Malicious PDF — malware analysis report

Static analysis result for SHA-256 051a379c7de8755b…

MALICIOUS

PDF

42.2 KB Created: 2020-08-15 00:33:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76c2ca0ecd85e6434891b39934e71bbf SHA-1: c50e26dc5b0cf4acbaa90cfcfbf52ae1a948bf7e SHA-256: 051a379c7de8755befab3db36bc08edd45d434fa8a75544f0d601087a2806f80
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.com'. The document body also contains this URL, suggesting an attempt to trick the user into visiting it. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy, likely to obscure the malicious destination or for SEO manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=touch+vpn+premium+cracked+apk
    • http://ligovexes.jcottergallery.com/uploads/1/3/2/8/132814930/ludujo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/57675801757.pdf
    • https://cdn.shopify.com/s/files/1/0434/1432/3356/files/wuropegufixolowijosela.pdf
    • https://cdn.shopify.com/s/files/1/0438/8130/0123/files/muxikabuvisevirutogoz.pdf
    • https://cdn.shopify.com/s/files/1/0439/1357/6603/files/87806708676.pdf
    • https://cdn.shopify.com/s/files/1/0447/3238/3381/files/ct_ghp_trc_tuyn.pdf
    • https://cdn.shopify.com/s/files/1/0428/1732/3175/files/fizimitizopegi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9415/5169/files/85444423601.pdf
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/vuwipakaxa.pdf
    • https://cdn.shopify.com/s/files/1/0436/6221/3273/files/baduvu.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066b7.bin
51d2722bc48fd4d057607552948eb232956f5a7c0a57d1ae32fbe0969202eafc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66B7 5176 bytes
font_01_sfnt_off00007829.bin
499311faa5d2f251584ce140c061bbd28db5bdb5969ed2f591a5302136736952		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7829 10916 bytes

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