Malicious PDF — malware analysis report

Static analysis result for SHA-256 014ae2534735c220…

MALICIOUS

PDF

83.4 KB Created: 2020-08-03 12:54:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b9c3773c9ecb9909f145fbcf1ad3745 SHA-1: fc0148d90afa78aaac643a9f870f89c99cd2bfce SHA-256: 014ae2534735c2205d7c9e9ed6cc972b784b95cea77381fa77b5adf887ccb029
154 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm, indicating a probable SEO manipulation or redirection scheme. The embedded URL 'https://ttraff.ru/pify?keyword=bjt+applications+pdf' is identified as a known malicious redirector. While the document body is heavily obfuscated, the presence of numerous external links suggests an attempt to drive traffic or distribute further payloads.

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.ru/pify?keyword=bjt+applications+pdf
    • http://files.mrcolliard.com/uploads/1/3/1/4/131438449/witakoba_dafiw_xexewina_fakowizekosoxu.pdf
    • http://files.lonsdale-estate.co.uk/uploads/1/3/1/4/131437770/7476893.pdf
    • http://files.gbsupplyco.com/uploads/1/3/1/4/131482975/pobusazilotatuzere.pdf
    • http://files.jimbruner.com/uploads/1/3/0/7/130776644/wupejerur.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/3655/6962/files/ripajojutebowidi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ziduvawijixivobufanevi.pdf
    • https://cdn.shopify.com/s/files/1/0435/3051/8682/files/safasoxirikiko.pdf
    • https://cdn.shopify.com/s/files/1/0434/1746/9080/files/21386205307.pdf
    • https://cdn.shopify.com/s/files/1/0431/6240/2965/files/24017052307.pdf
    • https://cdn.shopify.com/s/files/1/0431/5486/6333/files/gozepowatevatekuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/1896/0545/files/zoboresumasabiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9075/6259/files/sizobufotakoxewuzepov.pdf
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/64994231383.pdf
    • https://cdn.shopify.com/s/files/1/0448/6466/7810/files/what_s_on_spike_tv_right_now.pdf
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/zuzefisegotikejokaxonet.pdf
    • https://cdn.shopify.com/s/files/1/0439/2153/9240/files/19641036321.pdf
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/3341841612.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tufajotojitumawudawemir.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e78f.bin
a735294daab83955aea71fd3494dc8385fc817431e9284d7e36c76753466600b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE78F 5180 bytes
font_01_sfnt_off0000f94a.bin
4cdef892f8a28f32a27391f9858a44a957dc4464aa48dd426c6875b92cf3f432		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF94A 15788 bytes
font_02_sfnt_off00012b3c.bin
66cc4d6caaef1a4bf39a49522c9c7395c84a542fae143de6602935ce0c2c3434		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B3C 16128 bytes

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