Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d418a00e9122eeb…

MALICIOUS

PDF

65.1 KB Created: 2020-08-30 06:28:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d841af5ed8e91017275b7685e83a387c SHA-1: 3d46aba6b65982b2ccf8131e8bba2cce8cbb5651 SHA-256: 5d418a00e9122eeb4d7bfa23d56d77a638ef0d1de68cb2911f449805b05a00d7
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination and evade detection. The document body, though partially corrupted, contains text suggesting a search query lure, aiming to trick users into clicking the malicious link. The presence of numerous external PDF links also indicates a link farm, a common tactic for SEO manipulation and traffic redirection.

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/wix?keyword=what+does+netflix+code+aip-701+mean
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/b8c837_b60fd36fb6c045fe827e8519dc7dce62.pdf
    • https://static.usrfiles.com/ugd/0049ca_032357a11a9144488e8dde8403c54e8e.pdf
    • https://static.usrfiles.com/ugd/87a178_bf054ca3538b41d8a523290c8a69bef3.pdf
    • https://cdn.shopify.com/s/files/1/0430/4044/0471/files/mining_trainer_pandaria.pdf
    • https://cdn.shopify.com/s/files/1/0434/4935/2349/files/nusodinirefazananad.pdf
    • https://cdn.shopify.com/s/files/1/0434/3801/4616/files/sql_server_2020_administrator_s_guide_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/8759/2608/files/nalisiwifosanavufifubo.pdf
    • https://cdn.shopify.com/s/files/1/0433/1690/4104/files/54159848020.pdf
    • https://cdn.shopify.com/s/files/1/0431/3507/4465/files/clear_cookies_and_cache_google_chrome_android.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/kelavipederozogegesozaxo.pdf
    • https://static.usrfiles.com/ugd/b8c837_9c881a4cdd3a48caac3f3699895b18b5.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef2b933a735040d496d20ab50877c2cd.pdf
    • https://static.usrfiles.com/ugd/6d59ab_0f48a6eb023c4253a8c30f5ef9d13e56.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_off0000b39b.bin
ba8c511371876175d9aff16f41f06ed3db973bcfc86194d13cf01e0bf17f56c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB39B 5476 bytes
font_01_sfnt_off0000c62e.bin
2728a50881341c6dacf50f767c0d84efb6f3ad1f9b3b460e92851d8db534dd7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC62E 10184 bytes
font_02_sfnt_off0000e912.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE912 4324 bytes

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