Malicious PDF — malware analysis report

Static analysis result for SHA-256 b67341aa53572ec4…

MALICIOUS

PDF

45.1 KB Created: 2020-08-14 20:45:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a24f5a79b689a5f9fd778fbbe196f3b1 SHA-1: 51b3aeecec3ceb03b024afcb0718c5214c7da470 SHA-256: b67341aa53572ec41aa108ecc6aa78577e89798da29f95bdd746d898cb94d797
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This redirector is used to obscure the final destination, likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=videoder+app+install++iphone', suggesting a lure related to app installation. The ML classifier also strongly flagged this PDF as malicious.

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.com/pify?keyword=videoder+app+install++iphone
    • http://files.michimathias.com/uploads/1/3/0/9/130969446/vobebiwarofab.pdf
    • http://jukurikis.saroswave.com/uploads/1/3/1/3/131378814/makavusasek.pdf
    • http://files.challengingsustainabledevelopment.org/uploads/1/3/0/7/130775707/7663611.pdf
    • https://cdn.shopify.com/s/files/1/0435/5375/1189/files/74375678904.pdf
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/8786409371.pdf
    • https://cdn.shopify.com/s/files/1/0439/5279/9902/files/attributes_of_god_a_w_tozer.pdf
    • https://cdn.shopify.com/s/files/1/0431/4791/9522/files/wodekolezabewemizo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95909873105.pdf
    • https://cdn.shopify.com/s/files/1/0440/5955/8053/files/almirante_byrd_libro.pdf
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/87364220970.pdf
    • https://cdn.shopify.com/s/files/1/0437/1854/1480/files/67662459753.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9397/files/19485346103.pdf
    • https://cdn.shopify.com/s/files/1/0434/6888/2072/files/zakixiguxutodabemodixof.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_off0000666d.bin
480077621eb739c582e92690a9726f35b07d493bff319cb52bd70b2a390ab43f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x666D 4800 bytes
font_01_sfnt_off000076a2.bin
d0aa3440d0586c5b05d88144e35170e82c802223b3736d81c4b5da0f318a3272		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76A2 10284 bytes
font_02_sfnt_off000099e0.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99E0 4324 bytes

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