Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab1e467ff0ca723b…

MALICIOUS

PDF

36.2 KB Created: 2020-08-03 21:23:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9dbd8963149e9114523030654a7fb38f SHA-1: 1f6807009cb4a0c529dfd4f658f959dda773fbd8 SHA-256: ab1e467ff0ca723b26271ded9ae80a997bb15f6bca1fe6cb6c631234d644aaa5
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to song lyrics, which is then linked to a malicious URL. This indicates a phishing attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=who+am+i+casting+crowns+lyrics+pdf
    • http://files.choralartisans.com/uploads/1/3/0/7/130739375/zonor.pdf
    • http://files.petsingoodhealth.com/uploads/1/3/0/8/130814611/831749d0f0e00e.pdf
    • http://files.tanasi-sharkfinguitarpicks.com/uploads/1/3/1/6/131606550/fokiwute_gixijor_vizope_vaforusunu.pdf
    • http://files.disneystateofmind.com/uploads/1/3/2/6/132695333/5513085.pdf
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/xuzowuwuz.pdf
    • https://cdn.shopify.com/s/files/1/0428/3868/7900/files/55268046720.pdf
    • https://cdn.shopify.com/s/files/1/0437/7313/2961/files/12156723990.pdf
    • https://cdn.shopify.com/s/files/1/0428/5143/4659/files/78136760919.pdf
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/22520017540.pdf
    • https://cdn.shopify.com/s/files/1/0427/7259/4844/files/beboxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/62035360995.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9800/files/kolapulivazijiwix.pdf
    • https://cdn.shopify.com/s/files/1/0437/7860/5218/files/south_park_season_23_episode_9.pdf
    • https://cdn.shopify.com/s/files/1/0430/6521/3079/files/lisowunaronevek.pdf
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/zozum.pdf
    • https://cdn.shopify.com/s/files/1/0433/8024/4643/files/17295194011.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_off00004cf8.bin
e69e0d3e99bfd7a3945662cd5bd7736b01b8f92a3af155ff3ae4e7004c7c7c67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CF8 5776 bytes
font_01_sfnt_off0000609f.bin
dd88343ad53c8ec89ac2f2c16a96d93903fa3f546d76ca80ce5fc6cc964daaaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x609F 10332 bytes

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