Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d034be275f7a352…

MALICIOUS

PDF

56.5 KB Created: 2020-08-02 12:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ccd1e0658097a13128389488ad65ccc SHA-1: 40aec9d21c86155ccf60220d39d7e33e9e5b30de SHA-256: 7d034be275f7a35217e8dba5851b598fd22fbda83cfe1121011d1be9db3748d8
152 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a high concentration of external links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.ru/pify?keyword=minecraft+maximum+enchantment+level, which is likely used to funnel victims to further malicious content. The document body, though heavily obfuscated, contains this URL, reinforcing its role in the attack.

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=minecraft+maximum+enchantment+level
    • http://files.newwoodfordhs.com/uploads/1/3/0/9/130969525/zorivuraj.pdf
    • http://files.maltipoos.org/uploads/1/3/1/4/131437648/rufas.pdf
    • http://files.pdkmusic.com/uploads/1/3/1/3/131381544/vubalubamamawad_sivejujena_guboral_kataleviwe.pdf
    • http://files.naturebajuicebar.com/uploads/1/3/1/3/131383251/xetilu-supisuloludubi-bipajexa-vibekefipopefis.pdf
    • http://files.thefireflymystic.com/uploads/1/3/0/7/130775009/3439985.pdf
    • http://files.pdkmusic.com/uploads/1/3/1/3/131381544/vubalubamamawad_siveju
    • https://cdn.shopify.com/s/files/1/0428/5300/7516/files/17302412945.pdf
    • https://cdn.shopify.com/s/files/1/0432/7804/1244/files/zufokuxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5149/files/35439852618.pdf
    • https://cdn.shopify.com/s/files/1/0431/3835/1255/files/vigilitagosijuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/3314/1146/files/dilev.pdf
    • https://cdn.shopify.com/s/files/1/0431/8576/6564/files/vabenofuvakenajekuxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1442/2687/files/sitowel.pdf
    • https://cdn.shopify.com/s/files/1/0440/1653/3654/files/lewasagiberu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/53134710632.pdf
    • https://cdn.shopify.com/s/files/1/0431/8819/1396/files/xoxunon.pdf
    • https://cdn.shopify.com/s/files/1/0431/0935/1578/files/jiwofi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/72591382720.pdf
    • https://cdn.shopify.com/s/files/1/0429/3387/8940/files/nigagujoga.pdf
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/dokarabipedipaji.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_off00009ee1.bin
93b0e1860925451cb67eb4d802b2c1c4562308775785fb7884e1900284bc0f15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9EE1 5076 bytes
font_01_sfnt_off0000b00f.bin
85f12d92ef21e8e1d809927a94d1d6dc43bd050a6878b0e7c04d5742334d8df2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB00F 10632 bytes

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