Malicious PDF — malware analysis report

Static analysis result for SHA-256 a76e70efce01748c…

MALICIOUS

PDF

45.7 KB Created: 2020-08-14 17:50:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e3ff19f0c31f2bb36dea5e79d0f2d52 SHA-1: e8a4bcfc4c504b898d54439def2a926ad0fa7586 SHA-256: a76e70efce01748c8ca074692e15faf6b9b8bea680037011a8ac66e613115efa
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates a malicious redirector link to 'https://ttraff.com/pify?keyword=cg+panthi+songs+dj+mix+free'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the redirector link is a strong indicator of malicious intent.

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.com/pify?keyword=cg+panthi+songs+dj+mix+free
    • http://files.gabriellaquiroz.com/uploads/1/3/2/6/132681456/punuzibipoxure-vugabevalapo.pdf
    • http://jurir.prepacademysanangelo.com/uploads/1/3/2/7/132740405/428023.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/73385054431.pdf
    • https://cdn.shopify.com/s/files/1/0434/6085/3920/files/lego_batman_cheat_codes.pdf
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/fisukijibelipabazo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1131/7658/files/49939031807.pdf
    • https://cdn.shopify.com/s/files/1/0430/5590/6967/files/96779804427.pdf
    • https://cdn.shopify.com/s/files/1/0439/9883/8942/files/20105494068.pdf
    • https://cdn.shopify.com/s/files/1/0433/9521/9623/files/89916270868.pdf
    • https://cdn.shopify.com/s/files/1/0433/3669/5959/files/medical_terminology_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/bejamujaxotuwoj.pdf
    • https://cdn.shopify.com/s/files/1/0435/2249/0532/files/hp_11c_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kefemomorevogik.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_off00005def.bin
bef05394099bf5523848851cd8c27e9206d74d707318c8c6e4af09240620884e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEF 5472 bytes
font_01_sfnt_off00007064.bin
52f32d5ae67be1f7505ac3bf93aa3b1917c021f27c165b9bdb6443bc26abc095		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7064 14804 bytes
font_02_sfnt_off00009df8.bin
4e9c74695b2cfd2fb3e140fb38317dbab0962dd09580504cf432badf63c5131c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DF8 2920 bytes

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