Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8c0064e86ae95f7…

MALICIOUS

PDF

39.9 KB Created: 2020-08-15 05:14:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97a9a271476ee341ac68e5ea0816d251 SHA-1: 87596010cc29e480929627fa0d35475b316a2f36 SHA-256: e8c0064e86ae95f7e3a5ec65300bcba371cb45f261cb496d2b7abcc7ce81d687
150 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a high number of embedded links, many of which lead to a redirector service. The document body contains text related to 'plumber crack hack apk' and includes the malicious redirector URL. This suggests a phishing or scam attempt, likely using the redirector to obscure the true destination of the malicious payload.

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=plumber+crack+hack+apk
    • http://jimexe.madeunderthemoon.com/uploads/1/3/2/6/132683459/8120743.pdf
    • http://files.wildida.com/uploads/1/3/1/4/131482968/dafisaboberepu.pdf
    • http://lifevaxer.dynamicathleticcenter.org/uploads/1/3/2/7/132741066/mebiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6959/files/66142197167.pdf
    • https://cdn.shopify.com/s/files/1/0430/8362/8708/files/35650255964.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/favubedezemopazejive.pdf
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/ed_sheeran_deluxe_edition_songs.pdf
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/55640260326.pdf
    • https://cdn.shopify.com/s/files/1/0437/6389/2376/files/68366815004.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdf
    • https://cdn.shopify.com/s/files/1/0429/8260/4963/files/zujigunaruwif.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/34971386284.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_off00005ddf.bin
3b0ddc7d7ec905f813bd74474ede939ccacd65525123b1d2b7f32b5c2d112e09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDF 5200 bytes
font_01_sfnt_off00006f61.bin
81dedfce7259debf8cfa2a4b775d08abb690d2c993190fed440cf242569bee82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F61 10408 bytes

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