopify.com/s/files/1/0433/7713/1683/files/imu_cet_result_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/4043/9446/files/86247093296.pdf
    • https://cdn.shopify.com/s/files/1/0432/5762/6792/files/lokijidinujoxiduwi.pdf
    • https://cdn.shopify.com/s/files/1/0427/8393/2582/files/28738335162.pdf
    • https://cdn.shopify.com/s/files/1/0437/2630/7480/files/77026761473.pdf
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/mubakemegekopatexebofufa.pdf
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/traduire_fichier_anglais_en_francais_en_ligne.pdf
    • https://cdn.shopify.com/s/files/1/0432/7754/9726/files/8762589466.pdf
    • https://cdn.shopify.com/s/files/1/0431/3828/5734/files/sejojovozof.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/17769310166.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/rakijomonowumaketa.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_off0000bd0f.bin
f015fb48bb98bf5aa82d3a0f4f0cdd8bd6cf4cb91ee53d29432e7a881ed8ff07
pdf-font-stream PDF embedded font (sfnt) at offset 0xBD0F 5352 bytes
font_01_sfnt_off0000cf35.bin
954dbcf0caab8d036230306190c76a3753cb4662109ec4591e1b7416e601b28f
pdf-font-stream PDF embedded font (sfnt) at offset 0xCF35 13344 bytes
font_02_sfnt_off0000f9b2.bin
ae97ebdbf5cb6679ee3ae7f6f8963da9ec2437ada1f672a33085bc8cbe806833
pdf-font-stream PDF embedded font (sfnt) at offset 0xF9B2 16060 bytes