Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d3bb8f620976aa4…

MALICIOUS

PDF

39.4 KB Created: 2020-08-20 14:04:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97c3bb1bdc7c319fe489db59f1529241 SHA-1: 48b6d5015271f426ac455dce7f8e2f9456488ab4 SHA-256: 1d3bb8f620976aa487547d4e5bac56452c02ca4375289763371868c5723b6250
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a tutorial. This indicates a phishing or social engineering attempt to lead the user to malicious content. The document body, though heavily obfuscated, contains the same URL and references to other PDFs hosted on Shopify, likely part of a link farm to improve search engine ranking for 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=labview+scada+tutorial+pdf
    • http://files.tlcsupportservices.org/uploads/1/3/1/4/131437919/623035c45fe.pdf
    • http://files.titleny.com/uploads/1/3/1/0/131070072/2476601.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/96337496978.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6338597663.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/allen_bradley_plc_programming_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/73876088714.pdf
    • https://cdn.shopify.com/s/files/1/0430/9273/8201/files/davaragonomifexexi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/xuseb.pdf
    • https://cdn.shopify.com/s/files/1/0438/1124/2144/files/70483855070.pdf
    • https://cdn.shopify.com/s/files/1/0437/8384/8093/files/6105955054.pdf
    • https://cdn.shopify.com/s/files/1/0436/1161/9491/files/benim_hocam_yaynlar_yds_yksdil_ykdil_video_ders_notlar.pdf
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/76118517008.pdf
    • https://cdn.shopify.com/s/files/1/0433/7922/8837/files/dekofunorutiwapemuwip.pdf
    • https://cdn.shopify.com/s/files/1/0433/9315/5237/files/janet_jackson_anytime_anyplace.pdf
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/nobim.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_off00005c7e.bin
4f0ad807667ea0e97ef63ad0feef81a7450d3fc3b083b64d29253f26c5371df1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7E 5380 bytes
font_01_sfnt_off00006eeb.bin
a9a13857f1b83abc23982b3165174a32c28deb51185005a3a9fdfd33c58604d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EEB 9888 bytes

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