Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee9b8f73b41ea72d…

MALICIOUS

PDF

34.2 KB Created: 2020-09-06 16:44:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d18109448d5994fbd01fc24a6ea2494e SHA-1: 180ed5c411d80f99f295b8303177e465bdc86c6f SHA-256: ee9b8f73b41ea72d6f9d55f92d8c4f992692cfe304e6b3cad4cb3760b4459252
152 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.me/wix?keyword=planet+earth+colouring+template'. The document body, though heavily obfuscated, appears to contain the same lure and URLs. The presence of a link farm and a malicious redirector strongly suggests a phishing or scam attempt.

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.me/wix?keyword=planet+earth+colouring+template
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/risejanon.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/add_report_to_dashboard_in_power_bi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/tokedinapudi.pdf
    • https://cdn.shopify.com/s/files/1/0438/9660/2779/files/aggiornamento_android_8_huawei_p10_lite.pdf
    • https://static.usrfiles.com/ugd/374ce0_75ce355df5dd4c64a6b8cd5a572f0005.pdf
    • https://static.usrfiles.com/ugd/55cc32_746e24b3d5fa442f940645873a6ee4f9.pdf
    • https://static.usrfiles.com/ugd/625844_9b4f8db7534444c4b2f648f2f28dee2d.pdf
    • https://static.usrfiles.com/ugd/1cc777_e765da0f28534b1cbf478510dbf9dcc0.pdf
    • https://static.usrfiles.com/ugd/b8c837_b6d52c594b6346f6a852138a574443f8.pdf
    • https://static.usrfiles.com/ugd/d7c203_7d26fac419a744a4aca0b139fa458b90.pdf
    • https://static.usrfiles.com/ugd/b8c837_827273defede44d1b6180b8bfe373ef4.pdf
    • https://cdn.shopify.com/s/files/1/0430/7877/9029/files/marvel_spider_man_comics_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/4361/7948/files/95997264335.pdf
    • https://cdn.shopify.com/s/files/1/0437/3767/7989/files/double_sided_adhesive_sheets_for_cricut.pdf
    • https://cdn.shopify.com/s/files/1/0430/3188/8035/files/woriveg.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_off000049ae.bin
1c6b42a45f7f75b0978b9f2ad0d17ac625683d691c6fa5f35f22826a3b7a7674
pdf-font-stream PDF embedded font (sfnt) at offset 0x49AE 5172 bytes
font_01_sfnt_off00005b20.bin
920078603be2325e6b3e3452d3597a7a8cbe49821f41bf94cf7365714c6e4475
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B20 9728 bytes