Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcb269672282ee4b…

MALICIOUS

PDF

45.9 KB Created: 2020-08-02 16:00:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ec0d029032e8ec1062b528ec7af0f2a SHA-1: ed267dc38f8fb2e45c5a2ed517167afb3168bcd1 SHA-256: dcb269672282ee4b480d655159a314f8d1d80694249822d66031e7d4f8ede7dc
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a PDF link farm, indicating a social engineering attempt. The embedded URL 'https://ttraff.cc/pify?keyword=network+study+guide+pdf' is a primary indicator of malicious redirection. The document body, though heavily obfuscated, contains references to 'network study guide pdf' and the malicious URL, reinforcing the lure.

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=network+study+guide+pdf
    • http://files.mychairspins.com/uploads/1/3/1/6/131637190/wonod.pdf
    • http://files.beyondwishingforwellness.com/uploads/1/3/0/8/130874055/bbaaf2a4.pdf
    • http://files.caplantrescue.org/uploads/1/3/1/3/131380626/xoguxaretasitiboka.pdf
    • https://cdn.shopify.com/s/files/1/0432/3360/7842/files/litixod.pdf
    • https://cdn.shopify.com/s/files/1/0450/2568/9758/files/oblivion_permanent_retirement.pdf
    • https://cdn.shopify.com/s/files/1/0440/4638/5317/files/fiduseguziju.pdf
    • https://cdn.shopify.com/s/files/1/0429/0586/2307/files/webirotikuzuremunap.pdf
    • https://cdn.shopify.com/s/files/1/0429/5619/3955/files/tanurubiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/jonarazumax.pdf
    • https://cdn.shopify.com/s/files/1/0437/6471/1575/files/97376653320.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/the_four_3.pdf
    • https://cdn.shopify.com/s/files/1/0432/0939/2285/files/sijuxamovir.pdf
    • https://cdn.shopify.com/s/files/1/0437/5992/7448/files/98346934646.pdf
    • https://cdn.shopify.com/s/files/1/0438/7880/9755/files/lanojidu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.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_off000074bb.bin
348f1c24335fa27117accda3bfcc21b9fb6c42f9da627d96af4b11862c639e08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74BB 5192 bytes
font_01_sfnt_off000086a0.bin
752d12c2b3404b3eaf382d3db8554fa49d93026707b625cf899171e82b7f50ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86A0 10448 bytes

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