Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad6e56d875f90bdf…

MALICIOUS

PDF

47.2 KB Created: 2020-08-19 06:16:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f79962891a2f8eb8c2befeb030c19d31 SHA-1: 6c0f50959c659b9e1e8a762947046a6fa105eb1d SHA-256: ad6e56d875f90bdfdcbefb34a7db7f967ed0b72e8e43d77136276ba3b6b6e8a1
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing indicating it is a malicious redirector link, pointing to `https://ttraff.com/pify?keyword=free+basketball+games+for+android`. Additionally, it exhibits characteristics of a PDF link farm, with numerous links hosted on `cdn.shopify.com` and other domains. The document body, though heavily obfuscated, contains text related to 'free basketball games for android' and the malicious URL, suggesting a lure to entice users to click the link. The presence of a SE_INVOICE_LURE heuristic further supports the idea that the document is designed to deceive the user into taking an action, such as clicking the embedded malicious link.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/pify?keyword=free+basketball+games+for+android
    • http://files.edushorts.com/uploads/1/3/1/6/131606368/bezonolunas-kitovixi-nududideroke.pdf
    • http://files.anabracic.com/uploads/1/3/2/7/132712614/7d70d98.pdf
    • http://files.elevagplorders.com/uploads/1/3/1/4/131453247/jibadidetaginan.pdf
    • http://sibuwuli.baliartclasses.com/uploads/1/3/1/4/131410685/sipanobe.pdf
    • https://cdn.shopify.com/s/files/1/0438/0891/5613/files/48298274632.pdf
    • https://cdn.shopify.com/s/files/1/0430/1222/7225/files/rixijeri.pdf
    • https://cdn.shopify.com/s/files/1/0432/6588/4323/files/46900221210.pdf
    • https://cdn.shopify.com/s/files/1/0433/6700/6364/files/suxojov.pdf
    • https://cdn.shopify.com/s/files/1/0436/7073/2950/files/3936941899.pdf
    • https://cdn.shopify.com/s/files/1/0434/2356/3925/files/59158332551.pdf
    • https://cdn.shopify.com/s/files/1/0434/2048/3751/files/volajita.pdf
    • https://cdn.shopify.com/s/files/1/0427/5883/2294/files/94393511136.pdf
    • https://cdn.shopify.com/s/files/1/0434/2661/1357/files/bimatoprosta_bula.pdf
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/business_model_canvas_a4.pdf
    • https://cdn.shopify.com/s/files/1/0429/1523/3959/files/mas_colell_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/webumupu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4837/8280/files/moxukojepamomunovadevoni.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_off00007afc.bin
04277bb4faaf3db9223301e7b5acbe3a1f5ce4cf5b4c501d2768ca8c43d18669
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFC 5388 bytes
font_01_sfnt_off00008d36.bin
676b081bdc2460c7c9da94f005a60444b2f6ea2e9f64a3f07d71b1e91aef51a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D36 10128 bytes