Malicious PDF — malware analysis report

Static analysis result for SHA-256 008fdc2302b256e4…

MALICIOUS

PDF

39.7 KB Created: 2020-08-03 11:07:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e5059c7eacae57b3b885bf0cdd6bdf98 SHA-1: 7bfab5de8caa407c82d14772ace29bd78f44df8b SHA-256: 008fdc2302b256e4395688ddc8647ff32796f408223a8732259696f57152e6f6
154 Risk Score

Malware Insights

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

The PDF contains a link to a redirector infrastructure, which is a common technique for delivering malicious payloads. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a software tool, likely to trick users into clicking. The presence of numerous external PDF links further suggests a link farm used for SEO poisoning or distributing malicious content.

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=avast+clear+tool
    • http://files.tortoise.com/uploads/1/3/1/8/131857305/gaxifebumakital.pdf
    • http://files.captureourlife.com/uploads/1/3/0/8/130874683/gasamegevepato.pdf
    • http://files.thecitydesk.com/uploads/1/3/1/4/131437308/bumevo-loxokusuroxesir-buzuvosujenow-tefototisit.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/4453/6473/files/fusatikenazaseguz.pdf
    • https://cdn.shopify.com/s/files/1/0430/9182/0711/files/risagoxemumeligimiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/10130096749.pdf
    • https://cdn.shopify.com/s/files/1/0435/6974/1983/files/rotesurasotati.pdf
    • https://cdn.shopify.com/s/files/1/0430/6750/6845/files/kagufuledepisal.pdf
    • https://cdn.shopify.com/s/files/1/0437/2951/8741/files/14509549576.pdf
    • https://cdn.shopify.com/s/files/1/0440/6607/8870/files/28774068475.pdf
    • https://cdn.shopify.com/s/files/1/0431/3959/6454/files/bavofir.pdf
    • https://cdn.shopify.com/s/files/1/0446/9764/9306/files/jeep_patriot_manual_transmission.pdf
    • https://cdn.shopify.com/s/files/1/0429/7064/4631/files/63672569005.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000538a.bin
73a0a4ae2de5efb191e55ae9a3d7b6079dbacb06fc32e31c2b3ba9f0b5fb5630		 pdf-font-stream PDF embedded font (sfnt) at offset 0x538A 4476 bytes
font_01_sfnt_off000062c6.bin
3b96b6afd92e3307fa523e7ac7431e50c37f664469ed170dc00796334d6aa1fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62C6 9820 bytes
font_02_sfnt_off00008475.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8475 4324 bytes

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