Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e2752519d6621c…

MALICIOUS

PDF

37.6 KB Created: 2020-08-12 00:02:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e87051ada51071324802933f1d55168a SHA-1: e476d57f9d92b8bf39068a33d2eacff275918fb3 SHA-256: c0e2752519d6621c1a8dd00e5f07637d18317231adfa46bf0e87a6e5db29338f
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=airport+vocabulary+exercises+pdf'. The document body, though heavily obfuscated, appears to contain this URL, suggesting a lure to external content. The presence of multiple Shopify links, while some are benign, contributes to a link farm tactic. The ML classifier strongly flagged this PDF as malicious.

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=airport+vocabulary+exercises+pdf
    • http://verod.canal-art-by-julie.co.uk/uploads/1/3/2/6/132695578/gelulugedib.pdf
    • http://files.bt32llc.com/uploads/1/3/0/8/130874124/rarizipegekakokave.pdf
    • http://fuwipiwad.wellbee-ing.com/uploads/1/3/0/7/130738848/7080403.pdf
    • http://kiweg.familyatlouisiana.com/uploads/1/3/1/0/131070722/bb53b.pdf
    • https://cdn.shopify.com/s/files/1/0438/3634/2434/files/10833014946.pdf
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/62351506923.pdf
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/62427225830.pdf
    • https://cdn.shopify.com/s/files/1/0431/8271/9136/files/sivokatulagojebogod.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/shurflo_4008-_101-_e65.pdf
    • https://cdn.shopify.com/s/files/1/0440/5172/6501/files/pisarovifowebaludujusu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9183/6566/files/nemilasinopopivadasukivi.pdf
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/ceh_v10_certified_ethical_hacker.pdf
    • https://cdn.shopify.com/s/files/1/0432/7551/8107/files/febukomeki.pdf
    • https://cdn.shopify.com/s/files/1/0433/2208/1448/files/zilazesakefejorusifopav.pdf
    • https://cdn.shopify.com/s/files/1/0434/9542/4165/files/android_phone_codes.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/41646548479.pdf
    • https://cdn.shopify.com/s/files/1/0436/8770/6774/files/51492930874.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/
    • https://cdn.shopify.com/s/files/1/0436/8770/6774/files/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046e4.bin
d41e16861e035e68c1722d643d3012159adfff3f96b80c8a7737475e4449c104		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46E4 5284 bytes
font_01_sfnt_off000058f1.bin
7388c4473d168b984d8a2945fd9ef0f484d0af5c2c24f411150dbb4c7a16d891		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58F1 10104 bytes
font_02_sfnt_off00007b5a.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5A 4324 bytes

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