Malicious PDF — malware analysis report

Static analysis result for SHA-256 8602475e1f9733af…

MALICIOUS

PDF

35.5 KB Created: 2020-08-19 03:59:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0287eda8269580d04affbc41e5aab743 SHA-1: 35a963472e95e5a53dc2adc0668a382de5541811 SHA-256: 8602475e1f9733af9bbf794d91df1f9de4c551fea3e0dd8a5029d784be67a533
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=doraemon+ka+cartoon++free'. This indicates the document's primary purpose is to trick users into clicking this link, likely leading to a malicious download or phishing page. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the payload.

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=doraemon+ka+cartoon++free
    • http://files.tltwriting.com/uploads/1/3/0/7/130739974/kigikibok.pdf
    • http://files.ombodieslondon.com/uploads/1/3/1/6/131636665/6cf3e21114d4.pdf
    • http://files.foodandmoodhealing.com/uploads/1/3/1/4/131437980/xanir_makogevofog_tobonofixo_tajipojugoxito.pdf
    • http://wanuk.chriswarrendickins.com/uploads/1/3/0/7/130776617/pisidivot.pdf
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/87358765542.pdf
    • https://cdn.shopify.com/s/files/1/0431/4670/7104/files/nomisalegu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26443777516.pdf
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/82118927651.pdf
    • https://cdn.shopify.com/s/files/1/0432/6083/8050/files/fegudikezatesegobodi.pdf
    • https://cdn.shopify.com/s/files/1/0457/6690/1924/files/lawigulinepilarenudo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/mathematical_constants_list.pdf
    • https://cdn.shopify.com/s/files/1/0428/9354/1532/files/milusolavun.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_off00004ef3.bin
c55a67ef329bd97158e1588ed0111b547190a7a9783019dc1e74219df0961a4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EF3 4880 bytes
font_01_sfnt_off00005f7b.bin
03d173e956f88ee0c714f38edb359d9eade23e4981d258e626c7c222b227af4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7B 9936 bytes

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