Malicious PDF — malware analysis report

Static analysis result for SHA-256 d336d4b7a85d50be…

MALICIOUS

PDF

40.2 KB Created: 2020-08-03 05:25:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c365bbb3a20bb192707377e965c3d4e SHA-1: e10e23744a1b5d1ba5da16754488916be028d309 SHA-256: d336d4b7a85d50be18bf804847d3213aac0fa9b603994f519cc683f5d9e3c7ca
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=maps+for+clash+of+clans'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, a PDF SEO link farm heuristic was triggered, suggesting the document is designed to host numerous external links, many of which are hosted on cdn.shopify.com but also include other suspicious domains. No scripts were extracted from this sample.

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=maps+for+clash+of+clans
    • http://xetijo.pcteencourt.com/uploads/1/3/0/9/130969061/dabuzazid-lufediretiv.pdf
    • http://files.question58.com/uploads/1/3/1/4/131453453/4060484.pdf
    • http://files.dandelionridgefarmky.com/uploads/1/3/2/7/132741352/paxevif.pdf
    • http://files.oxnard-photography.com/uploads/1/3/1/4/131409037/furefilek.pdf
    • http://files.fbcq.org/uploads/1/3/1/0/131070918/458b66e.pdf
    • https://cdn.shopify.com/s/files/1/0433/9807/0426/files/5813478109.pdf
    • https://cdn.shopify.com/s/files/1/0428/0506/7943/files/fefukozoramawo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/zaxapez.pdf
    • https://cdn.shopify.com/s/files/1/0437/1808/2711/files/98746639774.pdf
    • https://cdn.shopify.com/s/files/1/0428/7650/2175/files/22454361260.pdf
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/wesulufujetij.pdf
    • https://cdn.shopify.com/s/files/1/0429/4069/4684/files/vba_export_to.pdf
    • https://cdn.shopify.com/s/files/1/0430/8199/0304/files/56504512028.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdf
    • https://cdn.shopify.com/s/files/1/0437/6988/8917/files/70049709456.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051bb.bin
74a8cded2fde008c1eabd3c84589c5a1e913e4140e434c3c78328fb35a683da5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51BB 4648 bytes
font_01_sfnt_off00006167.bin
9b9b18f735be8d8fb3d62a4816930d29b68a477a212b672d241df556f74c77a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6167 10768 bytes
font_02_sfnt_off00008626.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8626 4324 bytes

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