Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea6f90b02f58a5a6…

MALICIOUS

PDF

40.0 KB Created: 2020-08-23 15:21:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89d990d579852f8fe43346dc791e754a SHA-1: 1654e3b3e5d38f4ec9a0c0e5e63f3890aa82ecbc SHA-256: ea6f90b02f58a5a6859a1a43cd62933afd55bc0aa8b57abadcff637d50c8f165
120 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 for a malicious redirector link and a link farm, indicating an attempt to direct users to malicious sites. The document body, though heavily obfuscated, contains text related to 'Apple store stuck' and a URL that appears to be a redirector. The embedded links, particularly 'https://ttraff.cc/pify?keyword=apple+store++stuck', are likely used to deliver a secondary payload or lead to a phishing page.

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=apple+store++stuck
    • http://kenawe.favinyl2019.com/uploads/1/3/1/4/131437421/nemafavunofigiv-pobasa.pdf
    • http://xajexa.grassstainedphoto.com/uploads/1/3/0/8/130814851/deneka.pdf
    • https://cdn.shopify.com/s/files/1/0431/0722/1670/files/73772259559.pdf
    • https://cdn.shopify.com/s/files/1/0436/4809/0270/files/mazobegozizisubumaririv.pdf
    • https://cdn.shopify.com/s/files/1/0431/1161/2572/files/sample_bio.pdf
    • https://cdn.shopify.com/s/files/1/0435/2786/4469/files/paduwirolidiziluwasaz.pdf
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/42619229591.pdf
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/6837856528.pdf
    • https://cdn.shopify.com/s/files/1/0437/4013/5575/files/contoh_jurnal_akuntansi_keuangan.pdf
    • https://cdn.shopify.com/s/files/1/0433/6232/0536/files/lodasapimokiwowegale.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/12224330922.pdf
    • https://cdn.shopify.com/s/files/1/0440/6856/9238/files/breath_of_fire_3_prima_guide.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_off00005f53.bin
41c8fe951edfe5426287556e3da4d9fe37097e806823a26e01e6fc5fad4fc57b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F53 4772 bytes
font_01_sfnt_off00006fa4.bin
540914b22b11cbd8cef30d904bb1138a246fc81a72f142158936876f2e6eab39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA4 10528 bytes

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