Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f64c2b15134eca8…

MALICIOUS

PDF

41.0 KB Created: 2020-09-08 17:53:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 12e70f7f6b65174d44f72065f57d886e SHA-1: f2ec3db548c43596e244bab83ab441fb91bf621d SHA-256: 5f64c2b15134eca8e4a583c479bf2561895b72e7e0d87a01b916681d718f121b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL. This suggests an attempt to drive traffic to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, but the PDF structure and embedded links are indicative of a malicious lure.

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.club/wix?keyword=all+video+er+free++apkpure
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/440e29_f215d1b837cd486d9e3124973fae912e.pdf
    • https://static.usrfiles.com/ugd/7ef0dc_1918d3be379b4b2097d26ed7d7ed57cc.pdf
    • https://static.usrfiles.com/ugd/0c268c_f657e0c760be41cfb60c2f96e96b2a69.pdf
    • https://static.usrfiles.com/ugd/0582e0_659cb5df3ffe4e56b3f1acf9490c0cd2.pdf
    • https://static.usrfiles.com/ugd/e33828_5b6eab5c5489433fa16899a5bd278720.pdf
    • https://static.usrfiles.com/ugd/c75f60_d416de8f125b4c90826897051bf3bf0f.pdf
    • https://static.usrfiles.com/ugd/21a131_1fd19f679ef249fab966026d671761e2.pdf
    • https://static.usrfiles.com/ugd/418e76_952f68a7d64a45f1bf4dedfc9a6d2748.pdf
    • https://cdn.shopify.com/s/files/1/0430/8022/0826/files/psp_iso_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/9054/1733/files/68343192093.pdf
    • https://cdn.shopify.com/s/files/1/0439/8209/4494/files/besharam_song_ringtone.pdf
    • https://cdn.shopify.com/s/files/1/0431/7079/1573/files/jefikesamiti.pdf
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/tangisan_akinabalu_movie.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bf0.bin
afbb1a586cf54dc74cb6bd239a8d797a10e3a9da1c26033f3531d7f223aa6fdb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF0 4664 bytes
font_01_sfnt_off00005bd5.bin
4af291ac6c378c6b2d793c4ead027a2e72d4d8c79d9226f528819b991ee21653		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD5 2252 bytes
font_02_sfnt_off00006616.bin
1539f6e50699e091ae2e7a606115a266fa4195bad7c917dc06d2fd70b058b1d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6616 10012 bytes
font_03_sfnt_off0000885d.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x885D 4324 bytes

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