Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8f1f516deaf6093…

MALICIOUS

PDF

33.3 KB Created: 2020-09-20 14:42:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3d1f09f5072620b17f0c58305c016a1 SHA-1: ded132455d2725e1722a8ea57511fa20db32e7d4 SHA-256: f8f1f516deaf609344913522644e4c6b71da1bf2ce6ca23ae5c8dae827bb054e
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=stubhub+vs+seatgeek+reddit'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though partially corrupted, contains the same suspicious URL, suggesting a lure to a malicious site. No scripts were extracted from this sample.

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.me/wix?keyword=stubhub+vs+seatgeek+reddit
    • https://cdn.shopify.com/s/files/1/0430/8212/1377/files/32764168715.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6068/files/colony_comparison-_contrast_chart_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/cal_state_san_bernardino_nursing_information_session.pdf
    • https://cdn.shopify.com/s/files/1/0483/0579/9331/files/savugijurowosetabu.pdf
    • https://773d5987-8dd5-4c25-919a-abb7f4e10bf2.filesusr.com/ugd/2994dd_c2412b4832434302b05669124e6dc223.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0436/0011/7928/files/48995100975.pdf
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/zumexunevorudoduvemu.pdf
    • https://cdn.shopify.com/s/files/1/0428/0123/4076/files/9157784511.pdf
    • https://cdn.shopify.com/s/files/1/0436/2380/9187/files/fofujunosofisawe.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/maplestory_bishop_guide.pdf
    • https://205e8c15-630d-424a-8361-acb57632206d.filesusr.com/ugd/65d6f7_4c905182706d4bf883ef74fbc8ffef3c.pdf?index=true
    • https://021395f6-ef25-42fa-81a6-5a4293dfa623.filesusr.com/ugd/4ae4db_29a2227e305843e99f5f392d138af3d8.pdf?index=true
    • 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_off00004509.bin
8a1ab4a5afcf0ec3ec0fdec6554c7ab2c4d2d3a452a566c17506ea9423819112		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4509 5420 bytes
font_01_sfnt_off0000576e.bin
cf4b27b93fc6ccb0df51bd53f1f480637bf6d2d54e6ee3006ed1400ac93a15b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x576E 9820 bytes

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