Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8a369815a8ac6fe…

MALICIOUS

PDF

42.6 KB Created: 2020-08-10 23:31:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afac61ca07db036a988db008f14d01ba SHA-1: 2361422b32acd8acc76801d85af3bb9e17a3a0a7 SHA-256: e8a369815a8ac6fe48d72decb9a027f68c5bf71b864f7031ad288c0779b47f67
150 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. The document body, though heavily obfuscated, contains text suggesting a lure related to 'effects of globalization on health pdf'. The primary malicious URL identified is https://ttraff.cc/pify?keyword=effects+of+globalization+on+health+pdf, which redirects to other PDF files hosted on various domains. This indicates a link-farming or redirection scheme designed to lead users to potentially malicious content.

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=effects+of+globalization+on+health+pdf
    • http://babexi.thebestclass.org/uploads/1/3/1/0/131070161/jisopi.pdf
    • http://buxamo.alessandroking.com/uploads/1/3/1/6/131637136/gamonududaxafopo.pdf
    • http://files.fuego979.com/uploads/1/3/1/8/131871704/mopodazunuj.pdf
    • https://cdn.shopify.com/s/files/1/0435/7426/3963/files/wobinutorofenobebonarit.pdf
    • https://cdn.shopify.com/s/files/1/0438/5511/8501/files/96922035255.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/dogowewagixulilibopoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8072/files/idm_serial_number_2017.pdf
    • https://cdn.shopify.com/s/files/1/0447/1917/7882/files/body_mass_index_formula.pdf
    • https://cdn.shopify.com/s/files/1/0435/8691/2415/files/pikipesatukiwed.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/xenufebet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74195332560.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5612/files/best_highlighter_app_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/51267364831.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_off000062f2.bin
ac4d96e41cdd095e4d75bf99b16b97496f0ed1042b522f6bd5432deffc16c8e2
pdf-font-stream PDF embedded font (sfnt) at offset 0x62F2 5468 bytes
font_01_sfnt_off0000758b.bin
03179eeacf05eca1194d39fbd92080ebf7a1fbe262f515e696f6b385024cd7b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x758B 12428 bytes